/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 14:11:33,991 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 14:11:34,054 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 14:11:34,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 14:11:34,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 14:11:34,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 14:11:34,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 14:11:34,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 14:11:34,081 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 14:11:34,083 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 14:11:34,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 14:11:34,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 14:11:34,084 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 14:11:34,085 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 14:11:34,085 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 14:11:34,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 14:11:34,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 14:11:34,085 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 14:11:34,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 14:11:34,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 14:11:34,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 14:11:34,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 14:11:34,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 14:11:34,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 14:11:34,086 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 14:11:34,087 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 14:11:34,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 14:11:34,087 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 14:11:34,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 14:11:34,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 14:11:34,088 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 14:11:34,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 14:11:34,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:11:34,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 14:11:34,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 14:11:34,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 14:11:34,089 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 14:11:34,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 14:11:34,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 14:11:34,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 14:11:34,089 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 14:11:34,089 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 14:11:34,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 14:11:34,090 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 14:11:34,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 14:11:34,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 14:11:34,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 14:11:34,286 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 14:11:34,287 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 14:11:34,287 INFO L431 ainManager$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+sep-reducer.c [2023-12-21 14:11:35,213 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 14:11:35,535 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 14:11:35,536 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2023-12-21 14:11:35,568 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b9337b99/7b7bac3606f44d6bb321adab7519fbb1/FLAG0dd87465c [2023-12-21 14:11:35,579 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b9337b99/7b7bac3606f44d6bb321adab7519fbb1 [2023-12-21 14:11:35,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 14:11:35,582 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 14:11:35,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 14:11:35,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 14:11:35,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 14:11:35,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:11:35" (1/1) ... [2023-12-21 14:11:35,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2896d0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35, skipping insertion in model container [2023-12-21 14:11:35,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:11:35" (1/1) ... [2023-12-21 14:11:35,725 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 14:11:36,292 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+sep-reducer.c[80190,80203] [2023-12-21 14:11:36,384 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+sep-reducer.c[115653,115666] [2023-12-21 14:11:36,430 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+sep-reducer.c[133417,133430] [2023-12-21 14:11:36,454 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+sep-reducer.c[142316,142329] [2023-12-21 14:11:36,462 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+sep-reducer.c[146749,146762] [2023-12-21 14:11:36,471 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+sep-reducer.c[151062,151075] [2023-12-21 14:11:36,533 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+sep-reducer.c[185818,185831] [2023-12-21 14:11:36,568 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+sep-reducer.c[203409,203422] [2023-12-21 14:11:36,585 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+sep-reducer.c[212345,212358] [2023-12-21 14:11:36,593 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+sep-reducer.c[216815,216828] [2023-12-21 14:11:36,601 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+sep-reducer.c[221165,221178] [2023-12-21 14:11:36,633 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+sep-reducer.c[240022,240035] [2023-12-21 14:11:36,648 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+sep-reducer.c[248958,248971] [2023-12-21 14:11:36,658 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+sep-reducer.c[253428,253441] [2023-12-21 14:11:36,666 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+sep-reducer.c[257778,257791] [2023-12-21 14:11:36,675 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+sep-reducer.c[262743,262756] [2023-12-21 14:11:36,683 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+sep-reducer.c[267102,267115] [2023-12-21 14:11:36,691 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+sep-reducer.c[271572,271585] [2023-12-21 14:11:36,700 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+sep-reducer.c[275922,275935] [2023-12-21 14:11:36,708 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+sep-reducer.c[280508,280521] [2023-12-21 14:11:36,717 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+sep-reducer.c[285025,285038] [2023-12-21 14:11:36,726 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+sep-reducer.c[289491,289504] [2023-12-21 14:11:36,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:11:36,785 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 14:11:36,945 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+sep-reducer.c[80190,80203] [2023-12-21 14:11:36,989 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+sep-reducer.c[115653,115666] [2023-12-21 14:11:37,011 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+sep-reducer.c[133417,133430] [2023-12-21 14:11:37,023 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+sep-reducer.c[142316,142329] [2023-12-21 14:11:37,030 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+sep-reducer.c[146749,146762] [2023-12-21 14:11:37,037 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+sep-reducer.c[151062,151075] [2023-12-21 14:11:37,086 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+sep-reducer.c[185818,185831] [2023-12-21 14:11:37,109 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+sep-reducer.c[203409,203422] [2023-12-21 14:11:37,120 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+sep-reducer.c[212345,212358] [2023-12-21 14:11:37,127 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+sep-reducer.c[216815,216828] [2023-12-21 14:11:37,133 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+sep-reducer.c[221165,221178] [2023-12-21 14:11:37,165 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+sep-reducer.c[240022,240035] [2023-12-21 14:11:37,179 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+sep-reducer.c[248958,248971] [2023-12-21 14:11:37,185 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+sep-reducer.c[253428,253441] [2023-12-21 14:11:37,194 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+sep-reducer.c[257778,257791] [2023-12-21 14:11:37,247 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+sep-reducer.c[262743,262756] [2023-12-21 14:11:37,253 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+sep-reducer.c[267102,267115] [2023-12-21 14:11:37,260 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+sep-reducer.c[271572,271585] [2023-12-21 14:11:37,266 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+sep-reducer.c[275922,275935] [2023-12-21 14:11:37,273 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+sep-reducer.c[280508,280521] [2023-12-21 14:11:37,280 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+sep-reducer.c[285025,285038] [2023-12-21 14:11:37,287 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+sep-reducer.c[289491,289504] [2023-12-21 14:11:37,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:11:37,330 INFO L206 MainTranslator]: Completed translation [2023-12-21 14:11:37,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37 WrapperNode [2023-12-21 14:11:37,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 14:11:37,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 14:11:37,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 14:11:37,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 14:11:37,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (1/1) ... [2023-12-21 14:11:37,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (1/1) ... [2023-12-21 14:11:37,533 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13227 [2023-12-21 14:11:37,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 14:11:37,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 14:11:37,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 14:11:37,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 14:11:37,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (1/1) ... [2023-12-21 14:11:37,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (1/1) ... [2023-12-21 14:11:37,582 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (1/1) ... [2023-12-21 14:11:37,653 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]. [2023-12-21 14:11:37,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (1/1) ... [2023-12-21 14:11:37,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (1/1) ... [2023-12-21 14:11:37,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (1/1) ... [2023-12-21 14:11:37,799 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (1/1) ... [2023-12-21 14:11:37,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (1/1) ... [2023-12-21 14:11:37,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (1/1) ... [2023-12-21 14:11:37,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 14:11:37,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 14:11:37,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 14:11:37,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 14:11:37,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (1/1) ... [2023-12-21 14:11:37,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:11:37,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:11:37,900 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) [2023-12-21 14:11:37,914 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 [2023-12-21 14:11:37,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 14:11:37,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 14:11:37,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 14:11:37,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 14:11:38,262 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 14:11:38,264 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 14:11:41,679 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 14:11:41,746 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 14:11:41,746 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 14:11:41,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:11:41 BoogieIcfgContainer [2023-12-21 14:11:41,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 14:11:41,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 14:11:41,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 14:11:41,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 14:11:41,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:11:35" (1/3) ... [2023-12-21 14:11:41,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe1a510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:11:41, skipping insertion in model container [2023-12-21 14:11:41,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:37" (2/3) ... [2023-12-21 14:11:41,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe1a510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:11:41, skipping insertion in model container [2023-12-21 14:11:41,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:11:41" (3/3) ... [2023-12-21 14:11:41,752 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2023-12-21 14:11:41,765 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 14:11:41,765 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-12-21 14:11:41,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 14:11:41,823 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;@71c12df6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 14:11:41,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-12-21 14:11:41,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 2539 states, 2516 states have (on average 1.7595389507154213) internal successors, (4427), 2538 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:41,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 14:11:41,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:41,852 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] [2023-12-21 14:11:41,853 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)] === [2023-12-21 14:11:41,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:41,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1286229050, now seen corresponding path program 1 times [2023-12-21 14:11:41,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:41,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689245044] [2023-12-21 14:11:41,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:41,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:42,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:42,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:42,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689245044] [2023-12-21 14:11:42,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689245044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:42,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:42,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:11:42,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567750037] [2023-12-21 14:11:42,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:42,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:11:42,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:42,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:11:42,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:11:42,428 INFO L87 Difference]: Start difference. First operand has 2539 states, 2516 states have (on average 1.7595389507154213) internal successors, (4427), 2538 states have internal predecessors, (4427), 0 states have call successors, (0), 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 17.2) 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) [2023-12-21 14:11:43,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:43,569 INFO L93 Difference]: Finished difference Result 3025 states and 5200 transitions. [2023-12-21 14:11:43,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:11:43,571 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 [2023-12-21 14:11:43,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:43,596 INFO L225 Difference]: With dead ends: 3025 [2023-12-21 14:11:43,596 INFO L226 Difference]: Without dead ends: 1765 [2023-12-21 14:11:43,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:11:43,611 INFO L413 NwaCegarLoop]: 1672 mSDtfsCounter, 8891 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8891 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:43,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8891 Valid, 1712 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:43,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2023-12-21 14:11:43,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1765. [2023-12-21 14:11:43,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1743 states have (on average 1.2948938611589214) internal successors, (2257), 1764 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:43,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2257 transitions. [2023-12-21 14:11:43,697 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2257 transitions. Word has length 86 [2023-12-21 14:11:43,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:43,697 INFO L495 AbstractCegarLoop]: Abstraction has 1765 states and 2257 transitions. [2023-12-21 14:11:43,698 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) [2023-12-21 14:11:43,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2257 transitions. [2023-12-21 14:11:43,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 14:11:43,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:43,703 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] [2023-12-21 14:11:43,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 14:11:43,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:43,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:43,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1719768578, now seen corresponding path program 1 times [2023-12-21 14:11:43,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:43,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015202960] [2023-12-21 14:11:43,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:43,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:43,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:43,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015202960] [2023-12-21 14:11:43,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015202960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:43,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:43,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:11:43,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974041244] [2023-12-21 14:11:43,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:43,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:11:43,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:43,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:11:43,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:11:43,901 INFO L87 Difference]: Start difference. First operand 1765 states and 2257 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) [2023-12-21 14:11:44,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:44,765 INFO L93 Difference]: Finished difference Result 2485 states and 3200 transitions. [2023-12-21 14:11:44,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:11:44,766 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 [2023-12-21 14:11:44,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:44,771 INFO L225 Difference]: With dead ends: 2485 [2023-12-21 14:11:44,771 INFO L226 Difference]: Without dead ends: 1637 [2023-12-21 14:11:44,772 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 [2023-12-21 14:11:44,773 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 6201 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6201 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:44,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6201 Valid, 989 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:11:44,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2023-12-21 14:11:44,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1637. [2023-12-21 14:11:44,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1637 states, 1615 states have (on average 1.3077399380804953) internal successors, (2112), 1636 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:44,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1637 states and 2112 transitions. [2023-12-21 14:11:44,796 INFO L78 Accepts]: Start accepts. Automaton has 1637 states and 2112 transitions. Word has length 86 [2023-12-21 14:11:44,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:44,796 INFO L495 AbstractCegarLoop]: Abstraction has 1637 states and 2112 transitions. [2023-12-21 14:11:44,797 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) [2023-12-21 14:11:44,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1637 states and 2112 transitions. [2023-12-21 14:11:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 14:11:44,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:44,799 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] [2023-12-21 14:11:44,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 14:11:44,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:44,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:44,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1685761605, now seen corresponding path program 1 times [2023-12-21 14:11:44,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:44,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223038190] [2023-12-21 14:11:44,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:44,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:44,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:44,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:44,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223038190] [2023-12-21 14:11:44,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223038190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:44,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:44,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:11:44,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620250562] [2023-12-21 14:11:44,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:44,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:11:44,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:44,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:11:44,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:11:44,944 INFO L87 Difference]: Start difference. First operand 1637 states and 2112 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) [2023-12-21 14:11:45,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:45,664 INFO L93 Difference]: Finished difference Result 2213 states and 2862 transitions. [2023-12-21 14:11:45,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:11:45,665 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 [2023-12-21 14:11:45,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:45,669 INFO L225 Difference]: With dead ends: 2213 [2023-12-21 14:11:45,669 INFO L226 Difference]: Without dead ends: 1381 [2023-12-21 14:11:45,670 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 [2023-12-21 14:11:45,671 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 5328 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5328 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:45,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5328 Valid, 903 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:11:45,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2023-12-21 14:11:45,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1381. [2023-12-21 14:11:45,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1359 states have (on average 1.3237674760853568) internal successors, (1799), 1380 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:45,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1799 transitions. [2023-12-21 14:11:45,689 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1799 transitions. Word has length 86 [2023-12-21 14:11:45,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:45,690 INFO L495 AbstractCegarLoop]: Abstraction has 1381 states and 1799 transitions. [2023-12-21 14:11:45,690 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) [2023-12-21 14:11:45,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1799 transitions. [2023-12-21 14:11:45,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-21 14:11:45,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:45,692 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] [2023-12-21 14:11:45,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 14:11:45,692 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:45,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:45,692 INFO L85 PathProgramCache]: Analyzing trace with hash -518082489, now seen corresponding path program 1 times [2023-12-21 14:11:45,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:45,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486793141] [2023-12-21 14:11:45,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:45,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:45,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:45,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486793141] [2023-12-21 14:11:45,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486793141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:45,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:45,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:11:45,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268657913] [2023-12-21 14:11:45,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:45,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:11:45,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:45,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:11:45,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:11:45,828 INFO L87 Difference]: Start difference. First operand 1381 states and 1799 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) [2023-12-21 14:11:46,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:46,456 INFO L93 Difference]: Finished difference Result 2004 states and 2623 transitions. [2023-12-21 14:11:46,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:11:46,456 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 [2023-12-21 14:11:46,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:46,460 INFO L225 Difference]: With dead ends: 2004 [2023-12-21 14:11:46,460 INFO L226 Difference]: Without dead ends: 1286 [2023-12-21 14:11:46,461 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 [2023-12-21 14:11:46,462 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 5006 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5006 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:46,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5006 Valid, 858 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:11:46,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2023-12-21 14:11:46,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1286. [2023-12-21 14:11:46,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1264 states have (on average 1.3346518987341771) internal successors, (1687), 1285 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:46,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1687 transitions. [2023-12-21 14:11:46,479 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1687 transitions. Word has length 88 [2023-12-21 14:11:46,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:46,479 INFO L495 AbstractCegarLoop]: Abstraction has 1286 states and 1687 transitions. [2023-12-21 14:11:46,479 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) [2023-12-21 14:11:46,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1687 transitions. [2023-12-21 14:11:46,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 14:11:46,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:46,481 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] [2023-12-21 14:11:46,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 14:11:46,481 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:46,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:46,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1951557911, now seen corresponding path program 1 times [2023-12-21 14:11:46,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:46,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536234667] [2023-12-21 14:11:46,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:46,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:46,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:46,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:46,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536234667] [2023-12-21 14:11:46,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536234667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:46,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:46,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:11:46,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404669422] [2023-12-21 14:11:46,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:46,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:11:46,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:46,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:11:46,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:11:46,591 INFO L87 Difference]: Start difference. First operand 1286 states and 1687 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) [2023-12-21 14:11:47,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:47,059 INFO L93 Difference]: Finished difference Result 1622 states and 2099 transitions. [2023-12-21 14:11:47,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:11:47,059 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 [2023-12-21 14:11:47,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:47,062 INFO L225 Difference]: With dead ends: 1622 [2023-12-21 14:11:47,062 INFO L226 Difference]: Without dead ends: 991 [2023-12-21 14:11:47,063 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 [2023-12-21 14:11:47,064 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 3797 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3797 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:47,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3797 Valid, 683 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:11:47,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2023-12-21 14:11:47,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 991. [2023-12-21 14:11:47,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3405572755417956) internal successors, (1299), 990 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:47,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1299 transitions. [2023-12-21 14:11:47,075 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1299 transitions. Word has length 90 [2023-12-21 14:11:47,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:47,075 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1299 transitions. [2023-12-21 14:11:47,075 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) [2023-12-21 14:11:47,075 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1299 transitions. [2023-12-21 14:11:47,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 14:11:47,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:47,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:47,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 14:11:47,077 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:47,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:47,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1685476223, now seen corresponding path program 1 times [2023-12-21 14:11:47,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:47,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582335105] [2023-12-21 14:11:47,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:47,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:47,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:47,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:47,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582335105] [2023-12-21 14:11:47,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582335105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:47,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:47,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:11:47,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068661194] [2023-12-21 14:11:47,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:47,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:11:47,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:47,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:11:47,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:11:47,184 INFO L87 Difference]: Start difference. First operand 991 states and 1299 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:47,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:47,546 INFO L93 Difference]: Finished difference Result 1181 states and 1516 transitions. [2023-12-21 14:11:47,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:11:47,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-21 14:11:47,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:47,551 INFO L225 Difference]: With dead ends: 1181 [2023-12-21 14:11:47,551 INFO L226 Difference]: Without dead ends: 701 [2023-12-21 14:11:47,552 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 [2023-12-21 14:11:47,554 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 2631 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2631 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:47,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2631 Valid, 530 Invalid, 440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:11:47,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2023-12-21 14:11:47,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2023-12-21 14:11:47,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.346097201767305) internal successors, (914), 700 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:47,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 914 transitions. [2023-12-21 14:11:47,566 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 914 transitions. Word has length 92 [2023-12-21 14:11:47,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:47,567 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 914 transitions. [2023-12-21 14:11:47,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:47,567 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 914 transitions. [2023-12-21 14:11:47,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 14:11:47,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:47,568 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] [2023-12-21 14:11:47,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 14:11:47,569 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:47,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:47,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1346771176, now seen corresponding path program 1 times [2023-12-21 14:11:47,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:47,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384343177] [2023-12-21 14:11:47,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:47,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:47,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:47,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384343177] [2023-12-21 14:11:47,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384343177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:47,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:47,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 14:11:47,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237233493] [2023-12-21 14:11:47,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:47,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:11:47,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:47,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:11:47,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:11:47,967 INFO L87 Difference]: Start difference. First operand 701 states and 914 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:49,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:49,024 INFO L93 Difference]: Finished difference Result 1470 states and 1948 transitions. [2023-12-21 14:11:49,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 14:11:49,024 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-21 14:11:49,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:49,027 INFO L225 Difference]: With dead ends: 1470 [2023-12-21 14:11:49,027 INFO L226 Difference]: Without dead ends: 1231 [2023-12-21 14:11:49,028 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 [2023-12-21 14:11:49,028 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 3470 mSDsluCounter, 2271 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3470 SdHoareTripleChecker+Valid, 2854 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:49,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3470 Valid, 2854 Invalid, 2121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:49,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2023-12-21 14:11:49,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 701. [2023-12-21 14:11:49,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3446244477172313) internal successors, (913), 700 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:49,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 913 transitions. [2023-12-21 14:11:49,040 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 913 transitions. Word has length 94 [2023-12-21 14:11:49,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:49,041 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 913 transitions. [2023-12-21 14:11:49,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:49,041 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 913 transitions. [2023-12-21 14:11:49,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 14:11:49,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:49,042 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] [2023-12-21 14:11:49,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 14:11:49,042 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:49,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:49,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1670913064, now seen corresponding path program 1 times [2023-12-21 14:11:49,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:49,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400124790] [2023-12-21 14:11:49,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:49,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:49,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:49,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:49,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400124790] [2023-12-21 14:11:49,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400124790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:49,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:49,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 14:11:49,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283539476] [2023-12-21 14:11:49,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:49,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:11:49,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:49,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:11:49,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:11:49,348 INFO L87 Difference]: Start difference. First operand 701 states and 913 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:50,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:50,013 INFO L93 Difference]: Finished difference Result 1329 states and 1685 transitions. [2023-12-21 14:11:50,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:11:50,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-21 14:11:50,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:50,017 INFO L225 Difference]: With dead ends: 1329 [2023-12-21 14:11:50,017 INFO L226 Difference]: Without dead ends: 950 [2023-12-21 14:11:50,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:11:50,018 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 4201 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4201 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:50,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4201 Valid, 1185 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:11:50,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2023-12-21 14:11:50,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 701. [2023-12-21 14:11:50,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3431516936671575) internal successors, (912), 700 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:50,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 912 transitions. [2023-12-21 14:11:50,027 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 912 transitions. Word has length 94 [2023-12-21 14:11:50,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:50,027 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 912 transitions. [2023-12-21 14:11:50,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:50,027 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 912 transitions. [2023-12-21 14:11:50,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 14:11:50,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:50,028 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] [2023-12-21 14:11:50,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 14:11:50,028 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:50,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:50,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1574448360, now seen corresponding path program 1 times [2023-12-21 14:11:50,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:50,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986257333] [2023-12-21 14:11:50,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:50,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:50,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:50,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:50,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986257333] [2023-12-21 14:11:50,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986257333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:50,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:50,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:50,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081090623] [2023-12-21 14:11:50,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:50,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:50,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:50,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:50,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:50,277 INFO L87 Difference]: Start difference. First operand 701 states and 912 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:51,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:51,295 INFO L93 Difference]: Finished difference Result 1444 states and 1922 transitions. [2023-12-21 14:11:51,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:51,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-21 14:11:51,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:51,299 INFO L225 Difference]: With dead ends: 1444 [2023-12-21 14:11:51,299 INFO L226 Difference]: Without dead ends: 1235 [2023-12-21 14:11:51,300 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 [2023-12-21 14:11:51,300 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 2713 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2713 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:51,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2713 Valid, 3190 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2202 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:51,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2023-12-21 14:11:51,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 701. [2023-12-21 14:11:51,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3416789396170838) internal successors, (911), 700 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:51,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 911 transitions. [2023-12-21 14:11:51,311 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 911 transitions. Word has length 94 [2023-12-21 14:11:51,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:51,311 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 911 transitions. [2023-12-21 14:11:51,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:51,312 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 911 transitions. [2023-12-21 14:11:51,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 14:11:51,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:51,313 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] [2023-12-21 14:11:51,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 14:11:51,313 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:51,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:51,314 INFO L85 PathProgramCache]: Analyzing trace with hash -53559704, now seen corresponding path program 1 times [2023-12-21 14:11:51,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:51,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916572234] [2023-12-21 14:11:51,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:51,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:51,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:51,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:51,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916572234] [2023-12-21 14:11:51,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916572234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:51,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:51,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:51,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129032015] [2023-12-21 14:11:51,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:51,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:51,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:51,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:51,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:51,607 INFO L87 Difference]: Start difference. First operand 701 states and 911 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:52,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:52,723 INFO L93 Difference]: Finished difference Result 1363 states and 1818 transitions. [2023-12-21 14:11:52,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:52,724 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-21 14:11:52,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:52,727 INFO L225 Difference]: With dead ends: 1363 [2023-12-21 14:11:52,727 INFO L226 Difference]: Without dead ends: 1230 [2023-12-21 14:11:52,727 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 [2023-12-21 14:11:52,728 INFO L413 NwaCegarLoop]: 913 mSDtfsCounter, 3460 mSDsluCounter, 3202 mSDsCounter, 0 mSdLazyCounter, 2526 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3460 SdHoareTripleChecker+Valid, 4115 SdHoareTripleChecker+Invalid, 2530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:52,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3460 Valid, 4115 Invalid, 2530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2526 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:52,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2023-12-21 14:11:52,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 701. [2023-12-21 14:11:52,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3402061855670102) internal successors, (910), 700 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 910 transitions. [2023-12-21 14:11:52,737 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 910 transitions. Word has length 94 [2023-12-21 14:11:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:52,737 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 910 transitions. [2023-12-21 14:11:52,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 910 transitions. [2023-12-21 14:11:52,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:52,738 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:52,738 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] [2023-12-21 14:11:52,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 14:11:52,739 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:52,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:52,739 INFO L85 PathProgramCache]: Analyzing trace with hash 339408658, now seen corresponding path program 1 times [2023-12-21 14:11:52,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:52,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685538998] [2023-12-21 14:11:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:52,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:53,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:53,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:53,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685538998] [2023-12-21 14:11:53,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685538998] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:53,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:53,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:53,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139213493] [2023-12-21 14:11:53,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:53,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:53,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:53,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:53,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:53,073 INFO L87 Difference]: Start difference. First operand 701 states and 910 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) [2023-12-21 14:11:54,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:54,101 INFO L93 Difference]: Finished difference Result 1322 states and 1755 transitions. [2023-12-21 14:11:54,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:54,101 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 [2023-12-21 14:11:54,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:54,105 INFO L225 Difference]: With dead ends: 1322 [2023-12-21 14:11:54,105 INFO L226 Difference]: Without dead ends: 1223 [2023-12-21 14:11:54,105 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 [2023-12-21 14:11:54,106 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 3396 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3396 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:54,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3396 Valid, 3267 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:54,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2023-12-21 14:11:54,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 701. [2023-12-21 14:11:54,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3387334315169366) internal successors, (909), 700 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 909 transitions. [2023-12-21 14:11:54,114 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 909 transitions. Word has length 95 [2023-12-21 14:11:54,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:54,115 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 909 transitions. [2023-12-21 14:11:54,115 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) [2023-12-21 14:11:54,115 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 909 transitions. [2023-12-21 14:11:54,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 14:11:54,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:54,116 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] [2023-12-21 14:11:54,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 14:11:54,116 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:54,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:54,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1573191597, now seen corresponding path program 1 times [2023-12-21 14:11:54,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:54,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021447154] [2023-12-21 14:11:54,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:54,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:54,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:54,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:54,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021447154] [2023-12-21 14:11:54,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021447154] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:54,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:54,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:54,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116925028] [2023-12-21 14:11:54,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:54,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:54,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:54,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:54,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:54,378 INFO L87 Difference]: Start difference. First operand 701 states and 909 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:55,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:55,439 INFO L93 Difference]: Finished difference Result 1327 states and 1758 transitions. [2023-12-21 14:11:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:55,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-21 14:11:55,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:55,442 INFO L225 Difference]: With dead ends: 1327 [2023-12-21 14:11:55,442 INFO L226 Difference]: Without dead ends: 1223 [2023-12-21 14:11:55,443 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 [2023-12-21 14:11:55,443 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 3070 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3070 SdHoareTripleChecker+Valid, 3450 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:55,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3070 Valid, 3450 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2402 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:55,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2023-12-21 14:11:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 701. [2023-12-21 14:11:55,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.337260677466863) internal successors, (908), 700 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:55,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 908 transitions. [2023-12-21 14:11:55,452 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 908 transitions. Word has length 96 [2023-12-21 14:11:55,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:55,452 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 908 transitions. [2023-12-21 14:11:55,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:55,452 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 908 transitions. [2023-12-21 14:11:55,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 14:11:55,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:55,453 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] [2023-12-21 14:11:55,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 14:11:55,453 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:55,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:55,454 INFO L85 PathProgramCache]: Analyzing trace with hash 474771949, now seen corresponding path program 1 times [2023-12-21 14:11:55,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:55,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590347560] [2023-12-21 14:11:55,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:55,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:55,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:55,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590347560] [2023-12-21 14:11:55,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590347560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:55,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:55,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:55,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546265991] [2023-12-21 14:11:55,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:55,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:55,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:55,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:55,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:55,724 INFO L87 Difference]: Start difference. First operand 701 states and 908 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:56,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:56,813 INFO L93 Difference]: Finished difference Result 1377 states and 1826 transitions. [2023-12-21 14:11:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:56,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-21 14:11:56,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:56,816 INFO L225 Difference]: With dead ends: 1377 [2023-12-21 14:11:56,816 INFO L226 Difference]: Without dead ends: 1230 [2023-12-21 14:11:56,817 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 [2023-12-21 14:11:56,817 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 3139 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 2698 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3139 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:56,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3139 Valid, 4339 Invalid, 2702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2698 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:56,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2023-12-21 14:11:56,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 701. [2023-12-21 14:11:56,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3357879234167893) internal successors, (907), 700 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:56,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 907 transitions. [2023-12-21 14:11:56,827 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 907 transitions. Word has length 96 [2023-12-21 14:11:56,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:56,827 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 907 transitions. [2023-12-21 14:11:56,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:56,827 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 907 transitions. [2023-12-21 14:11:56,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 14:11:56,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:56,828 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] [2023-12-21 14:11:56,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 14:11:56,828 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:56,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:56,829 INFO L85 PathProgramCache]: Analyzing trace with hash 87823981, now seen corresponding path program 1 times [2023-12-21 14:11:56,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:56,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358058405] [2023-12-21 14:11:56,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:56,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:57,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:57,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:57,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358058405] [2023-12-21 14:11:57,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358058405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:57,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:57,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:11:57,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84100162] [2023-12-21 14:11:57,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:57,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:11:57,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:57,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:11:57,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:11:57,229 INFO L87 Difference]: Start difference. First operand 701 states and 907 transitions. Second operand has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:58,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:58,969 INFO L93 Difference]: Finished difference Result 1892 states and 2573 transitions. [2023-12-21 14:11:58,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:11:58,969 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-21 14:11:58,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:58,974 INFO L225 Difference]: With dead ends: 1892 [2023-12-21 14:11:58,974 INFO L226 Difference]: Without dead ends: 1788 [2023-12-21 14:11:58,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:11:58,975 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 7947 mSDsluCounter, 2697 mSDsCounter, 0 mSdLazyCounter, 2632 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7947 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 2872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 2632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:58,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7947 Valid, 3512 Invalid, 2872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 2632 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 14:11:58,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2023-12-21 14:11:58,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 706. [2023-12-21 14:11:58,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3333333333333333) internal successors, (912), 705 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:58,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 912 transitions. [2023-12-21 14:11:58,989 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 912 transitions. Word has length 96 [2023-12-21 14:11:58,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:58,990 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 912 transitions. [2023-12-21 14:11:58,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:58,990 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 912 transitions. [2023-12-21 14:11:58,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 14:11:58,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:58,991 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] [2023-12-21 14:11:58,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 14:11:58,991 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:58,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:58,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1301641659, now seen corresponding path program 1 times [2023-12-21 14:11:58,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:58,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106631721] [2023-12-21 14:11:58,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:58,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:59,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:59,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:59,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106631721] [2023-12-21 14:11:59,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106631721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:59,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:59,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:59,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777469961] [2023-12-21 14:11:59,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:59,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:59,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:59,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:59,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:59,242 INFO L87 Difference]: Start difference. First operand 706 states and 912 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:00,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:00,235 INFO L93 Difference]: Finished difference Result 1296 states and 1708 transitions. [2023-12-21 14:12:00,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:00,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-21 14:12:00,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:00,238 INFO L225 Difference]: With dead ends: 1296 [2023-12-21 14:12:00,238 INFO L226 Difference]: Without dead ends: 1212 [2023-12-21 14:12:00,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:00,239 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 3875 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3875 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 1944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:00,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3875 Valid, 2613 Invalid, 1944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:00,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2023-12-21 14:12:00,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 706. [2023-12-21 14:12:00,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3318713450292399) internal successors, (911), 705 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:00,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 911 transitions. [2023-12-21 14:12:00,249 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 911 transitions. Word has length 96 [2023-12-21 14:12:00,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:00,249 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 911 transitions. [2023-12-21 14:12:00,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:00,249 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 911 transitions. [2023-12-21 14:12:00,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 14:12:00,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:00,250 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] [2023-12-21 14:12:00,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 14:12:00,250 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:00,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:00,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1905411411, now seen corresponding path program 1 times [2023-12-21 14:12:00,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:00,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698164395] [2023-12-21 14:12:00,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:00,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:00,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:00,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:00,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698164395] [2023-12-21 14:12:00,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698164395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:00,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:00,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:00,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046190571] [2023-12-21 14:12:00,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:00,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:00,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:00,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:00,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:00,447 INFO L87 Difference]: Start difference. First operand 706 states and 911 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:01,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:01,484 INFO L93 Difference]: Finished difference Result 1382 states and 1832 transitions. [2023-12-21 14:12:01,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:01,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-21 14:12:01,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:01,487 INFO L225 Difference]: With dead ends: 1382 [2023-12-21 14:12:01,487 INFO L226 Difference]: Without dead ends: 1235 [2023-12-21 14:12:01,488 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 [2023-12-21 14:12:01,488 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 2355 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2355 SdHoareTripleChecker+Valid, 3460 SdHoareTripleChecker+Invalid, 2394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:01,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2355 Valid, 3460 Invalid, 2394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:12:01,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2023-12-21 14:12:01,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 706. [2023-12-21 14:12:01,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3304093567251463) internal successors, (910), 705 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:01,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 910 transitions. [2023-12-21 14:12:01,496 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 910 transitions. Word has length 96 [2023-12-21 14:12:01,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:01,496 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 910 transitions. [2023-12-21 14:12:01,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 910 transitions. [2023-12-21 14:12:01,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 14:12:01,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:01,497 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] [2023-12-21 14:12:01,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 14:12:01,498 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:01,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:01,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1768372077, now seen corresponding path program 1 times [2023-12-21 14:12:01,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:01,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516247613] [2023-12-21 14:12:01,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:01,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:01,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:01,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:01,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516247613] [2023-12-21 14:12:01,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516247613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:01,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:01,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:01,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549462785] [2023-12-21 14:12:01,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:01,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:01,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:01,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:01,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:01,771 INFO L87 Difference]: Start difference. First operand 706 states and 910 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:02,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:02,918 INFO L93 Difference]: Finished difference Result 1327 states and 1754 transitions. [2023-12-21 14:12:02,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:12:02,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-21 14:12:02,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:02,921 INFO L225 Difference]: With dead ends: 1327 [2023-12-21 14:12:02,921 INFO L226 Difference]: Without dead ends: 1223 [2023-12-21 14:12:02,922 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 [2023-12-21 14:12:02,922 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 3052 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 2552 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 3851 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:02,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3052 Valid, 3851 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2552 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:12:02,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2023-12-21 14:12:02,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 706. [2023-12-21 14:12:02,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3289473684210527) internal successors, (909), 705 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:02,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 909 transitions. [2023-12-21 14:12:02,930 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 909 transitions. Word has length 96 [2023-12-21 14:12:02,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:02,931 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 909 transitions. [2023-12-21 14:12:02,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:02,931 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 909 transitions. [2023-12-21 14:12:02,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:02,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:02,932 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] [2023-12-21 14:12:02,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 14:12:02,932 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:02,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:02,932 INFO L85 PathProgramCache]: Analyzing trace with hash 372640941, now seen corresponding path program 1 times [2023-12-21 14:12:02,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:02,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922417946] [2023-12-21 14:12:02,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:02,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:03,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:03,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:03,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922417946] [2023-12-21 14:12:03,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922417946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:03,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:03,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:03,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038008715] [2023-12-21 14:12:03,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:03,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:03,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:03,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:03,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:03,167 INFO L87 Difference]: Start difference. First operand 706 states and 909 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) [2023-12-21 14:12:04,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:04,091 INFO L93 Difference]: Finished difference Result 1297 states and 1706 transitions. [2023-12-21 14:12:04,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:04,091 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 [2023-12-21 14:12:04,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:04,094 INFO L225 Difference]: With dead ends: 1297 [2023-12-21 14:12:04,094 INFO L226 Difference]: Without dead ends: 1212 [2023-12-21 14:12:04,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:04,095 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 3748 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 1990 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3748 SdHoareTripleChecker+Valid, 2739 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:04,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3748 Valid, 2739 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1990 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:04,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2023-12-21 14:12:04,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 706. [2023-12-21 14:12:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.327485380116959) internal successors, (908), 705 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:04,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 908 transitions. [2023-12-21 14:12:04,103 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 908 transitions. Word has length 97 [2023-12-21 14:12:04,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:04,104 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 908 transitions. [2023-12-21 14:12:04,104 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) [2023-12-21 14:12:04,104 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 908 transitions. [2023-12-21 14:12:04,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:04,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:04,105 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] [2023-12-21 14:12:04,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 14:12:04,105 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:04,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:04,105 INFO L85 PathProgramCache]: Analyzing trace with hash 620938253, now seen corresponding path program 1 times [2023-12-21 14:12:04,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:04,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945423985] [2023-12-21 14:12:04,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:04,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:04,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:04,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:04,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945423985] [2023-12-21 14:12:04,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945423985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:04,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:04,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:04,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388919961] [2023-12-21 14:12:04,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:04,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:04,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:04,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:04,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:04,323 INFO L87 Difference]: Start difference. First operand 706 states and 908 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) [2023-12-21 14:12:05,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:05,287 INFO L93 Difference]: Finished difference Result 1297 states and 1705 transitions. [2023-12-21 14:12:05,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:05,289 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 [2023-12-21 14:12:05,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:05,292 INFO L225 Difference]: With dead ends: 1297 [2023-12-21 14:12:05,292 INFO L226 Difference]: Without dead ends: 1212 [2023-12-21 14:12:05,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:05,292 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 3550 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3550 SdHoareTripleChecker+Valid, 2941 SdHoareTripleChecker+Invalid, 2178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:05,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3550 Valid, 2941 Invalid, 2178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:05,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2023-12-21 14:12:05,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 706. [2023-12-21 14:12:05,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3260233918128654) internal successors, (907), 705 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:05,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 907 transitions. [2023-12-21 14:12:05,301 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 907 transitions. Word has length 97 [2023-12-21 14:12:05,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:05,301 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 907 transitions. [2023-12-21 14:12:05,301 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) [2023-12-21 14:12:05,301 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 907 transitions. [2023-12-21 14:12:05,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:05,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:05,302 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] [2023-12-21 14:12:05,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 14:12:05,302 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:05,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:05,303 INFO L85 PathProgramCache]: Analyzing trace with hash 108985709, now seen corresponding path program 1 times [2023-12-21 14:12:05,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:05,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200016239] [2023-12-21 14:12:05,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:05,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:05,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:05,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:05,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200016239] [2023-12-21 14:12:05,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200016239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:05,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:05,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:05,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979289314] [2023-12-21 14:12:05,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:05,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:05,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:05,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:05,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:05,691 INFO L87 Difference]: Start difference. First operand 706 states and 907 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) [2023-12-21 14:12:07,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:07,248 INFO L93 Difference]: Finished difference Result 1763 states and 2377 transitions. [2023-12-21 14:12:07,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:07,249 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 [2023-12-21 14:12:07,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:07,253 INFO L225 Difference]: With dead ends: 1763 [2023-12-21 14:12:07,253 INFO L226 Difference]: Without dead ends: 1678 [2023-12-21 14:12:07,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:12:07,254 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 7948 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7948 SdHoareTripleChecker+Valid, 3184 SdHoareTripleChecker+Invalid, 2639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:07,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7948 Valid, 3184 Invalid, 2639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 14:12:07,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2023-12-21 14:12:07,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 711. [2023-12-21 14:12:07,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 689 states have (on average 1.323657474600871) internal successors, (912), 710 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:07,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 912 transitions. [2023-12-21 14:12:07,264 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 912 transitions. Word has length 97 [2023-12-21 14:12:07,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:07,265 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 912 transitions. [2023-12-21 14:12:07,265 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) [2023-12-21 14:12:07,265 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 912 transitions. [2023-12-21 14:12:07,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:07,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:07,266 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] [2023-12-21 14:12:07,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 14:12:07,266 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:07,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:07,266 INFO L85 PathProgramCache]: Analyzing trace with hash -670035859, now seen corresponding path program 1 times [2023-12-21 14:12:07,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:07,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799752280] [2023-12-21 14:12:07,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:07,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:07,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:07,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:07,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799752280] [2023-12-21 14:12:07,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799752280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:07,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:07,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:07,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237805846] [2023-12-21 14:12:07,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:07,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:07,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:07,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:07,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:07,493 INFO L87 Difference]: Start difference. First operand 711 states and 912 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) [2023-12-21 14:12:08,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:08,390 INFO L93 Difference]: Finished difference Result 1261 states and 1641 transitions. [2023-12-21 14:12:08,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:08,391 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 [2023-12-21 14:12:08,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:08,393 INFO L225 Difference]: With dead ends: 1261 [2023-12-21 14:12:08,394 INFO L226 Difference]: Without dead ends: 1185 [2023-12-21 14:12:08,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:08,394 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 3886 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3886 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:08,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3886 Valid, 2441 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1850 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2023-12-21 14:12:08,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 711. [2023-12-21 14:12:08,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 689 states have (on average 1.3222060957910013) internal successors, (911), 710 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:08,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 911 transitions. [2023-12-21 14:12:08,409 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 911 transitions. Word has length 97 [2023-12-21 14:12:08,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:08,409 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 911 transitions. [2023-12-21 14:12:08,409 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) [2023-12-21 14:12:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 911 transitions. [2023-12-21 14:12:08,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:08,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:08,411 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] [2023-12-21 14:12:08,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 14:12:08,411 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:08,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:08,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1778659085, now seen corresponding path program 1 times [2023-12-21 14:12:08,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:08,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102022375] [2023-12-21 14:12:08,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:08,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:08,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:08,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:08,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102022375] [2023-12-21 14:12:08,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102022375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:08,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:08,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:08,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170327312] [2023-12-21 14:12:08,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:08,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:08,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:08,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:08,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:08,667 INFO L87 Difference]: Start difference. First operand 711 states and 911 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) [2023-12-21 14:12:09,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:09,646 INFO L93 Difference]: Finished difference Result 1332 states and 1753 transitions. [2023-12-21 14:12:09,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:09,656 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 [2023-12-21 14:12:09,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:09,659 INFO L225 Difference]: With dead ends: 1332 [2023-12-21 14:12:09,659 INFO L226 Difference]: Without dead ends: 1228 [2023-12-21 14:12:09,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:12:09,660 INFO L413 NwaCegarLoop]: 806 mSDtfsCounter, 3587 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 2278 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3587 SdHoareTripleChecker+Valid, 3215 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:09,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3587 Valid, 3215 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2278 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:09,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2023-12-21 14:12:09,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 706. [2023-12-21 14:12:09,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3230994152046784) internal successors, (905), 705 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:09,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 905 transitions. [2023-12-21 14:12:09,668 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 905 transitions. Word has length 97 [2023-12-21 14:12:09,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:09,668 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 905 transitions. [2023-12-21 14:12:09,668 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) [2023-12-21 14:12:09,668 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 905 transitions. [2023-12-21 14:12:09,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:09,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:09,669 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] [2023-12-21 14:12:09,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 14:12:09,670 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:09,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:09,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1155193037, now seen corresponding path program 1 times [2023-12-21 14:12:09,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:09,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908735668] [2023-12-21 14:12:09,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:09,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:09,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:09,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:09,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908735668] [2023-12-21 14:12:09,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908735668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:09,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:09,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:09,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566702522] [2023-12-21 14:12:09,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:09,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:09,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:09,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:09,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:09,883 INFO L87 Difference]: Start difference. First operand 706 states and 905 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) [2023-12-21 14:12:10,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:10,837 INFO L93 Difference]: Finished difference Result 1292 states and 1696 transitions. [2023-12-21 14:12:10,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:10,838 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 [2023-12-21 14:12:10,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:10,840 INFO L225 Difference]: With dead ends: 1292 [2023-12-21 14:12:10,840 INFO L226 Difference]: Without dead ends: 1207 [2023-12-21 14:12:10,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:10,841 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 3684 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3684 SdHoareTripleChecker+Valid, 2793 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:10,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3684 Valid, 2793 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2011 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:10,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2023-12-21 14:12:10,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 706. [2023-12-21 14:12:10,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3216374269005848) internal successors, (904), 705 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:10,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 904 transitions. [2023-12-21 14:12:10,848 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 904 transitions. Word has length 97 [2023-12-21 14:12:10,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:10,849 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 904 transitions. [2023-12-21 14:12:10,849 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) [2023-12-21 14:12:10,849 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 904 transitions. [2023-12-21 14:12:10,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:10,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:10,850 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] [2023-12-21 14:12:10,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 14:12:10,851 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:10,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:10,851 INFO L85 PathProgramCache]: Analyzing trace with hash 789636914, now seen corresponding path program 1 times [2023-12-21 14:12:10,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:10,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966583739] [2023-12-21 14:12:10,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:10,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:11,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:11,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:11,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966583739] [2023-12-21 14:12:11,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966583739] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:11,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:11,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:11,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728806002] [2023-12-21 14:12:11,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:11,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:11,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:11,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:11,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:11,046 INFO L87 Difference]: Start difference. First operand 706 states and 904 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) [2023-12-21 14:12:11,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:11,993 INFO L93 Difference]: Finished difference Result 1397 states and 1835 transitions. [2023-12-21 14:12:11,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:11,993 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 [2023-12-21 14:12:11,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:11,995 INFO L225 Difference]: With dead ends: 1397 [2023-12-21 14:12:11,995 INFO L226 Difference]: Without dead ends: 1235 [2023-12-21 14:12:11,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:12:11,996 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 2353 mSDsluCounter, 2532 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2353 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 2344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:11,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2353 Valid, 3426 Invalid, 2344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:11,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2023-12-21 14:12:12,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 706. [2023-12-21 14:12:12,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3201754385964912) internal successors, (903), 705 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:12,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 903 transitions. [2023-12-21 14:12:12,004 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 903 transitions. Word has length 98 [2023-12-21 14:12:12,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:12,004 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 903 transitions. [2023-12-21 14:12:12,004 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) [2023-12-21 14:12:12,004 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 903 transitions. [2023-12-21 14:12:12,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:12,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:12,005 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] [2023-12-21 14:12:12,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 14:12:12,005 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:12,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:12,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1331918194, now seen corresponding path program 1 times [2023-12-21 14:12:12,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:12,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115688764] [2023-12-21 14:12:12,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:12,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:12,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:12,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:12,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115688764] [2023-12-21 14:12:12,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115688764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:12,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:12,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:12,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432003689] [2023-12-21 14:12:12,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:12,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:12,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:12,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:12,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:12,282 INFO L87 Difference]: Start difference. First operand 706 states and 903 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) [2023-12-21 14:12:13,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:13,329 INFO L93 Difference]: Finished difference Result 1341 states and 1759 transitions. [2023-12-21 14:12:13,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:12:13,329 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 [2023-12-21 14:12:13,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:13,331 INFO L225 Difference]: With dead ends: 1341 [2023-12-21 14:12:13,331 INFO L226 Difference]: Without dead ends: 1228 [2023-12-21 14:12:13,332 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 [2023-12-21 14:12:13,332 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 3317 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 2529 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3317 SdHoareTripleChecker+Valid, 4109 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:13,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3317 Valid, 4109 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2529 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:12:13,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2023-12-21 14:12:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 706. [2023-12-21 14:12:13,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3187134502923976) internal successors, (902), 705 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:13,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 902 transitions. [2023-12-21 14:12:13,340 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 902 transitions. Word has length 98 [2023-12-21 14:12:13,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:13,340 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 902 transitions. [2023-12-21 14:12:13,340 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) [2023-12-21 14:12:13,340 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 902 transitions. [2023-12-21 14:12:13,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:13,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:13,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:12:13,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 14:12:13,341 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:13,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:13,342 INFO L85 PathProgramCache]: Analyzing trace with hash 826135346, now seen corresponding path program 1 times [2023-12-21 14:12:13,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:13,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596330791] [2023-12-21 14:12:13,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:13,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:13,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:13,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:13,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596330791] [2023-12-21 14:12:13,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596330791] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:13,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:13,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:13,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400896209] [2023-12-21 14:12:13,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:13,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:13,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:13,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:13,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:13,539 INFO L87 Difference]: Start difference. First operand 706 states and 902 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) [2023-12-21 14:12:14,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:14,490 INFO L93 Difference]: Finished difference Result 1296 states and 1697 transitions. [2023-12-21 14:12:14,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:14,491 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 [2023-12-21 14:12:14,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:14,493 INFO L225 Difference]: With dead ends: 1296 [2023-12-21 14:12:14,493 INFO L226 Difference]: Without dead ends: 1207 [2023-12-21 14:12:14,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:14,494 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 3583 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 2062 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 2908 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:14,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3583 Valid, 2908 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2062 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:14,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2023-12-21 14:12:14,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 706. [2023-12-21 14:12:14,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.317251461988304) internal successors, (901), 705 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:14,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 901 transitions. [2023-12-21 14:12:14,504 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 901 transitions. Word has length 98 [2023-12-21 14:12:14,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:14,504 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 901 transitions. [2023-12-21 14:12:14,504 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) [2023-12-21 14:12:14,504 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 901 transitions. [2023-12-21 14:12:14,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:14,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:14,508 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] [2023-12-21 14:12:14,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 14:12:14,508 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:14,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:14,509 INFO L85 PathProgramCache]: Analyzing trace with hash -658364686, now seen corresponding path program 1 times [2023-12-21 14:12:14,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:14,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019956860] [2023-12-21 14:12:14,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:14,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:14,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:14,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:14,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019956860] [2023-12-21 14:12:14,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019956860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:14,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:14,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:14,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083600132] [2023-12-21 14:12:14,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:14,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:14,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:14,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:14,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:14,821 INFO L87 Difference]: Start difference. First operand 706 states and 901 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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) [2023-12-21 14:12:16,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:16,699 INFO L93 Difference]: Finished difference Result 1915 states and 2579 transitions. [2023-12-21 14:12:16,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:16,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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 [2023-12-21 14:12:16,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:16,703 INFO L225 Difference]: With dead ends: 1915 [2023-12-21 14:12:16,703 INFO L226 Difference]: Without dead ends: 1802 [2023-12-21 14:12:16,703 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 [2023-12-21 14:12:16,704 INFO L413 NwaCegarLoop]: 948 mSDtfsCounter, 6457 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 3626 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6457 SdHoareTripleChecker+Valid, 5028 SdHoareTripleChecker+Invalid, 3826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 3626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:16,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6457 Valid, 5028 Invalid, 3826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 3626 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 14:12:16,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2023-12-21 14:12:16,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 711. [2023-12-21 14:12:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 689 states have (on average 1.3149492017416546) internal successors, (906), 710 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 906 transitions. [2023-12-21 14:12:16,713 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 906 transitions. Word has length 98 [2023-12-21 14:12:16,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:16,713 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 906 transitions. [2023-12-21 14:12:16,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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) [2023-12-21 14:12:16,713 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 906 transitions. [2023-12-21 14:12:16,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:16,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:16,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:12:16,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 14:12:16,714 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:16,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:16,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1884558386, now seen corresponding path program 1 times [2023-12-21 14:12:16,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:16,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542038466] [2023-12-21 14:12:16,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:16,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:16,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:16,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:16,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542038466] [2023-12-21 14:12:16,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542038466] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:16,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:16,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:16,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410572682] [2023-12-21 14:12:16,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:16,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:16,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:16,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:16,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:16,923 INFO L87 Difference]: Start difference. First operand 711 states and 906 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) [2023-12-21 14:12:17,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:17,864 INFO L93 Difference]: Finished difference Result 1301 states and 1700 transitions. [2023-12-21 14:12:17,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:17,865 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 [2023-12-21 14:12:17,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:17,866 INFO L225 Difference]: With dead ends: 1301 [2023-12-21 14:12:17,866 INFO L226 Difference]: Without dead ends: 1212 [2023-12-21 14:12:17,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:17,867 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 3579 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3579 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:17,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3579 Valid, 2910 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2057 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:17,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2023-12-21 14:12:17,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 711. [2023-12-21 14:12:17,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 689 states have (on average 1.3134978229317853) internal successors, (905), 710 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:17,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 905 transitions. [2023-12-21 14:12:17,888 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 905 transitions. Word has length 98 [2023-12-21 14:12:17,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:17,889 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 905 transitions. [2023-12-21 14:12:17,889 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) [2023-12-21 14:12:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 905 transitions. [2023-12-21 14:12:17,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:17,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:17,890 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] [2023-12-21 14:12:17,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 14:12:17,890 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)] === [2023-12-21 14:12:17,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:17,890 INFO L85 PathProgramCache]: Analyzing trace with hash -401498382, now seen corresponding path program 1 times [2023-12-21 14:12:17,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:17,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14082493] [2023-12-21 14:12:17,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:17,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:18,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:18,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:18,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14082493] [2023-12-21 14:12:18,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14082493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:18,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:18,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:18,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128486951] [2023-12-21 14:12:18,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:18,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:18,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:18,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:18,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:18,193 INFO L87 Difference]: Start difference. First operand 711 states and 905 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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) [2023-12-21 14:12:19,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:19,789 INFO L93 Difference]: Finished difference Result 1771 states and 2375 transitions. [2023-12-21 14:12:19,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:19,790 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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 [2023-12-21 14:12:19,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:19,792 INFO L225 Difference]: With dead ends: 1771 [2023-12-21 14:12:19,792 INFO L226 Difference]: Without dead ends: 1682 [2023-12-21 14:12:19,793 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 [2023-12-21 14:12:19,793 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 6902 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 2565 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6902 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 2794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 2565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:19,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6902 Valid, 3482 Invalid, 2794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 2565 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 14:12:19,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2023-12-21 14:12:19,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 716. [2023-12-21 14:12:19,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 694 states have (on average 1.3112391930835734) internal successors, (910), 715 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:19,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 910 transitions. [2023-12-21 14:12:19,803 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 910 transitions. Word has length 98 [2023-12-21 14:12:19,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:19,803 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 910 transitions. [2023-12-21 14:12:19,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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) [2023-12-21 14:12:19,803 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 910 transitions. [2023-12-21 14:12:19,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:19,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:19,804 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] [2023-12-21 14:12:19,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 14:12:19,804 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:19,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:19,805 INFO L85 PathProgramCache]: Analyzing trace with hash 726734154, now seen corresponding path program 1 times [2023-12-21 14:12:19,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:19,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699516049] [2023-12-21 14:12:19,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:19,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:19,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:19,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699516049] [2023-12-21 14:12:19,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699516049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:19,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:19,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:19,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127011214] [2023-12-21 14:12:19,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:19,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:19,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:19,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:19,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:19,994 INFO L87 Difference]: Start difference. First operand 716 states and 910 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) [2023-12-21 14:12:20,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:20,924 INFO L93 Difference]: Finished difference Result 1265 states and 1638 transitions. [2023-12-21 14:12:20,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:20,924 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 [2023-12-21 14:12:20,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:20,926 INFO L225 Difference]: With dead ends: 1265 [2023-12-21 14:12:20,926 INFO L226 Difference]: Without dead ends: 1189 [2023-12-21 14:12:20,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:20,927 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 3754 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 1892 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3754 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 1896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:20,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3754 Valid, 2553 Invalid, 1896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1892 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:20,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2023-12-21 14:12:20,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 715. [2023-12-21 14:12:20,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 693 states have (on average 1.3102453102453102) internal successors, (908), 714 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:20,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 908 transitions. [2023-12-21 14:12:20,934 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 908 transitions. Word has length 98 [2023-12-21 14:12:20,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:20,935 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 908 transitions. [2023-12-21 14:12:20,935 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) [2023-12-21 14:12:20,935 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 908 transitions. [2023-12-21 14:12:20,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:20,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:20,936 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] [2023-12-21 14:12:20,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 14:12:20,936 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:20,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:20,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1876538414, now seen corresponding path program 1 times [2023-12-21 14:12:20,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:20,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110762332] [2023-12-21 14:12:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:20,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:21,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:21,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:21,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110762332] [2023-12-21 14:12:21,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110762332] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:21,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:21,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:21,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932709484] [2023-12-21 14:12:21,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:21,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:21,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:21,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:21,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:21,253 INFO L87 Difference]: Start difference. First operand 715 states and 908 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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) [2023-12-21 14:12:22,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:22,856 INFO L93 Difference]: Finished difference Result 1770 states and 2372 transitions. [2023-12-21 14:12:22,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:22,856 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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 [2023-12-21 14:12:22,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:22,859 INFO L225 Difference]: With dead ends: 1770 [2023-12-21 14:12:22,859 INFO L226 Difference]: Without dead ends: 1681 [2023-12-21 14:12:22,859 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 [2023-12-21 14:12:22,860 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 6985 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 2530 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6985 SdHoareTripleChecker+Valid, 3446 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 2530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:22,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6985 Valid, 3446 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 2530 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 14:12:22,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2023-12-21 14:12:22,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 720. [2023-12-21 14:12:22,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 698 states have (on average 1.308022922636103) internal successors, (913), 719 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 913 transitions. [2023-12-21 14:12:22,867 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 913 transitions. Word has length 98 [2023-12-21 14:12:22,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:22,867 INFO L495 AbstractCegarLoop]: Abstraction has 720 states and 913 transitions. [2023-12-21 14:12:22,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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) [2023-12-21 14:12:22,868 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 913 transitions. [2023-12-21 14:12:22,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:22,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:22,868 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] [2023-12-21 14:12:22,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 14:12:22,869 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:22,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:22,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1291241216, now seen corresponding path program 1 times [2023-12-21 14:12:22,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:22,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543910889] [2023-12-21 14:12:22,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:22,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:23,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:23,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543910889] [2023-12-21 14:12:23,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543910889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:23,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:23,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:23,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652926478] [2023-12-21 14:12:23,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:23,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:23,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:23,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:23,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:23,030 INFO L87 Difference]: Start difference. First operand 720 states and 913 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) [2023-12-21 14:12:23,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:23,873 INFO L93 Difference]: Finished difference Result 1269 states and 1641 transitions. [2023-12-21 14:12:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:23,874 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 [2023-12-21 14:12:23,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:23,875 INFO L225 Difference]: With dead ends: 1269 [2023-12-21 14:12:23,875 INFO L226 Difference]: Without dead ends: 1193 [2023-12-21 14:12:23,876 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 [2023-12-21 14:12:23,876 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 2581 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2581 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:23,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2581 Valid, 2553 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1884 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:23,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2023-12-21 14:12:23,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 719. [2023-12-21 14:12:23,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 697 states have (on average 1.3070301291248207) internal successors, (911), 718 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:23,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 911 transitions. [2023-12-21 14:12:23,884 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 911 transitions. Word has length 98 [2023-12-21 14:12:23,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:23,885 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 911 transitions. [2023-12-21 14:12:23,885 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) [2023-12-21 14:12:23,885 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 911 transitions. [2023-12-21 14:12:23,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:23,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:23,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:12:23,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 14:12:23,886 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:23,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:23,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1960170496, now seen corresponding path program 1 times [2023-12-21 14:12:23,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:23,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78131146] [2023-12-21 14:12:23,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:23,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:24,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:24,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78131146] [2023-12-21 14:12:24,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78131146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:24,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:24,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:24,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322120463] [2023-12-21 14:12:24,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:24,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:24,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:24,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:24,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:24,053 INFO L87 Difference]: Start difference. First operand 719 states and 911 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) [2023-12-21 14:12:24,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:24,928 INFO L93 Difference]: Finished difference Result 1268 states and 1639 transitions. [2023-12-21 14:12:24,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:24,928 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 [2023-12-21 14:12:24,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:24,930 INFO L225 Difference]: With dead ends: 1268 [2023-12-21 14:12:24,930 INFO L226 Difference]: Without dead ends: 1192 [2023-12-21 14:12:24,931 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 [2023-12-21 14:12:24,931 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 3521 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3521 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:24,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3521 Valid, 2803 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:24,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2023-12-21 14:12:24,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 718. [2023-12-21 14:12:24,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 696 states have (on average 1.3060344827586208) internal successors, (909), 717 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:24,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 909 transitions. [2023-12-21 14:12:24,937 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 909 transitions. Word has length 98 [2023-12-21 14:12:24,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:24,937 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 909 transitions. [2023-12-21 14:12:24,937 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) [2023-12-21 14:12:24,937 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 909 transitions. [2023-12-21 14:12:24,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:24,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:24,938 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, 1, 1, 1, 1, 1] [2023-12-21 14:12:24,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 14:12:24,938 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:24,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:24,939 INFO L85 PathProgramCache]: Analyzing trace with hash 48150784, now seen corresponding path program 1 times [2023-12-21 14:12:24,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:24,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960202368] [2023-12-21 14:12:24,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:24,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:25,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:25,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:25,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960202368] [2023-12-21 14:12:25,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960202368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:25,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:25,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:25,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339794364] [2023-12-21 14:12:25,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:25,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:25,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:25,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:25,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:25,140 INFO L87 Difference]: Start difference. First operand 718 states and 909 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) [2023-12-21 14:12:26,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:26,063 INFO L93 Difference]: Finished difference Result 1266 states and 1636 transitions. [2023-12-21 14:12:26,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:26,063 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 [2023-12-21 14:12:26,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:26,065 INFO L225 Difference]: With dead ends: 1266 [2023-12-21 14:12:26,065 INFO L226 Difference]: Without dead ends: 1190 [2023-12-21 14:12:26,066 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 [2023-12-21 14:12:26,066 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 2464 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2464 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 2020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:26,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2464 Valid, 2718 Invalid, 2020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:26,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2023-12-21 14:12:26,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 717. [2023-12-21 14:12:26,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 695 states have (on average 1.3050359712230215) internal successors, (907), 716 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:26,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 907 transitions. [2023-12-21 14:12:26,072 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 907 transitions. Word has length 98 [2023-12-21 14:12:26,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:26,072 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 907 transitions. [2023-12-21 14:12:26,072 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) [2023-12-21 14:12:26,073 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 907 transitions. [2023-12-21 14:12:26,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:26,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:26,073 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] [2023-12-21 14:12:26,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 14:12:26,074 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:26,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:26,074 INFO L85 PathProgramCache]: Analyzing trace with hash -567213966, now seen corresponding path program 1 times [2023-12-21 14:12:26,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:26,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754406958] [2023-12-21 14:12:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:26,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:26,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:26,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:26,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754406958] [2023-12-21 14:12:26,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754406958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:26,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:26,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:12:26,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259203986] [2023-12-21 14:12:26,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:26,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:12:26,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:26,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:12:26,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:12:26,493 INFO L87 Difference]: Start difference. First operand 717 states and 907 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 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) [2023-12-21 14:12:27,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:27,135 INFO L93 Difference]: Finished difference Result 1478 states and 1955 transitions. [2023-12-21 14:12:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:12:27,135 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 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 [2023-12-21 14:12:27,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:27,137 INFO L225 Difference]: With dead ends: 1478 [2023-12-21 14:12:27,137 INFO L226 Difference]: Without dead ends: 1385 [2023-12-21 14:12:27,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-21 14:12:27,138 INFO L413 NwaCegarLoop]: 1109 mSDtfsCounter, 5803 mSDsluCounter, 5258 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5803 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:27,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5803 Valid, 6367 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:12:27,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2023-12-21 14:12:27,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 699. [2023-12-21 14:12:27,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 677 states have (on average 1.3028064992614476) internal successors, (882), 698 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 882 transitions. [2023-12-21 14:12:27,146 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 882 transitions. Word has length 98 [2023-12-21 14:12:27,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:27,146 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 882 transitions. [2023-12-21 14:12:27,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 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) [2023-12-21 14:12:27,146 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 882 transitions. [2023-12-21 14:12:27,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:27,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:27,147 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] [2023-12-21 14:12:27,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 14:12:27,147 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:27,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:27,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1126896167, now seen corresponding path program 1 times [2023-12-21 14:12:27,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:27,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667904222] [2023-12-21 14:12:27,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:27,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:27,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:27,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:27,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667904222] [2023-12-21 14:12:27,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667904222] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:27,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:27,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:27,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077077017] [2023-12-21 14:12:27,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:27,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:27,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:27,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:27,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:27,332 INFO L87 Difference]: Start difference. First operand 699 states and 882 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) [2023-12-21 14:12:28,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:28,320 INFO L93 Difference]: Finished difference Result 1274 states and 1659 transitions. [2023-12-21 14:12:28,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:28,320 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 [2023-12-21 14:12:28,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:28,322 INFO L225 Difference]: With dead ends: 1274 [2023-12-21 14:12:28,322 INFO L226 Difference]: Without dead ends: 1189 [2023-12-21 14:12:28,323 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 [2023-12-21 14:12:28,323 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 2176 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2176 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 2282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:28,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2176 Valid, 3141 Invalid, 2282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:12:28,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2023-12-21 14:12:28,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 694. [2023-12-21 14:12:28,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 672 states have (on average 1.3035714285714286) internal successors, (876), 693 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:28,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 876 transitions. [2023-12-21 14:12:28,329 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 876 transitions. Word has length 98 [2023-12-21 14:12:28,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:28,329 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 876 transitions. [2023-12-21 14:12:28,329 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) [2023-12-21 14:12:28,329 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 876 transitions. [2023-12-21 14:12:28,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:28,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:28,330 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] [2023-12-21 14:12:28,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 14:12:28,330 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:28,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:28,331 INFO L85 PathProgramCache]: Analyzing trace with hash 919604050, now seen corresponding path program 1 times [2023-12-21 14:12:28,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:28,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500156112] [2023-12-21 14:12:28,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:28,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:28,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:28,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:28,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500156112] [2023-12-21 14:12:28,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500156112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:28,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:28,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:28,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46861207] [2023-12-21 14:12:28,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:28,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:28,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:28,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:28,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:28,681 INFO L87 Difference]: Start difference. First operand 694 states and 876 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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) [2023-12-21 14:12:30,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:30,250 INFO L93 Difference]: Finished difference Result 1748 states and 2339 transitions. [2023-12-21 14:12:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:30,250 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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 [2023-12-21 14:12:30,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:30,253 INFO L225 Difference]: With dead ends: 1748 [2023-12-21 14:12:30,253 INFO L226 Difference]: Without dead ends: 1659 [2023-12-21 14:12:30,254 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 [2023-12-21 14:12:30,254 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 6847 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 2455 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6847 SdHoareTripleChecker+Valid, 3372 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 2455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:30,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6847 Valid, 3372 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 2455 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 14:12:30,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2023-12-21 14:12:30,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 699. [2023-12-21 14:12:30,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 677 states have (on average 1.3013293943870015) internal successors, (881), 698 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:30,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 881 transitions. [2023-12-21 14:12:30,261 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 881 transitions. Word has length 98 [2023-12-21 14:12:30,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:30,261 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 881 transitions. [2023-12-21 14:12:30,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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) [2023-12-21 14:12:30,262 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 881 transitions. [2023-12-21 14:12:30,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:30,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:30,262 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] [2023-12-21 14:12:30,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-21 14:12:30,263 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:30,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:30,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1912626094, now seen corresponding path program 1 times [2023-12-21 14:12:30,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:30,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677229274] [2023-12-21 14:12:30,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:30,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:30,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:30,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677229274] [2023-12-21 14:12:30,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677229274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:30,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:30,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:30,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831664300] [2023-12-21 14:12:30,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:30,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:30,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:30,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:30,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:30,454 INFO L87 Difference]: Start difference. First operand 699 states and 881 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) [2023-12-21 14:12:31,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:31,358 INFO L93 Difference]: Finished difference Result 1278 states and 1661 transitions. [2023-12-21 14:12:31,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:31,359 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 [2023-12-21 14:12:31,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:31,360 INFO L225 Difference]: With dead ends: 1278 [2023-12-21 14:12:31,360 INFO L226 Difference]: Without dead ends: 1189 [2023-12-21 14:12:31,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:31,361 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 3546 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 1910 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3546 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:31,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3546 Valid, 2748 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1910 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:31,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2023-12-21 14:12:31,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 699. [2023-12-21 14:12:31,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 677 states have (on average 1.2998522895125555) internal successors, (880), 698 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 880 transitions. [2023-12-21 14:12:31,367 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 880 transitions. Word has length 98 [2023-12-21 14:12:31,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:31,367 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 880 transitions. [2023-12-21 14:12:31,367 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) [2023-12-21 14:12:31,367 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 880 transitions. [2023-12-21 14:12:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:31,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:31,368 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] [2023-12-21 14:12:31,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-21 14:12:31,368 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:31,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:31,369 INFO L85 PathProgramCache]: Analyzing trace with hash 418514290, now seen corresponding path program 1 times [2023-12-21 14:12:31,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:31,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045385771] [2023-12-21 14:12:31,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:31,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:31,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:31,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:31,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045385771] [2023-12-21 14:12:31,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045385771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:31,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:31,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:31,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944804209] [2023-12-21 14:12:31,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:31,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:31,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:31,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:31,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:31,666 INFO L87 Difference]: Start difference. First operand 699 states and 880 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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) [2023-12-21 14:12:33,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:33,424 INFO L93 Difference]: Finished difference Result 1907 states and 2557 transitions. [2023-12-21 14:12:33,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:33,424 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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 [2023-12-21 14:12:33,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:33,427 INFO L225 Difference]: With dead ends: 1907 [2023-12-21 14:12:33,427 INFO L226 Difference]: Without dead ends: 1794 [2023-12-21 14:12:33,427 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 [2023-12-21 14:12:33,428 INFO L413 NwaCegarLoop]: 906 mSDtfsCounter, 6476 mSDsluCounter, 3439 mSDsCounter, 0 mSdLazyCounter, 3077 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6476 SdHoareTripleChecker+Valid, 4345 SdHoareTripleChecker+Invalid, 3274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 3077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:33,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6476 Valid, 4345 Invalid, 3274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 3077 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 14:12:33,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2023-12-21 14:12:33,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 704. [2023-12-21 14:12:33,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 682 states have (on average 1.2976539589442815) internal successors, (885), 703 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:33,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 885 transitions. [2023-12-21 14:12:33,436 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 885 transitions. Word has length 98 [2023-12-21 14:12:33,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:33,436 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 885 transitions. [2023-12-21 14:12:33,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 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) [2023-12-21 14:12:33,436 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 885 transitions. [2023-12-21 14:12:33,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:33,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:33,437 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] [2023-12-21 14:12:33,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-21 14:12:33,437 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:33,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:33,438 INFO L85 PathProgramCache]: Analyzing trace with hash 729259016, now seen corresponding path program 1 times [2023-12-21 14:12:33,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:33,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476940641] [2023-12-21 14:12:33,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:33,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:33,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:33,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:33,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476940641] [2023-12-21 14:12:33,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476940641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:33,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:33,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:33,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982681895] [2023-12-21 14:12:33,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:33,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:33,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:33,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:33,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:33,631 INFO L87 Difference]: Start difference. First operand 704 states and 885 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:34,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:34,517 INFO L93 Difference]: Finished difference Result 1246 states and 1603 transitions. [2023-12-21 14:12:34,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:34,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:34,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:34,519 INFO L225 Difference]: With dead ends: 1246 [2023-12-21 14:12:34,519 INFO L226 Difference]: Without dead ends: 1168 [2023-12-21 14:12:34,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:34,519 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 3577 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3577 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:34,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3577 Valid, 2534 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:34,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2023-12-21 14:12:34,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 704. [2023-12-21 14:12:34,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 682 states have (on average 1.2961876832844574) internal successors, (884), 703 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:34,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 884 transitions. [2023-12-21 14:12:34,525 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 884 transitions. Word has length 99 [2023-12-21 14:12:34,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:34,525 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 884 transitions. [2023-12-21 14:12:34,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:34,525 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 884 transitions. [2023-12-21 14:12:34,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:34,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:34,526 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] [2023-12-21 14:12:34,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-21 14:12:34,526 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)] === [2023-12-21 14:12:34,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:34,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1775150408, now seen corresponding path program 1 times [2023-12-21 14:12:34,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:34,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398884927] [2023-12-21 14:12:34,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:34,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:34,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:34,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:34,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398884927] [2023-12-21 14:12:34,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398884927] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:34,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:34,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:34,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876595987] [2023-12-21 14:12:34,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:34,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:34,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:34,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:34,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:34,710 INFO L87 Difference]: Start difference. First operand 704 states and 884 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:35,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:35,524 INFO L93 Difference]: Finished difference Result 1246 states and 1602 transitions. [2023-12-21 14:12:35,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:35,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:35,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:35,526 INFO L225 Difference]: With dead ends: 1246 [2023-12-21 14:12:35,527 INFO L226 Difference]: Without dead ends: 1168 [2023-12-21 14:12:35,527 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 [2023-12-21 14:12:35,527 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 2470 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:35,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2470 Valid, 2538 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:35,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2023-12-21 14:12:35,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 704. [2023-12-21 14:12:35,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 682 states have (on average 1.2947214076246334) internal successors, (883), 703 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:35,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 883 transitions. [2023-12-21 14:12:35,533 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 883 transitions. Word has length 99 [2023-12-21 14:12:35,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:35,533 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 883 transitions. [2023-12-21 14:12:35,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 883 transitions. [2023-12-21 14:12:35,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:35,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:35,534 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] [2023-12-21 14:12:35,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-21 14:12:35,534 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:35,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:35,534 INFO L85 PathProgramCache]: Analyzing trace with hash -8770564, now seen corresponding path program 1 times [2023-12-21 14:12:35,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:35,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937155712] [2023-12-21 14:12:35,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:35,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:35,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:35,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:35,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937155712] [2023-12-21 14:12:35,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937155712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:35,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:35,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:35,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422355251] [2023-12-21 14:12:35,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:35,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:35,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:35,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:35,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:35,705 INFO L87 Difference]: Start difference. First operand 704 states and 883 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:36,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:36,814 INFO L93 Difference]: Finished difference Result 1333 states and 1725 transitions. [2023-12-21 14:12:36,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:36,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:36,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:36,817 INFO L225 Difference]: With dead ends: 1333 [2023-12-21 14:12:36,817 INFO L226 Difference]: Without dead ends: 1220 [2023-12-21 14:12:36,817 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 [2023-12-21 14:12:36,817 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 2135 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 3337 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:36,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2135 Valid, 3337 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:12:36,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2023-12-21 14:12:36,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 699. [2023-12-21 14:12:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 677 states have (on average 1.2954209748892171) internal successors, (877), 698 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:36,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 877 transitions. [2023-12-21 14:12:36,823 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 877 transitions. Word has length 99 [2023-12-21 14:12:36,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:36,823 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 877 transitions. [2023-12-21 14:12:36,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:36,823 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 877 transitions. [2023-12-21 14:12:36,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:36,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:36,824 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, 1, 1] [2023-12-21 14:12:36,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-21 14:12:36,825 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:36,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:36,825 INFO L85 PathProgramCache]: Analyzing trace with hash -371844056, now seen corresponding path program 1 times [2023-12-21 14:12:36,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:36,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260613460] [2023-12-21 14:12:36,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:36,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:36,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:36,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260613460] [2023-12-21 14:12:36,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260613460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:36,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:36,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:36,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986529585] [2023-12-21 14:12:36,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:36,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:36,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:36,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:36,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:36,981 INFO L87 Difference]: Start difference. First operand 699 states and 877 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:37,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:37,863 INFO L93 Difference]: Finished difference Result 1241 states and 1595 transitions. [2023-12-21 14:12:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:37,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:37,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:37,867 INFO L225 Difference]: With dead ends: 1241 [2023-12-21 14:12:37,867 INFO L226 Difference]: Without dead ends: 1163 [2023-12-21 14:12:37,867 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 [2023-12-21 14:12:37,867 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 3370 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3370 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:37,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3370 Valid, 2740 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2012 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2023-12-21 14:12:37,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 699. [2023-12-21 14:12:37,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 677 states have (on average 1.293943870014771) internal successors, (876), 698 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:37,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 876 transitions. [2023-12-21 14:12:37,873 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 876 transitions. Word has length 99 [2023-12-21 14:12:37,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:37,873 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 876 transitions. [2023-12-21 14:12:37,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:37,873 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 876 transitions. [2023-12-21 14:12:37,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:37,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:37,874 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] [2023-12-21 14:12:37,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-21 14:12:37,874 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:37,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:37,875 INFO L85 PathProgramCache]: Analyzing trace with hash 30970824, now seen corresponding path program 1 times [2023-12-21 14:12:37,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:37,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393798158] [2023-12-21 14:12:37,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:37,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:38,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:38,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:38,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393798158] [2023-12-21 14:12:38,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393798158] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:38,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:38,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:38,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993380857] [2023-12-21 14:12:38,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:38,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:38,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:38,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:38,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:38,047 INFO L87 Difference]: Start difference. First operand 699 states and 876 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:38,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:38,911 INFO L93 Difference]: Finished difference Result 1241 states and 1594 transitions. [2023-12-21 14:12:38,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:38,911 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:38,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:38,913 INFO L225 Difference]: With dead ends: 1241 [2023-12-21 14:12:38,913 INFO L226 Difference]: Without dead ends: 1163 [2023-12-21 14:12:38,913 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 [2023-12-21 14:12:38,913 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 2365 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2365 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:38,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2365 Valid, 2695 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:38,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2023-12-21 14:12:38,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 699. [2023-12-21 14:12:38,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 677 states have (on average 1.292466765140325) internal successors, (875), 698 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:38,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 875 transitions. [2023-12-21 14:12:38,919 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 875 transitions. Word has length 99 [2023-12-21 14:12:38,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:38,919 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 875 transitions. [2023-12-21 14:12:38,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:38,919 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 875 transitions. [2023-12-21 14:12:38,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:38,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:38,920 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] [2023-12-21 14:12:38,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-21 14:12:38,920 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:38,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:38,921 INFO L85 PathProgramCache]: Analyzing trace with hash -169539486, now seen corresponding path program 1 times [2023-12-21 14:12:38,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:38,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960939099] [2023-12-21 14:12:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:38,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:39,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:39,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:39,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960939099] [2023-12-21 14:12:39,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960939099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:39,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:39,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:39,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790742758] [2023-12-21 14:12:39,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:39,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:39,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:39,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:39,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:39,087 INFO L87 Difference]: Start difference. First operand 699 states and 875 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:40,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:40,044 INFO L93 Difference]: Finished difference Result 1278 states and 1653 transitions. [2023-12-21 14:12:40,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:40,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:40,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:40,046 INFO L225 Difference]: With dead ends: 1278 [2023-12-21 14:12:40,046 INFO L226 Difference]: Without dead ends: 1189 [2023-12-21 14:12:40,046 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 [2023-12-21 14:12:40,047 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 2126 mSDsluCounter, 2446 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2126 SdHoareTripleChecker+Valid, 3246 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:40,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2126 Valid, 3246 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:40,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2023-12-21 14:12:40,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 694. [2023-12-21 14:12:40,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 672 states have (on average 1.2931547619047619) internal successors, (869), 693 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:40,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 869 transitions. [2023-12-21 14:12:40,052 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 869 transitions. Word has length 99 [2023-12-21 14:12:40,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:40,052 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 869 transitions. [2023-12-21 14:12:40,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:40,053 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 869 transitions. [2023-12-21 14:12:40,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:40,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:40,053 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] [2023-12-21 14:12:40,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-21 14:12:40,054 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:40,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:40,054 INFO L85 PathProgramCache]: Analyzing trace with hash 158799880, now seen corresponding path program 1 times [2023-12-21 14:12:40,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:40,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307406545] [2023-12-21 14:12:40,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:40,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:40,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:40,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:40,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307406545] [2023-12-21 14:12:40,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307406545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:40,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:40,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:40,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047327156] [2023-12-21 14:12:40,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:40,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:40,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:40,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:40,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:40,212 INFO L87 Difference]: Start difference. First operand 694 states and 869 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:41,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:41,106 INFO L93 Difference]: Finished difference Result 1236 states and 1586 transitions. [2023-12-21 14:12:41,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:41,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:41,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:41,108 INFO L225 Difference]: With dead ends: 1236 [2023-12-21 14:12:41,108 INFO L226 Difference]: Without dead ends: 1158 [2023-12-21 14:12:41,109 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 [2023-12-21 14:12:41,109 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 2342 mSDsluCounter, 2102 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2342 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:41,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2342 Valid, 2779 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:41,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-12-21 14:12:41,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 694. [2023-12-21 14:12:41,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 672 states have (on average 1.2916666666666667) internal successors, (868), 693 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:41,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 868 transitions. [2023-12-21 14:12:41,115 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 868 transitions. Word has length 99 [2023-12-21 14:12:41,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:41,115 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 868 transitions. [2023-12-21 14:12:41,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:41,115 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 868 transitions. [2023-12-21 14:12:41,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:41,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:41,116 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] [2023-12-21 14:12:41,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-21 14:12:41,116 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:41,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:41,117 INFO L85 PathProgramCache]: Analyzing trace with hash 599423240, now seen corresponding path program 1 times [2023-12-21 14:12:41,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:41,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768546225] [2023-12-21 14:12:41,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:41,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:41,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:41,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:41,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768546225] [2023-12-21 14:12:41,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768546225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:41,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:41,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:41,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601268370] [2023-12-21 14:12:41,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:41,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:41,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:41,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:41,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:41,276 INFO L87 Difference]: Start difference. First operand 694 states and 868 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:42,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:42,222 INFO L93 Difference]: Finished difference Result 1236 states and 1585 transitions. [2023-12-21 14:12:42,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:42,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:42,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:42,223 INFO L225 Difference]: With dead ends: 1236 [2023-12-21 14:12:42,223 INFO L226 Difference]: Without dead ends: 1158 [2023-12-21 14:12:42,224 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 [2023-12-21 14:12:42,224 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 3213 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:42,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 2948 Invalid, 2166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:42,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-12-21 14:12:42,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 694. [2023-12-21 14:12:42,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 672 states have (on average 1.2901785714285714) internal successors, (867), 693 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:42,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 867 transitions. [2023-12-21 14:12:42,230 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 867 transitions. Word has length 99 [2023-12-21 14:12:42,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:42,230 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 867 transitions. [2023-12-21 14:12:42,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:42,230 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 867 transitions. [2023-12-21 14:12:42,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:42,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:42,231 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] [2023-12-21 14:12:42,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-21 14:12:42,231 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:42,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:42,232 INFO L85 PathProgramCache]: Analyzing trace with hash 947272115, now seen corresponding path program 1 times [2023-12-21 14:12:42,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:42,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963550134] [2023-12-21 14:12:42,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:42,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:42,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:42,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:42,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963550134] [2023-12-21 14:12:42,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963550134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:42,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:42,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:42,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066214297] [2023-12-21 14:12:42,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:42,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:42,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:42,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:42,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:42,389 INFO L87 Difference]: Start difference. First operand 694 states and 867 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:43,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:43,343 INFO L93 Difference]: Finished difference Result 1278 states and 1649 transitions. [2023-12-21 14:12:43,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:43,343 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:43,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:43,344 INFO L225 Difference]: With dead ends: 1278 [2023-12-21 14:12:43,344 INFO L226 Difference]: Without dead ends: 1189 [2023-12-21 14:12:43,345 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 [2023-12-21 14:12:43,345 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 2092 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:43,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 3298 Invalid, 2312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:43,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2023-12-21 14:12:43,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 689. [2023-12-21 14:12:43,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 667 states have (on average 1.2908545727136431) internal successors, (861), 688 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:43,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 861 transitions. [2023-12-21 14:12:43,351 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 861 transitions. Word has length 99 [2023-12-21 14:12:43,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:43,351 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 861 transitions. [2023-12-21 14:12:43,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:43,351 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 861 transitions. [2023-12-21 14:12:43,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:43,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:43,352 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] [2023-12-21 14:12:43,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-21 14:12:43,352 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:43,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:43,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1295915208, now seen corresponding path program 1 times [2023-12-21 14:12:43,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:43,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397239087] [2023-12-21 14:12:43,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:43,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:43,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:43,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:43,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397239087] [2023-12-21 14:12:43,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397239087] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:43,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:43,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:43,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334955021] [2023-12-21 14:12:43,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:43,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:43,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:43,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:43,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:43,517 INFO L87 Difference]: Start difference. First operand 689 states and 861 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:44,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:44,373 INFO L93 Difference]: Finished difference Result 1231 states and 1577 transitions. [2023-12-21 14:12:44,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:44,373 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:44,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:44,374 INFO L225 Difference]: With dead ends: 1231 [2023-12-21 14:12:44,374 INFO L226 Difference]: Without dead ends: 1153 [2023-12-21 14:12:44,375 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 [2023-12-21 14:12:44,375 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 3367 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3367 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:44,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3367 Valid, 2785 Invalid, 1989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:44,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2023-12-21 14:12:44,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 689. [2023-12-21 14:12:44,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 667 states have (on average 1.2893553223388305) internal successors, (860), 688 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 860 transitions. [2023-12-21 14:12:44,381 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 860 transitions. Word has length 99 [2023-12-21 14:12:44,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:44,381 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 860 transitions. [2023-12-21 14:12:44,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:44,381 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 860 transitions. [2023-12-21 14:12:44,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:44,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:44,382 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] [2023-12-21 14:12:44,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-21 14:12:44,382 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:44,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:44,382 INFO L85 PathProgramCache]: Analyzing trace with hash 937344712, now seen corresponding path program 1 times [2023-12-21 14:12:44,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:44,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94028099] [2023-12-21 14:12:44,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:44,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:44,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:44,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:44,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94028099] [2023-12-21 14:12:44,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94028099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:44,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:44,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:44,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981417935] [2023-12-21 14:12:44,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:44,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:44,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:44,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:44,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:44,561 INFO L87 Difference]: Start difference. First operand 689 states and 860 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:45,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:45,515 INFO L93 Difference]: Finished difference Result 1231 states and 1575 transitions. [2023-12-21 14:12:45,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:45,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:45,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:45,516 INFO L225 Difference]: With dead ends: 1231 [2023-12-21 14:12:45,516 INFO L226 Difference]: Without dead ends: 1153 [2023-12-21 14:12:45,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:45,517 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 3281 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3281 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 2024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:45,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3281 Valid, 2814 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2021 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:45,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2023-12-21 14:12:45,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 689. [2023-12-21 14:12:45,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 667 states have (on average 1.287856071964018) internal successors, (859), 688 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:45,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 859 transitions. [2023-12-21 14:12:45,532 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 859 transitions. Word has length 99 [2023-12-21 14:12:45,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:45,532 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 859 transitions. [2023-12-21 14:12:45,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:45,532 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 859 transitions. [2023-12-21 14:12:45,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:45,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:45,533 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] [2023-12-21 14:12:45,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-21 14:12:45,533 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:45,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:45,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1357365064, now seen corresponding path program 1 times [2023-12-21 14:12:45,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:45,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942987485] [2023-12-21 14:12:45,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:45,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:45,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:45,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:45,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942987485] [2023-12-21 14:12:45,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942987485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:45,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:45,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:45,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505873385] [2023-12-21 14:12:45,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:45,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:45,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:45,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:45,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:45,702 INFO L87 Difference]: Start difference. First operand 689 states and 859 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:46,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:46,559 INFO L93 Difference]: Finished difference Result 1231 states and 1574 transitions. [2023-12-21 14:12:46,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:46,559 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:46,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:46,561 INFO L225 Difference]: With dead ends: 1231 [2023-12-21 14:12:46,561 INFO L226 Difference]: Without dead ends: 1153 [2023-12-21 14:12:46,561 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 [2023-12-21 14:12:46,562 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 2302 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2302 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:46,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2302 Valid, 2776 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:46,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2023-12-21 14:12:46,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 689. [2023-12-21 14:12:46,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 667 states have (on average 1.2863568215892054) internal successors, (858), 688 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:46,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 858 transitions. [2023-12-21 14:12:46,568 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 858 transitions. Word has length 99 [2023-12-21 14:12:46,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:46,568 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 858 transitions. [2023-12-21 14:12:46,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:46,568 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 858 transitions. [2023-12-21 14:12:46,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:46,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:46,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:12:46,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-21 14:12:46,569 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:46,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:46,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1637896917, now seen corresponding path program 1 times [2023-12-21 14:12:46,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:46,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140709796] [2023-12-21 14:12:46,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:46,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:46,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:46,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:46,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140709796] [2023-12-21 14:12:46,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140709796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:46,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:46,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:46,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574366059] [2023-12-21 14:12:46,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:46,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:46,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:46,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:46,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:46,746 INFO L87 Difference]: Start difference. First operand 689 states and 858 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:47,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:47,589 INFO L93 Difference]: Finished difference Result 1229 states and 1570 transitions. [2023-12-21 14:12:47,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:47,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:47,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:47,591 INFO L225 Difference]: With dead ends: 1229 [2023-12-21 14:12:47,591 INFO L226 Difference]: Without dead ends: 1153 [2023-12-21 14:12:47,591 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 [2023-12-21 14:12:47,592 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 3468 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3468 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:47,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3468 Valid, 2613 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:47,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2023-12-21 14:12:47,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 689. [2023-12-21 14:12:47,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 667 states have (on average 1.2848575712143928) internal successors, (857), 688 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:47,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 857 transitions. [2023-12-21 14:12:47,597 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 857 transitions. Word has length 99 [2023-12-21 14:12:47,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:47,597 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 857 transitions. [2023-12-21 14:12:47,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:47,597 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 857 transitions. [2023-12-21 14:12:47,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:47,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:47,598 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] [2023-12-21 14:12:47,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-21 14:12:47,598 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:47,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:47,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1141539111, now seen corresponding path program 1 times [2023-12-21 14:12:47,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:47,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645847166] [2023-12-21 14:12:47,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:47,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:47,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:47,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:47,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645847166] [2023-12-21 14:12:47,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645847166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:47,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:47,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:47,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989926937] [2023-12-21 14:12:47,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:47,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:47,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:47,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:47,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:47,763 INFO L87 Difference]: Start difference. First operand 689 states and 857 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:48,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:48,706 INFO L93 Difference]: Finished difference Result 1278 states and 1643 transitions. [2023-12-21 14:12:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:48,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:48,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:48,707 INFO L225 Difference]: With dead ends: 1278 [2023-12-21 14:12:48,707 INFO L226 Difference]: Without dead ends: 1189 [2023-12-21 14:12:48,708 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 [2023-12-21 14:12:48,708 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 3201 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3201 SdHoareTripleChecker+Valid, 3136 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:48,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3201 Valid, 3136 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:48,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2023-12-21 14:12:48,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 684. [2023-12-21 14:12:48,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 662 states have (on average 1.2854984894259818) internal successors, (851), 683 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) [2023-12-21 14:12:48,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 851 transitions. [2023-12-21 14:12:48,713 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 851 transitions. Word has length 99 [2023-12-21 14:12:48,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:48,714 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 851 transitions. [2023-12-21 14:12:48,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:48,714 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 851 transitions. [2023-12-21 14:12:48,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:48,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:48,715 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, 1, 1, 1, 1] [2023-12-21 14:12:48,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-21 14:12:48,715 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:48,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:48,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1058084577, now seen corresponding path program 1 times [2023-12-21 14:12:48,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:48,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066354112] [2023-12-21 14:12:48,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:48,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:48,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:48,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:48,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066354112] [2023-12-21 14:12:48,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066354112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:48,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:48,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:48,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656063220] [2023-12-21 14:12:48,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:48,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:48,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:48,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:48,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:48,887 INFO L87 Difference]: Start difference. First operand 684 states and 851 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:49,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:49,820 INFO L93 Difference]: Finished difference Result 1313 states and 1692 transitions. [2023-12-21 14:12:49,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:49,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:49,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:49,821 INFO L225 Difference]: With dead ends: 1313 [2023-12-21 14:12:49,821 INFO L226 Difference]: Without dead ends: 1200 [2023-12-21 14:12:49,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:12:49,822 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 2049 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 3497 SdHoareTripleChecker+Invalid, 2268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:49,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 3497 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:49,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2023-12-21 14:12:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 679. [2023-12-21 14:12:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 657 states have (on average 1.2861491628614916) internal successors, (845), 678 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) [2023-12-21 14:12:49,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 845 transitions. [2023-12-21 14:12:49,828 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 845 transitions. Word has length 99 [2023-12-21 14:12:49,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:49,828 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 845 transitions. [2023-12-21 14:12:49,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:49,828 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 845 transitions. [2023-12-21 14:12:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:49,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:49,829 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] [2023-12-21 14:12:49,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-21 14:12:49,829 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:49,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:49,830 INFO L85 PathProgramCache]: Analyzing trace with hash 292512424, now seen corresponding path program 1 times [2023-12-21 14:12:49,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:49,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425801715] [2023-12-21 14:12:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:49,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:50,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:50,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425801715] [2023-12-21 14:12:50,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425801715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:50,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:50,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:50,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781471247] [2023-12-21 14:12:50,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:50,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:50,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:50,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:50,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:50,013 INFO L87 Difference]: Start difference. First operand 679 states and 845 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:50,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:50,853 INFO L93 Difference]: Finished difference Result 1221 states and 1559 transitions. [2023-12-21 14:12:50,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:50,853 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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 [2023-12-21 14:12:50,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:50,854 INFO L225 Difference]: With dead ends: 1221 [2023-12-21 14:12:50,854 INFO L226 Difference]: Without dead ends: 1143 [2023-12-21 14:12:50,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:50,855 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 3423 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3423 SdHoareTripleChecker+Valid, 2655 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:50,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3423 Valid, 2655 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:50,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2023-12-21 14:12:50,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 679. [2023-12-21 14:12:50,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 657 states have (on average 1.2846270928462709) internal successors, (844), 678 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) [2023-12-21 14:12:50,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 844 transitions. [2023-12-21 14:12:50,860 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 844 transitions. Word has length 99 [2023-12-21 14:12:50,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:50,860 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 844 transitions. [2023-12-21 14:12:50,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 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) [2023-12-21 14:12:50,861 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 844 transitions. [2023-12-21 14:12:50,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:50,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:50,861 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] [2023-12-21 14:12:50,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-21 14:12:50,861 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:50,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:50,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1459749737, now seen corresponding path program 1 times [2023-12-21 14:12:50,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:50,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578175438] [2023-12-21 14:12:50,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:50,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:51,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:51,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578175438] [2023-12-21 14:12:51,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578175438] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:51,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:51,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:51,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251114910] [2023-12-21 14:12:51,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:51,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:51,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:51,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:51,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:51,055 INFO L87 Difference]: Start difference. First operand 679 states and 844 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) [2023-12-21 14:12:51,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:51,990 INFO L93 Difference]: Finished difference Result 1224 states and 1561 transitions. [2023-12-21 14:12:51,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:51,990 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 [2023-12-21 14:12:51,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:51,991 INFO L225 Difference]: With dead ends: 1224 [2023-12-21 14:12:51,992 INFO L226 Difference]: Without dead ends: 1143 [2023-12-21 14:12:51,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:51,992 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 3426 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3426 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 1828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:51,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3426 Valid, 2647 Invalid, 1828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:51,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2023-12-21 14:12:51,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 679. [2023-12-21 14:12:51,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 657 states have (on average 1.2831050228310503) internal successors, (843), 678 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) [2023-12-21 14:12:51,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 843 transitions. [2023-12-21 14:12:51,997 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 843 transitions. Word has length 100 [2023-12-21 14:12:51,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:51,997 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 843 transitions. [2023-12-21 14:12:51,997 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) [2023-12-21 14:12:51,997 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 843 transitions. [2023-12-21 14:12:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:51,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:51,998 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] [2023-12-21 14:12:51,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-21 14:12:51,998 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:51,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:51,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1106978857, now seen corresponding path program 1 times [2023-12-21 14:12:51,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:51,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970569262] [2023-12-21 14:12:51,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:51,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:52,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:52,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970569262] [2023-12-21 14:12:52,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970569262] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:52,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:52,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:52,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875304689] [2023-12-21 14:12:52,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:52,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:52,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:52,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:52,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:52,171 INFO L87 Difference]: Start difference. First operand 679 states and 843 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) [2023-12-21 14:12:53,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:53,068 INFO L93 Difference]: Finished difference Result 1278 states and 1638 transitions. [2023-12-21 14:12:53,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:53,069 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 [2023-12-21 14:12:53,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:53,070 INFO L225 Difference]: With dead ends: 1278 [2023-12-21 14:12:53,070 INFO L226 Difference]: Without dead ends: 1184 [2023-12-21 14:12:53,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:53,071 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 3225 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3225 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:53,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3225 Valid, 3083 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:53,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2023-12-21 14:12:53,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 679. [2023-12-21 14:12:53,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 657 states have (on average 1.2815829528158296) internal successors, (842), 678 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) [2023-12-21 14:12:53,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 842 transitions. [2023-12-21 14:12:53,076 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 842 transitions. Word has length 100 [2023-12-21 14:12:53,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:53,076 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 842 transitions. [2023-12-21 14:12:53,076 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) [2023-12-21 14:12:53,076 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 842 transitions. [2023-12-21 14:12:53,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:53,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:53,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:12:53,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-21 14:12:53,077 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:53,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:53,077 INFO L85 PathProgramCache]: Analyzing trace with hash 235319639, now seen corresponding path program 1 times [2023-12-21 14:12:53,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:53,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564700281] [2023-12-21 14:12:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:53,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:53,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:53,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564700281] [2023-12-21 14:12:53,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564700281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:53,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:53,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:53,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716344746] [2023-12-21 14:12:53,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:53,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:53,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:53,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:53,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:53,357 INFO L87 Difference]: Start difference. First operand 679 states and 842 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) [2023-12-21 14:12:54,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:54,938 INFO L93 Difference]: Finished difference Result 1899 states and 2521 transitions. [2023-12-21 14:12:54,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:54,938 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 [2023-12-21 14:12:54,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:54,940 INFO L225 Difference]: With dead ends: 1899 [2023-12-21 14:12:54,940 INFO L226 Difference]: Without dead ends: 1780 [2023-12-21 14:12:54,941 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 [2023-12-21 14:12:54,941 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 6285 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6285 SdHoareTripleChecker+Valid, 4070 SdHoareTripleChecker+Invalid, 2939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:54,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6285 Valid, 4070 Invalid, 2939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 2749 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 14:12:54,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2023-12-21 14:12:54,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 684. [2023-12-21 14:12:54,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 662 states have (on average 1.2794561933534743) internal successors, (847), 683 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) [2023-12-21 14:12:54,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 847 transitions. [2023-12-21 14:12:54,948 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 847 transitions. Word has length 100 [2023-12-21 14:12:54,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:54,948 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 847 transitions. [2023-12-21 14:12:54,948 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) [2023-12-21 14:12:54,948 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 847 transitions. [2023-12-21 14:12:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:54,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:54,949 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] [2023-12-21 14:12:54,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-21 14:12:54,949 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:54,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:54,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1499979031, now seen corresponding path program 1 times [2023-12-21 14:12:54,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:54,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348669558] [2023-12-21 14:12:54,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:54,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:55,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:55,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348669558] [2023-12-21 14:12:55,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348669558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:55,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:55,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:55,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299431895] [2023-12-21 14:12:55,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:55,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:55,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:55,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:55,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:55,133 INFO L87 Difference]: Start difference. First operand 684 states and 847 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) [2023-12-21 14:12:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:55,990 INFO L93 Difference]: Finished difference Result 1229 states and 1564 transitions. [2023-12-21 14:12:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:55,990 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 [2023-12-21 14:12:55,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:55,991 INFO L225 Difference]: With dead ends: 1229 [2023-12-21 14:12:55,991 INFO L226 Difference]: Without dead ends: 1148 [2023-12-21 14:12:55,992 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 [2023-12-21 14:12:55,992 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 2248 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:55,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2248 Valid, 2875 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:55,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2023-12-21 14:12:55,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 684. [2023-12-21 14:12:55,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 662 states have (on average 1.2779456193353473) internal successors, (846), 683 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) [2023-12-21 14:12:55,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 846 transitions. [2023-12-21 14:12:55,999 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 846 transitions. Word has length 100 [2023-12-21 14:12:55,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:55,999 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 846 transitions. [2023-12-21 14:12:55,999 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) [2023-12-21 14:12:55,999 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 846 transitions. [2023-12-21 14:12:56,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:56,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:56,000 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] [2023-12-21 14:12:56,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-21 14:12:56,001 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:56,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:56,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1759021801, now seen corresponding path program 1 times [2023-12-21 14:12:56,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:56,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813895329] [2023-12-21 14:12:56,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:56,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:56,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:56,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:56,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813895329] [2023-12-21 14:12:56,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813895329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:56,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:56,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:56,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112600990] [2023-12-21 14:12:56,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:56,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:56,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:56,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:56,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:56,292 INFO L87 Difference]: Start difference. First operand 684 states and 846 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) [2023-12-21 14:12:57,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:57,892 INFO L93 Difference]: Finished difference Result 1758 states and 2322 transitions. [2023-12-21 14:12:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:57,892 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 [2023-12-21 14:12:57,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:57,894 INFO L225 Difference]: With dead ends: 1758 [2023-12-21 14:12:57,894 INFO L226 Difference]: Without dead ends: 1664 [2023-12-21 14:12:57,895 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 [2023-12-21 14:12:57,895 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 6309 mSDsluCounter, 3548 mSDsCounter, 0 mSdLazyCounter, 3010 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6309 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 3206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 3010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:57,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6309 Valid, 4384 Invalid, 3206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 3010 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 14:12:57,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-12-21 14:12:57,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 689. [2023-12-21 14:12:57,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 667 states have (on average 1.2758620689655173) internal successors, (851), 688 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) [2023-12-21 14:12:57,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 851 transitions. [2023-12-21 14:12:57,902 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 851 transitions. Word has length 100 [2023-12-21 14:12:57,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:57,902 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 851 transitions. [2023-12-21 14:12:57,902 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) [2023-12-21 14:12:57,902 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 851 transitions. [2023-12-21 14:12:57,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:57,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:57,903 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] [2023-12-21 14:12:57,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-21 14:12:57,903 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:57,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:57,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2111792681, now seen corresponding path program 1 times [2023-12-21 14:12:57,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:57,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318608997] [2023-12-21 14:12:57,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:57,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:58,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:58,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:58,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318608997] [2023-12-21 14:12:58,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318608997] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:58,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:58,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:58,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548088508] [2023-12-21 14:12:58,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:58,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:58,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:58,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:58,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:58,111 INFO L87 Difference]: Start difference. First operand 689 states and 851 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) [2023-12-21 14:12:59,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:59,021 INFO L93 Difference]: Finished difference Result 1234 states and 1567 transitions. [2023-12-21 14:12:59,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:59,021 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 [2023-12-21 14:12:59,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:59,023 INFO L225 Difference]: With dead ends: 1234 [2023-12-21 14:12:59,023 INFO L226 Difference]: Without dead ends: 1153 [2023-12-21 14:12:59,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:59,023 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 3181 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3181 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 2023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:59,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3181 Valid, 2900 Invalid, 2023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:59,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2023-12-21 14:12:59,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 689. [2023-12-21 14:12:59,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 667 states have (on average 1.2743628185907045) internal successors, (850), 688 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) [2023-12-21 14:12:59,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 850 transitions. [2023-12-21 14:12:59,028 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 850 transitions. Word has length 100 [2023-12-21 14:12:59,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:59,028 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 850 transitions. [2023-12-21 14:12:59,029 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) [2023-12-21 14:12:59,029 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 850 transitions. [2023-12-21 14:12:59,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:59,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:59,029 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] [2023-12-21 14:12:59,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-21 14:12:59,030 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:59,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:59,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1562580969, now seen corresponding path program 1 times [2023-12-21 14:12:59,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:59,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401722360] [2023-12-21 14:12:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:59,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:59,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:59,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:59,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401722360] [2023-12-21 14:12:59,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401722360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:59,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:59,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:59,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747475593] [2023-12-21 14:12:59,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:59,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:59,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:59,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:59,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:59,336 INFO L87 Difference]: Start difference. First operand 689 states and 850 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) [2023-12-21 14:13:00,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:00,970 INFO L93 Difference]: Finished difference Result 1683 states and 2207 transitions. [2023-12-21 14:13:00,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:13:00,971 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 [2023-12-21 14:13:00,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:00,972 INFO L225 Difference]: With dead ends: 1683 [2023-12-21 14:13:00,972 INFO L226 Difference]: Without dead ends: 1664 [2023-12-21 14:13:00,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:13:00,973 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 5704 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 2715 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5704 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 2910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 2715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:00,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5704 Valid, 3846 Invalid, 2910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 2715 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 14:13:00,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-12-21 14:13:00,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 694. [2023-12-21 14:13:00,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 672 states have (on average 1.2723214285714286) internal successors, (855), 693 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) [2023-12-21 14:13:00,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 855 transitions. [2023-12-21 14:13:00,979 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 855 transitions. Word has length 100 [2023-12-21 14:13:00,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:00,979 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 855 transitions. [2023-12-21 14:13:00,979 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) [2023-12-21 14:13:00,979 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 855 transitions. [2023-12-21 14:13:00,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:13:00,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:00,980 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] [2023-12-21 14:13:00,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-21 14:13:00,980 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:00,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:00,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1915351849, now seen corresponding path program 1 times [2023-12-21 14:13:00,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:00,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491285940] [2023-12-21 14:13:00,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:00,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:01,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:01,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491285940] [2023-12-21 14:13:01,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491285940] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:01,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:01,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:13:01,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602204174] [2023-12-21 14:13:01,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:01,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:01,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:01,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:01,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:01,153 INFO L87 Difference]: Start difference. First operand 694 states and 855 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) [2023-12-21 14:13:02,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:02,061 INFO L93 Difference]: Finished difference Result 1164 states and 1460 transitions. [2023-12-21 14:13:02,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:13:02,061 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 [2023-12-21 14:13:02,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:02,062 INFO L225 Difference]: With dead ends: 1164 [2023-12-21 14:13:02,062 INFO L226 Difference]: Without dead ends: 1158 [2023-12-21 14:13:02,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:13:02,063 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 3177 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3177 SdHoareTripleChecker+Valid, 2901 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:02,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3177 Valid, 2901 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:13:02,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-12-21 14:13:02,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 694. [2023-12-21 14:13:02,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 672 states have (on average 1.2708333333333333) internal successors, (854), 693 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) [2023-12-21 14:13:02,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 854 transitions. [2023-12-21 14:13:02,068 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 854 transitions. Word has length 100 [2023-12-21 14:13:02,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:02,068 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 854 transitions. [2023-12-21 14:13:02,068 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) [2023-12-21 14:13:02,068 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 854 transitions. [2023-12-21 14:13:02,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:13:02,069 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:02,069 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] [2023-12-21 14:13:02,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-21 14:13:02,070 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:02,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:02,070 INFO L85 PathProgramCache]: Analyzing trace with hash 450158487, now seen corresponding path program 1 times [2023-12-21 14:13:02,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:02,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957861718] [2023-12-21 14:13:02,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:02,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:02,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:02,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:02,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957861718] [2023-12-21 14:13:02,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957861718] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:02,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:02,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:13:02,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982379204] [2023-12-21 14:13:02,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:02,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:02,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:02,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:02,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:02,226 INFO L87 Difference]: Start difference. First operand 694 states and 854 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) [2023-12-21 14:13:03,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:03,102 INFO L93 Difference]: Finished difference Result 1164 states and 1459 transitions. [2023-12-21 14:13:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:13:03,102 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 [2023-12-21 14:13:03,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:03,103 INFO L225 Difference]: With dead ends: 1164 [2023-12-21 14:13:03,103 INFO L226 Difference]: Without dead ends: 1158 [2023-12-21 14:13:03,104 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 [2023-12-21 14:13:03,104 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 3062 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3062 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:03,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3062 Valid, 3067 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:13:03,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-12-21 14:13:03,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 694. [2023-12-21 14:13:03,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 672 states have (on average 1.2693452380952381) internal successors, (853), 693 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) [2023-12-21 14:13:03,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 853 transitions. [2023-12-21 14:13:03,109 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 853 transitions. Word has length 100 [2023-12-21 14:13:03,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:03,109 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 853 transitions. [2023-12-21 14:13:03,109 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) [2023-12-21 14:13:03,109 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 853 transitions. [2023-12-21 14:13:03,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:13:03,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:03,110 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, 1, 1, 1] [2023-12-21 14:13:03,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-21 14:13:03,110 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:03,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:03,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1722148873, now seen corresponding path program 1 times [2023-12-21 14:13:03,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:03,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234352088] [2023-12-21 14:13:03,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:03,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:03,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:03,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234352088] [2023-12-21 14:13:03,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234352088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:03,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:03,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:13:03,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105391705] [2023-12-21 14:13:03,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:03,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:03,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:03,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:03,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:03,265 INFO L87 Difference]: Start difference. First operand 694 states and 853 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) [2023-12-21 14:13:04,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:04,142 INFO L93 Difference]: Finished difference Result 1164 states and 1457 transitions. [2023-12-21 14:13:04,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:13:04,142 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 [2023-12-21 14:13:04,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:04,144 INFO L225 Difference]: With dead ends: 1164 [2023-12-21 14:13:04,144 INFO L226 Difference]: Without dead ends: 1158 [2023-12-21 14:13:04,144 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 [2023-12-21 14:13:04,144 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 3059 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:04,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3059 Valid, 3067 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:13:04,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-12-21 14:13:04,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 694. [2023-12-21 14:13:04,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 672 states have (on average 1.2678571428571428) internal successors, (852), 693 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) [2023-12-21 14:13:04,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 852 transitions. [2023-12-21 14:13:04,149 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 852 transitions. Word has length 100 [2023-12-21 14:13:04,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:04,150 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 852 transitions. [2023-12-21 14:13:04,150 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) [2023-12-21 14:13:04,150 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 852 transitions. [2023-12-21 14:13:04,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:13:04,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:04,151 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] [2023-12-21 14:13:04,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-21 14:13:04,151 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:04,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:04,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1169257609, now seen corresponding path program 1 times [2023-12-21 14:13:04,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:04,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939495546] [2023-12-21 14:13:04,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:04,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:04,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:04,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:04,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939495546] [2023-12-21 14:13:04,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939495546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:04,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:04,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:13:04,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679798254] [2023-12-21 14:13:04,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:04,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:04,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:04,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:04,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:04,333 INFO L87 Difference]: Start difference. First operand 694 states and 852 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) [2023-12-21 14:13:05,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:05,234 INFO L93 Difference]: Finished difference Result 1164 states and 1455 transitions. [2023-12-21 14:13:05,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:13:05,234 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 [2023-12-21 14:13:05,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:05,235 INFO L225 Difference]: With dead ends: 1164 [2023-12-21 14:13:05,235 INFO L226 Difference]: Without dead ends: 1158 [2023-12-21 14:13:05,236 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 [2023-12-21 14:13:05,236 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 2139 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:05,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 3067 Invalid, 2145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:13:05,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-12-21 14:13:05,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 694. [2023-12-21 14:13:05,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 672 states have (on average 1.2663690476190477) internal successors, (851), 693 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) [2023-12-21 14:13:05,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 851 transitions. [2023-12-21 14:13:05,241 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 851 transitions. Word has length 100 [2023-12-21 14:13:05,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:05,241 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 851 transitions. [2023-12-21 14:13:05,241 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) [2023-12-21 14:13:05,241 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 851 transitions. [2023-12-21 14:13:05,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:13:05,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:05,242 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] [2023-12-21 14:13:05,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-21 14:13:05,242 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:05,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:05,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1569171767, now seen corresponding path program 1 times [2023-12-21 14:13:05,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:05,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466905224] [2023-12-21 14:13:05,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:05,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:05,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:05,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466905224] [2023-12-21 14:13:05,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466905224] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:05,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:05,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:13:05,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010116551] [2023-12-21 14:13:05,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:05,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:05,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:05,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:05,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:05,399 INFO L87 Difference]: Start difference. First operand 694 states and 851 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) [2023-12-21 14:13:06,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:06,291 INFO L93 Difference]: Finished difference Result 1239 states and 1564 transitions. [2023-12-21 14:13:06,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:13:06,291 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 [2023-12-21 14:13:06,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:06,292 INFO L225 Difference]: With dead ends: 1239 [2023-12-21 14:13:06,292 INFO L226 Difference]: Without dead ends: 1158 [2023-12-21 14:13:06,293 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 [2023-12-21 14:13:06,293 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 2138 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 2133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2138 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:06,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2138 Valid, 3065 Invalid, 2136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2133 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:13:06,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-12-21 14:13:06,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 694. [2023-12-21 14:13:06,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 672 states have (on average 1.2648809523809523) internal successors, (850), 693 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) [2023-12-21 14:13:06,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 850 transitions. [2023-12-21 14:13:06,298 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 850 transitions. Word has length 100 [2023-12-21 14:13:06,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:06,298 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 850 transitions. [2023-12-21 14:13:06,298 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) [2023-12-21 14:13:06,298 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 850 transitions. [2023-12-21 14:13:06,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:13:06,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:06,299 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] [2023-12-21 14:13:06,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-21 14:13:06,299 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:06,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:06,300 INFO L85 PathProgramCache]: Analyzing trace with hash -616698281, now seen corresponding path program 1 times [2023-12-21 14:13:06,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:06,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614290127] [2023-12-21 14:13:06,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:06,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:06,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:06,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:06,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614290127] [2023-12-21 14:13:06,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614290127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:06,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:06,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:13:06,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129393217] [2023-12-21 14:13:06,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:06,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:06,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:06,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:06,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:06,465 INFO L87 Difference]: Start difference. First operand 694 states and 850 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) [2023-12-21 14:13:07,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:07,340 INFO L93 Difference]: Finished difference Result 1239 states and 1562 transitions. [2023-12-21 14:13:07,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:13:07,340 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 [2023-12-21 14:13:07,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:07,341 INFO L225 Difference]: With dead ends: 1239 [2023-12-21 14:13:07,341 INFO L226 Difference]: Without dead ends: 1158 [2023-12-21 14:13:07,342 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 [2023-12-21 14:13:07,342 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 3238 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:07,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3238 Valid, 2879 Invalid, 1939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:13:07,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-12-21 14:13:07,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 694. [2023-12-21 14:13:07,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 672 states have (on average 1.2633928571428572) internal successors, (849), 693 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) [2023-12-21 14:13:07,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 849 transitions. [2023-12-21 14:13:07,347 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 849 transitions. Word has length 100 [2023-12-21 14:13:07,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:07,347 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 849 transitions. [2023-12-21 14:13:07,347 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) [2023-12-21 14:13:07,348 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 849 transitions. [2023-12-21 14:13:07,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:13:07,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:07,348 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] [2023-12-21 14:13:07,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-21 14:13:07,348 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:07,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:07,349 INFO L85 PathProgramCache]: Analyzing trace with hash -2050341577, now seen corresponding path program 1 times [2023-12-21 14:13:07,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:07,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805106428] [2023-12-21 14:13:07,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:07,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:07,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:07,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:07,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805106428] [2023-12-21 14:13:07,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805106428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:07,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:07,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:13:07,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478973262] [2023-12-21 14:13:07,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:07,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:13:07,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:07,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:13:07,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:13:07,648 INFO L87 Difference]: Start difference. First operand 694 states and 849 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) [2023-12-21 14:13:09,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:09,167 INFO L93 Difference]: Finished difference Result 1758 states and 2308 transitions. [2023-12-21 14:13:09,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:13:09,168 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 [2023-12-21 14:13:09,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:09,170 INFO L225 Difference]: With dead ends: 1758 [2023-12-21 14:13:09,170 INFO L226 Difference]: Without dead ends: 1664 [2023-12-21 14:13:09,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:13:09,171 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 7124 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 2814 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7124 SdHoareTripleChecker+Valid, 4210 SdHoareTripleChecker+Invalid, 3025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 2814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:09,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7124 Valid, 4210 Invalid, 3025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 2814 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 14:13:09,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-12-21 14:13:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 699. [2023-12-21 14:13:09,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 677 states have (on average 1.2614475627769572) internal successors, (854), 698 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) [2023-12-21 14:13:09,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 854 transitions. [2023-12-21 14:13:09,190 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 854 transitions. Word has length 100 [2023-12-21 14:13:09,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:09,191 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 854 transitions. [2023-12-21 14:13:09,191 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) [2023-12-21 14:13:09,191 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 854 transitions. [2023-12-21 14:13:09,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:13:09,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:09,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:09,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-21 14:13:09,192 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:09,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:09,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1891414921, now seen corresponding path program 1 times [2023-12-21 14:13:09,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:09,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721385328] [2023-12-21 14:13:09,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:09,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:09,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:09,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:09,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721385328] [2023-12-21 14:13:09,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721385328] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:09,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:09,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:13:09,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103527074] [2023-12-21 14:13:09,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:09,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:09,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:09,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:09,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:09,363 INFO L87 Difference]: Start difference. First operand 699 states and 854 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) [2023-12-21 14:13:10,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:10,192 INFO L93 Difference]: Finished difference Result 1244 states and 1565 transitions. [2023-12-21 14:13:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:13:10,192 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 [2023-12-21 14:13:10,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:10,193 INFO L225 Difference]: With dead ends: 1244 [2023-12-21 14:13:10,193 INFO L226 Difference]: Without dead ends: 1163 [2023-12-21 14:13:10,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:13:10,194 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 3347 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3347 SdHoareTripleChecker+Valid, 2714 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:10,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3347 Valid, 2714 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:13:10,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2023-12-21 14:13:10,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 699. [2023-12-21 14:13:10,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 677 states have (on average 1.259970457902511) internal successors, (853), 698 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) [2023-12-21 14:13:10,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 853 transitions. [2023-12-21 14:13:10,199 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 853 transitions. Word has length 100 [2023-12-21 14:13:10,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:10,199 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 853 transitions. [2023-12-21 14:13:10,199 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) [2023-12-21 14:13:10,199 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 853 transitions. [2023-12-21 14:13:10,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 14:13:10,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:10,200 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:10,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-21 14:13:10,200 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:10,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:10,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1565469443, now seen corresponding path program 1 times [2023-12-21 14:13:10,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:10,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600564624] [2023-12-21 14:13:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:10,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:12,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:12,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:12,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600564624] [2023-12-21 14:13:12,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600564624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:12,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:12,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2023-12-21 14:13:12,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880034908] [2023-12-21 14:13:12,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:12,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-21 14:13:12,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:12,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-21 14:13:12,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 14:13:12,114 INFO L87 Difference]: Start difference. First operand 699 states and 853 transitions. Second operand has 35 states, 35 states have (on average 2.8857142857142857) internal successors, (101), 34 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) [2023-12-21 14:13:24,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:24,748 INFO L93 Difference]: Finished difference Result 3030 states and 3750 transitions. [2023-12-21 14:13:24,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-21 14:13:24,748 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.8857142857142857) internal successors, (101), 34 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 [2023-12-21 14:13:24,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:24,750 INFO L225 Difference]: With dead ends: 3030 [2023-12-21 14:13:24,750 INFO L226 Difference]: Without dead ends: 2954 [2023-12-21 14:13:24,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=566, Invalid=3466, Unknown=0, NotChecked=0, Total=4032 [2023-12-21 14:13:24,751 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 10841 mSDsluCounter, 39139 mSDsCounter, 0 mSdLazyCounter, 23986 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10841 SdHoareTripleChecker+Valid, 41338 SdHoareTripleChecker+Invalid, 23994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 23986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:24,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10841 Valid, 41338 Invalid, 23994 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 23986 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-12-21 14:13:24,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2023-12-21 14:13:24,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 726. [2023-12-21 14:13:24,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 704 states have (on average 1.2599431818181819) internal successors, (887), 725 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:24,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 887 transitions. [2023-12-21 14:13:24,758 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 887 transitions. Word has length 101 [2023-12-21 14:13:24,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:24,758 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 887 transitions. [2023-12-21 14:13:24,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.8857142857142857) internal successors, (101), 34 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) [2023-12-21 14:13:24,758 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 887 transitions. [2023-12-21 14:13:24,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 14:13:24,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:24,759 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] [2023-12-21 14:13:24,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-21 14:13:24,759 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:24,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:24,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1170317597, now seen corresponding path program 1 times [2023-12-21 14:13:24,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:24,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074558543] [2023-12-21 14:13:24,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:24,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:25,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:25,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:25,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074558543] [2023-12-21 14:13:25,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074558543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:25,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:25,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:13:25,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057716498] [2023-12-21 14:13:25,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:25,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:13:25,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:25,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:13:25,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:13:25,105 INFO L87 Difference]: Start difference. First operand 726 states and 887 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 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) [2023-12-21 14:13:25,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:25,694 INFO L93 Difference]: Finished difference Result 1507 states and 1939 transitions. [2023-12-21 14:13:25,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:13:25,695 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 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 [2023-12-21 14:13:25,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:25,696 INFO L225 Difference]: With dead ends: 1507 [2023-12-21 14:13:25,696 INFO L226 Difference]: Without dead ends: 1405 [2023-12-21 14:13:25,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-21 14:13:25,697 INFO L413 NwaCegarLoop]: 1044 mSDtfsCounter, 4861 mSDsluCounter, 5476 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4861 SdHoareTripleChecker+Valid, 6520 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:25,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4861 Valid, 6520 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:13:25,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2023-12-21 14:13:25,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 699. [2023-12-21 14:13:25,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 678 states have (on average 1.2581120943952802) internal successors, (853), 698 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) [2023-12-21 14:13:25,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 853 transitions. [2023-12-21 14:13:25,702 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 853 transitions. Word has length 101 [2023-12-21 14:13:25,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:25,702 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 853 transitions. [2023-12-21 14:13:25,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 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) [2023-12-21 14:13:25,702 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 853 transitions. [2023-12-21 14:13:25,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 14:13:25,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:25,703 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, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:25,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-12-21 14:13:25,703 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:25,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:25,704 INFO L85 PathProgramCache]: Analyzing trace with hash 518251722, now seen corresponding path program 1 times [2023-12-21 14:13:25,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:25,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718126758] [2023-12-21 14:13:25,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:25,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:25,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:25,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718126758] [2023-12-21 14:13:25,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718126758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:25,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:25,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:13:25,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276095616] [2023-12-21 14:13:25,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:25,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:25,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:25,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:25,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:25,874 INFO L87 Difference]: Start difference. First operand 699 states and 853 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) [2023-12-21 14:13:26,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:26,720 INFO L93 Difference]: Finished difference Result 1283 states and 1624 transitions. [2023-12-21 14:13:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:13:26,720 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 [2023-12-21 14:13:26,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:26,721 INFO L225 Difference]: With dead ends: 1283 [2023-12-21 14:13:26,721 INFO L226 Difference]: Without dead ends: 1189 [2023-12-21 14:13:26,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:13:26,722 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 3236 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 1936 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3236 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:26,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3236 Valid, 2990 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1936 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:13:26,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2023-12-21 14:13:26,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 694. [2023-12-21 14:13:26,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 673 states have (on average 1.2585438335809807) internal successors, (847), 693 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) [2023-12-21 14:13:26,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 847 transitions. [2023-12-21 14:13:26,727 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 847 transitions. Word has length 101 [2023-12-21 14:13:26,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:26,727 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 847 transitions. [2023-12-21 14:13:26,727 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) [2023-12-21 14:13:26,727 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 847 transitions. [2023-12-21 14:13:26,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 14:13:26,728 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:26,728 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] [2023-12-21 14:13:26,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-12-21 14:13:26,728 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:26,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:26,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1466719901, now seen corresponding path program 1 times [2023-12-21 14:13:26,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:26,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595982616] [2023-12-21 14:13:26,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:26,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:27,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:27,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:27,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595982616] [2023-12-21 14:13:27,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595982616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:27,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:27,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 14:13:27,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633993718] [2023-12-21 14:13:27,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:27,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 14:13:27,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:27,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 14:13:27,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:13:27,112 INFO L87 Difference]: Start difference. First operand 694 states and 847 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 12 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) [2023-12-21 14:13:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:28,059 INFO L93 Difference]: Finished difference Result 2142 states and 2779 transitions. [2023-12-21 14:13:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 14:13:28,059 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 12 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 [2023-12-21 14:13:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:28,061 INFO L225 Difference]: With dead ends: 2142 [2023-12-21 14:13:28,062 INFO L226 Difference]: Without dead ends: 2024 [2023-12-21 14:13:28,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-21 14:13:28,062 INFO L413 NwaCegarLoop]: 1787 mSDtfsCounter, 4824 mSDsluCounter, 11486 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4824 SdHoareTripleChecker+Valid, 13273 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:28,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4824 Valid, 13273 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:13:28,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2023-12-21 14:13:28,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 651. [2023-12-21 14:13:28,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 633 states have (on average 1.2575039494470774) internal successors, (796), 650 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 796 transitions. [2023-12-21 14:13:28,069 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 796 transitions. Word has length 101 [2023-12-21 14:13:28,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:28,069 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 796 transitions. [2023-12-21 14:13:28,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 12 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) [2023-12-21 14:13:28,069 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 796 transitions. [2023-12-21 14:13:28,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 14:13:28,069 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:28,070 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] [2023-12-21 14:13:28,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2023-12-21 14:13:28,070 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:28,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:28,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1364738908, now seen corresponding path program 1 times [2023-12-21 14:13:28,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:28,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748184674] [2023-12-21 14:13:28,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:28,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:28,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:28,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:28,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748184674] [2023-12-21 14:13:28,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748184674] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:28,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:28,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:13:28,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006435772] [2023-12-21 14:13:28,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:28,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:28,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:28,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:28,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:28,233 INFO L87 Difference]: Start difference. First operand 651 states and 796 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) [2023-12-21 14:13:29,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:29,149 INFO L93 Difference]: Finished difference Result 1296 states and 1643 transitions. [2023-12-21 14:13:29,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:13:29,149 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 [2023-12-21 14:13:29,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:29,151 INFO L225 Difference]: With dead ends: 1296 [2023-12-21 14:13:29,151 INFO L226 Difference]: Without dead ends: 1177 [2023-12-21 14:13:29,151 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 [2023-12-21 14:13:29,151 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 2503 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 2236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:29,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2503 Valid, 3448 Invalid, 2236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:13:29,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2023-12-21 14:13:29,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 646. [2023-12-21 14:13:29,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 628 states have (on average 1.2579617834394905) internal successors, (790), 645 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:29,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 790 transitions. [2023-12-21 14:13:29,156 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 790 transitions. Word has length 101 [2023-12-21 14:13:29,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:29,156 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 790 transitions. [2023-12-21 14:13:29,156 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) [2023-12-21 14:13:29,156 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 790 transitions. [2023-12-21 14:13:29,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 14:13:29,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:29,157 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] [2023-12-21 14:13:29,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2023-12-21 14:13:29,157 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:29,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:29,158 INFO L85 PathProgramCache]: Analyzing trace with hash 330504227, now seen corresponding path program 1 times [2023-12-21 14:13:29,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:29,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289386425] [2023-12-21 14:13:29,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:29,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:29,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:29,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:29,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289386425] [2023-12-21 14:13:29,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289386425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:29,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:29,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 14:13:29,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618062] [2023-12-21 14:13:29,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:29,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 14:13:29,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:29,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 14:13:29,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:13:29,737 INFO L87 Difference]: Start difference. First operand 646 states and 790 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 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) [2023-12-21 14:13:30,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:30,846 INFO L93 Difference]: Finished difference Result 1587 states and 2031 transitions. [2023-12-21 14:13:30,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 14:13:30,847 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 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 [2023-12-21 14:13:30,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:30,848 INFO L225 Difference]: With dead ends: 1587 [2023-12-21 14:13:30,848 INFO L226 Difference]: Without dead ends: 1379 [2023-12-21 14:13:30,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=873, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 14:13:30,849 INFO L413 NwaCegarLoop]: 1274 mSDtfsCounter, 4066 mSDsluCounter, 9841 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4066 SdHoareTripleChecker+Valid, 11115 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:30,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4066 Valid, 11115 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:13:30,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2023-12-21 14:13:30,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 591. [2023-12-21 14:13:30,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 574 states have (on average 1.254355400696864) internal successors, (720), 590 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:30,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 720 transitions. [2023-12-21 14:13:30,854 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 720 transitions. Word has length 101 [2023-12-21 14:13:30,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:30,854 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 720 transitions. [2023-12-21 14:13:30,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 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) [2023-12-21 14:13:30,854 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 720 transitions. [2023-12-21 14:13:30,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 14:13:30,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:30,855 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] [2023-12-21 14:13:30,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-12-21 14:13:30,855 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:30,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:30,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1988895459, now seen corresponding path program 1 times [2023-12-21 14:13:30,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:30,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355011657] [2023-12-21 14:13:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:30,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:31,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:31,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:31,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355011657] [2023-12-21 14:13:31,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355011657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:31,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:31,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:13:31,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591460543] [2023-12-21 14:13:31,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:31,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:13:31,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:31,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:13:31,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:13:31,217 INFO L87 Difference]: Start difference. First operand 591 states and 720 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 10 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) [2023-12-21 14:13:31,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:31,753 INFO L93 Difference]: Finished difference Result 1339 states and 1697 transitions. [2023-12-21 14:13:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 14:13:31,753 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 10 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 [2023-12-21 14:13:31,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:31,754 INFO L225 Difference]: With dead ends: 1339 [2023-12-21 14:13:31,754 INFO L226 Difference]: Without dead ends: 1030 [2023-12-21 14:13:31,755 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 [2023-12-21 14:13:31,755 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 3801 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3801 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:31,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3801 Valid, 2359 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:13:31,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2023-12-21 14:13:31,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 357. [2023-12-21 14:13:31,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.2427745664739884) internal successors, (430), 356 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:31,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 430 transitions. [2023-12-21 14:13:31,758 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 430 transitions. Word has length 101 [2023-12-21 14:13:31,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:31,759 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 430 transitions. [2023-12-21 14:13:31,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 10 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) [2023-12-21 14:13:31,759 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 430 transitions. [2023-12-21 14:13:31,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 14:13:31,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:31,759 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] [2023-12-21 14:13:31,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2023-12-21 14:13:31,759 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:31,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:31,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1639927908, now seen corresponding path program 1 times [2023-12-21 14:13:31,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:31,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323226278] [2023-12-21 14:13:31,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:31,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:32,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:32,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:32,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323226278] [2023-12-21 14:13:32,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323226278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:32,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:32,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:13:32,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659985437] [2023-12-21 14:13:32,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:32,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:13:32,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:32,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:13:32,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:13:32,106 INFO L87 Difference]: Start difference. First operand 357 states and 430 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) [2023-12-21 14:13:32,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:32,650 INFO L93 Difference]: Finished difference Result 911 states and 1207 transitions. [2023-12-21 14:13:32,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:13:32,650 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 [2023-12-21 14:13:32,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:32,651 INFO L225 Difference]: With dead ends: 911 [2023-12-21 14:13:32,651 INFO L226 Difference]: Without dead ends: 819 [2023-12-21 14:13:32,651 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 [2023-12-21 14:13:32,652 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 2249 mSDsluCounter, 3901 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2249 SdHoareTripleChecker+Valid, 4710 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:32,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2249 Valid, 4710 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:13:32,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2023-12-21 14:13:32,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 340. [2023-12-21 14:13:32,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 331 states have (on average 1.2386706948640482) internal successors, (410), 339 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 410 transitions. [2023-12-21 14:13:32,655 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 410 transitions. Word has length 102 [2023-12-21 14:13:32,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:32,655 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 410 transitions. [2023-12-21 14:13:32,655 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) [2023-12-21 14:13:32,655 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 410 transitions. [2023-12-21 14:13:32,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 14:13:32,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:32,656 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] [2023-12-21 14:13:32,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2023-12-21 14:13:32,656 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)] === [2023-12-21 14:13:32,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:32,656 INFO L85 PathProgramCache]: Analyzing trace with hash 782557276, now seen corresponding path program 1 times [2023-12-21 14:13:32,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:32,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486751719] [2023-12-21 14:13:32,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:32,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:33,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:33,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486751719] [2023-12-21 14:13:33,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486751719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:33,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:33,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:13:33,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347006608] [2023-12-21 14:13:33,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:33,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:13:33,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:33,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:13:33,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:13:33,033 INFO L87 Difference]: Start difference. First operand 340 states and 410 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) [2023-12-21 14:13:33,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:33,505 INFO L93 Difference]: Finished difference Result 881 states and 1175 transitions. [2023-12-21 14:13:33,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:13:33,506 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 [2023-12-21 14:13:33,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:33,506 INFO L225 Difference]: With dead ends: 881 [2023-12-21 14:13:33,506 INFO L226 Difference]: Without dead ends: 762 [2023-12-21 14:13:33,507 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 [2023-12-21 14:13:33,507 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 1850 mSDsluCounter, 3029 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1850 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:33,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1850 Valid, 3818 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:13:33,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2023-12-21 14:13:33,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 277. [2023-12-21 14:13:33,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 271 states have (on average 1.2287822878228782) internal successors, (333), 276 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) [2023-12-21 14:13:33,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 333 transitions. [2023-12-21 14:13:33,509 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 333 transitions. Word has length 102 [2023-12-21 14:13:33,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:33,510 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 333 transitions. [2023-12-21 14:13:33,510 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) [2023-12-21 14:13:33,510 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 333 transitions. [2023-12-21 14:13:33,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 14:13:33,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:33,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:33,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-12-21 14:13:33,510 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:33,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:33,511 INFO L85 PathProgramCache]: Analyzing trace with hash -733643047, now seen corresponding path program 1 times [2023-12-21 14:13:33,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:33,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120355500] [2023-12-21 14:13:33,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:33,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:33,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:33,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:33,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120355500] [2023-12-21 14:13:33,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120355500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:33,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:33,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:13:33,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500093756] [2023-12-21 14:13:33,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:33,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:13:33,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:33,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:13:33,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:13:33,852 INFO L87 Difference]: Start difference. First operand 277 states and 333 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) [2023-12-21 14:13:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:34,252 INFO L93 Difference]: Finished difference Result 517 states and 652 transitions. [2023-12-21 14:13:34,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:13:34,252 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 [2023-12-21 14:13:34,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:34,252 INFO L225 Difference]: With dead ends: 517 [2023-12-21 14:13:34,252 INFO L226 Difference]: Without dead ends: 430 [2023-12-21 14:13:34,253 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 [2023-12-21 14:13:34,253 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1761 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 1885 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:34,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 1885 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:13:34,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-12-21 14:13:34,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 265. [2023-12-21 14:13:34,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 260 states have (on average 1.226923076923077) internal successors, (319), 264 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:34,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 319 transitions. [2023-12-21 14:13:34,255 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 319 transitions. Word has length 102 [2023-12-21 14:13:34,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:34,255 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 319 transitions. [2023-12-21 14:13:34,255 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) [2023-12-21 14:13:34,255 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 319 transitions. [2023-12-21 14:13:34,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 14:13:34,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:34,256 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] [2023-12-21 14:13:34,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2023-12-21 14:13:34,256 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:34,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:34,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1835606412, now seen corresponding path program 1 times [2023-12-21 14:13:34,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:34,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253770103] [2023-12-21 14:13:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:34,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:34,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:34,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253770103] [2023-12-21 14:13:34,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253770103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:34,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:34,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:13:34,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046462720] [2023-12-21 14:13:34,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:34,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:34,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:34,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:34,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:34,413 INFO L87 Difference]: Start difference. First operand 265 states and 319 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 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) [2023-12-21 14:13:34,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:34,746 INFO L93 Difference]: Finished difference Result 411 states and 507 transitions. [2023-12-21 14:13:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:13:34,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 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 [2023-12-21 14:13:34,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:34,747 INFO L225 Difference]: With dead ends: 411 [2023-12-21 14:13:34,747 INFO L226 Difference]: Without dead ends: 392 [2023-12-21 14:13:34,748 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 [2023-12-21 14:13:34,748 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 1202 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:34,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 893 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:13:34,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-12-21 14:13:34,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 260. [2023-12-21 14:13:34,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.227450980392157) internal successors, (313), 259 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:34,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 313 transitions. [2023-12-21 14:13:34,750 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 313 transitions. Word has length 102 [2023-12-21 14:13:34,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:34,750 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 313 transitions. [2023-12-21 14:13:34,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 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) [2023-12-21 14:13:34,750 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 313 transitions. [2023-12-21 14:13:34,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 14:13:34,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:34,751 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] [2023-12-21 14:13:34,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2023-12-21 14:13:34,751 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:34,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:34,751 INFO L85 PathProgramCache]: Analyzing trace with hash -416637735, now seen corresponding path program 1 times [2023-12-21 14:13:34,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:34,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811651424] [2023-12-21 14:13:34,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:34,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:35,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:35,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811651424] [2023-12-21 14:13:35,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811651424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:35,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:35,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 14:13:35,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144102703] [2023-12-21 14:13:35,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:35,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 14:13:35,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:35,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 14:13:35,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-12-21 14:13:35,360 INFO L87 Difference]: Start difference. First operand 260 states and 313 transitions. Second operand has 16 states, 16 states have (on average 6.375) internal successors, (102), 15 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) [2023-12-21 14:13:36,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:36,348 INFO L93 Difference]: Finished difference Result 665 states and 838 transitions. [2023-12-21 14:13:36,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 14:13:36,348 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.375) internal successors, (102), 15 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 [2023-12-21 14:13:36,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:36,349 INFO L225 Difference]: With dead ends: 665 [2023-12-21 14:13:36,349 INFO L226 Difference]: Without dead ends: 589 [2023-12-21 14:13:36,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:13:36,350 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 2921 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2921 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:36,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2921 Valid, 2777 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:13:36,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2023-12-21 14:13:36,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 289. [2023-12-21 14:13:36,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 284 states have (on average 1.2288732394366197) internal successors, (349), 288 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:36,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 349 transitions. [2023-12-21 14:13:36,352 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 349 transitions. Word has length 102 [2023-12-21 14:13:36,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:36,352 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 349 transitions. [2023-12-21 14:13:36,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.375) internal successors, (102), 15 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) [2023-12-21 14:13:36,352 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 349 transitions. [2023-12-21 14:13:36,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 14:13:36,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:36,353 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] [2023-12-21 14:13:36,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2023-12-21 14:13:36,353 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:36,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:36,353 INFO L85 PathProgramCache]: Analyzing trace with hash -384185607, now seen corresponding path program 1 times [2023-12-21 14:13:36,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:36,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356104676] [2023-12-21 14:13:36,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:36,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:36,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:36,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:36,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356104676] [2023-12-21 14:13:36,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356104676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:36,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:36,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 14:13:36,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947392341] [2023-12-21 14:13:36,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:36,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:13:36,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:36,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:13:36,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:13:36,653 INFO L87 Difference]: Start difference. First operand 289 states and 349 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 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) [2023-12-21 14:13:36,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:36,872 INFO L93 Difference]: Finished difference Result 501 states and 638 transitions. [2023-12-21 14:13:36,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 14:13:36,872 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 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 [2023-12-21 14:13:36,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:36,872 INFO L225 Difference]: With dead ends: 501 [2023-12-21 14:13:36,873 INFO L226 Difference]: Without dead ends: 388 [2023-12-21 14:13:36,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-12-21 14:13:36,876 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 794 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:36,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1986 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:36,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2023-12-21 14:13:36,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 233. [2023-12-21 14:13:36,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 229 states have (on average 1.222707423580786) internal successors, (280), 232 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:36,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 280 transitions. [2023-12-21 14:13:36,878 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 280 transitions. Word has length 102 [2023-12-21 14:13:36,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:36,878 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 280 transitions. [2023-12-21 14:13:36,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 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) [2023-12-21 14:13:36,878 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 280 transitions. [2023-12-21 14:13:36,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 14:13:36,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:36,879 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] [2023-12-21 14:13:36,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2023-12-21 14:13:36,879 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:36,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:36,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1888325114, now seen corresponding path program 1 times [2023-12-21 14:13:36,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:36,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324919759] [2023-12-21 14:13:36,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:36,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:37,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:37,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324919759] [2023-12-21 14:13:37,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324919759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:37,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:37,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 14:13:37,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273633436] [2023-12-21 14:13:37,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:37,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 14:13:37,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:37,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 14:13:37,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-12-21 14:13:37,496 INFO L87 Difference]: Start difference. First operand 233 states and 280 transitions. Second operand has 16 states, 16 states have (on average 6.4375) internal successors, (103), 15 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) [2023-12-21 14:13:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:38,348 INFO L93 Difference]: Finished difference Result 547 states and 675 transitions. [2023-12-21 14:13:38,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 14:13:38,349 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.4375) internal successors, (103), 15 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 [2023-12-21 14:13:38,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:38,349 INFO L225 Difference]: With dead ends: 547 [2023-12-21 14:13:38,349 INFO L226 Difference]: Without dead ends: 543 [2023-12-21 14:13:38,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:13:38,350 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 2390 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2390 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:38,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2390 Valid, 2206 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:13:38,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-12-21 14:13:38,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 265. [2023-12-21 14:13:38,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 261 states have (on average 1.2183908045977012) internal successors, (318), 264 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:38,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 318 transitions. [2023-12-21 14:13:38,352 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 318 transitions. Word has length 103 [2023-12-21 14:13:38,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:38,352 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 318 transitions. [2023-12-21 14:13:38,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.4375) internal successors, (103), 15 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) [2023-12-21 14:13:38,353 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 318 transitions. [2023-12-21 14:13:38,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 14:13:38,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:38,353 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] [2023-12-21 14:13:38,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2023-12-21 14:13:38,353 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:38,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:38,353 INFO L85 PathProgramCache]: Analyzing trace with hash 335461180, now seen corresponding path program 1 times [2023-12-21 14:13:38,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:38,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111341386] [2023-12-21 14:13:38,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:38,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:38,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:38,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:38,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111341386] [2023-12-21 14:13:38,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111341386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:38,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:38,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:13:38,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221284145] [2023-12-21 14:13:38,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:38,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:13:38,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:38,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:13:38,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:13:38,632 INFO L87 Difference]: Start difference. First operand 265 states and 318 transitions. Second operand has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:39,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:39,502 INFO L93 Difference]: Finished difference Result 1134 states and 1544 transitions. [2023-12-21 14:13:39,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 14:13:39,502 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-21 14:13:39,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:39,503 INFO L225 Difference]: With dead ends: 1134 [2023-12-21 14:13:39,503 INFO L226 Difference]: Without dead ends: 1039 [2023-12-21 14:13:39,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2023-12-21 14:13:39,504 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 4109 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4109 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:39,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4109 Valid, 1474 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:13:39,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2023-12-21 14:13:39,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 270. [2023-12-21 14:13:39,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 266 states have (on average 1.2142857142857142) internal successors, (323), 269 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:39,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 323 transitions. [2023-12-21 14:13:39,507 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 323 transitions. Word has length 104 [2023-12-21 14:13:39,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:39,507 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 323 transitions. [2023-12-21 14:13:39,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:39,507 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 323 transitions. [2023-12-21 14:13:39,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 14:13:39,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:39,507 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] [2023-12-21 14:13:39,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2023-12-21 14:13:39,508 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:39,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:39,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1807672498, now seen corresponding path program 1 times [2023-12-21 14:13:39,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:39,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598889213] [2023-12-21 14:13:39,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:39,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:39,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:39,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:39,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598889213] [2023-12-21 14:13:39,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598889213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:39,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:39,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:13:39,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901556692] [2023-12-21 14:13:39,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:39,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:13:39,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:39,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:13:39,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:13:39,850 INFO L87 Difference]: Start difference. First operand 270 states and 323 transitions. Second operand has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:40,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:40,236 INFO L93 Difference]: Finished difference Result 786 states and 1032 transitions. [2023-12-21 14:13:40,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 14:13:40,236 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-21 14:13:40,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:40,237 INFO L225 Difference]: With dead ends: 786 [2023-12-21 14:13:40,237 INFO L226 Difference]: Without dead ends: 723 [2023-12-21 14:13:40,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2023-12-21 14:13:40,237 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 1532 mSDsluCounter, 2738 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 3386 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:40,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 3386 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:13:40,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2023-12-21 14:13:40,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 200. [2023-12-21 14:13:40,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 198 states have (on average 1.2272727272727273) internal successors, (243), 199 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:40,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 243 transitions. [2023-12-21 14:13:40,240 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 243 transitions. Word has length 104 [2023-12-21 14:13:40,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:40,240 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 243 transitions. [2023-12-21 14:13:40,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:40,240 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 243 transitions. [2023-12-21 14:13:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 14:13:40,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:40,241 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] [2023-12-21 14:13:40,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2023-12-21 14:13:40,241 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:40,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:40,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1644170665, now seen corresponding path program 1 times [2023-12-21 14:13:40,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:40,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587325558] [2023-12-21 14:13:40,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:40,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:40,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:40,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:40,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587325558] [2023-12-21 14:13:40,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587325558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:40,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:40,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:13:40,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128705107] [2023-12-21 14:13:40,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:40,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:40,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:40,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:40,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:40,411 INFO L87 Difference]: Start difference. First operand 200 states and 243 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:40,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:40,707 INFO L93 Difference]: Finished difference Result 395 states and 513 transitions. [2023-12-21 14:13:40,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:13:40,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-21 14:13:40,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:40,708 INFO L225 Difference]: With dead ends: 395 [2023-12-21 14:13:40,708 INFO L226 Difference]: Without dead ends: 300 [2023-12-21 14:13:40,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-21 14:13:40,708 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 848 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:40,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 745 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:13:40,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-12-21 14:13:40,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 195. [2023-12-21 14:13:40,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 193 states have (on average 1.2279792746113989) internal successors, (237), 194 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:40,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 237 transitions. [2023-12-21 14:13:40,710 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 237 transitions. Word has length 105 [2023-12-21 14:13:40,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:40,710 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 237 transitions. [2023-12-21 14:13:40,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:40,710 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 237 transitions. [2023-12-21 14:13:40,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 14:13:40,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:40,711 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:40,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2023-12-21 14:13:40,711 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:40,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:40,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1176555649, now seen corresponding path program 1 times [2023-12-21 14:13:40,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:40,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853483274] [2023-12-21 14:13:40,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:40,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:42,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:42,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:42,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853483274] [2023-12-21 14:13:42,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853483274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:42,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:42,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-21 14:13:42,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700104440] [2023-12-21 14:13:42,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:42,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-21 14:13:42,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:42,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-21 14:13:42,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2023-12-21 14:13:42,434 INFO L87 Difference]: Start difference. First operand 195 states and 237 transitions. Second operand has 33 states, 33 states have (on average 3.212121212121212) internal successors, (106), 32 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:48,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:48,480 INFO L93 Difference]: Finished difference Result 1040 states and 1387 transitions. [2023-12-21 14:13:48,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-21 14:13:48,480 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.212121212121212) internal successors, (106), 32 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-21 14:13:48,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:48,481 INFO L225 Difference]: With dead ends: 1040 [2023-12-21 14:13:48,481 INFO L226 Difference]: Without dead ends: 1034 [2023-12-21 14:13:48,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=479, Invalid=3061, Unknown=0, NotChecked=0, Total=3540 [2023-12-21 14:13:48,481 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 2822 mSDsluCounter, 17056 mSDsCounter, 0 mSdLazyCounter, 8384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2822 SdHoareTripleChecker+Valid, 17913 SdHoareTripleChecker+Invalid, 8384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:48,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2822 Valid, 17913 Invalid, 8384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 8384 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-21 14:13:48,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2023-12-21 14:13:48,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 226. [2023-12-21 14:13:48,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 224 states have (on average 1.2232142857142858) internal successors, (274), 225 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:48,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 274 transitions. [2023-12-21 14:13:48,484 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 274 transitions. Word has length 106 [2023-12-21 14:13:48,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:48,484 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 274 transitions. [2023-12-21 14:13:48,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.212121212121212) internal successors, (106), 32 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:48,485 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 274 transitions. [2023-12-21 14:13:48,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 14:13:48,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:48,485 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] [2023-12-21 14:13:48,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2023-12-21 14:13:48,485 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:48,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:48,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1589162411, now seen corresponding path program 1 times [2023-12-21 14:13:48,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:48,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053154606] [2023-12-21 14:13:48,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:48,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:48,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:48,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:48,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053154606] [2023-12-21 14:13:48,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053154606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:48,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:48,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:13:48,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844581763] [2023-12-21 14:13:48,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:48,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:13:48,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:48,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:13:48,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:13:48,831 INFO L87 Difference]: Start difference. First operand 226 states and 274 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:49,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:49,159 INFO L93 Difference]: Finished difference Result 482 states and 638 transitions. [2023-12-21 14:13:49,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:13:49,159 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-21 14:13:49,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:49,160 INFO L225 Difference]: With dead ends: 482 [2023-12-21 14:13:49,160 INFO L226 Difference]: Without dead ends: 476 [2023-12-21 14:13:49,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2023-12-21 14:13:49,160 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 645 mSDsluCounter, 1775 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:49,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 2301 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:13:49,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-12-21 14:13:49,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 189. [2023-12-21 14:13:49,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 1.2287234042553192) internal successors, (231), 188 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:49,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 231 transitions. [2023-12-21 14:13:49,162 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 231 transitions. Word has length 107 [2023-12-21 14:13:49,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:49,162 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 231 transitions. [2023-12-21 14:13:49,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 231 transitions. [2023-12-21 14:13:49,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-21 14:13:49,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:49,163 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, 1, 1, 1] [2023-12-21 14:13:49,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2023-12-21 14:13:49,163 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:49,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:49,163 INFO L85 PathProgramCache]: Analyzing trace with hash 873878543, now seen corresponding path program 1 times [2023-12-21 14:13:49,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:49,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781102089] [2023-12-21 14:13:49,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:49,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:49,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:49,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:49,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781102089] [2023-12-21 14:13:49,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781102089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:49,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:49,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:49,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758086004] [2023-12-21 14:13:49,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:49,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:49,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:49,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:49,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:49,286 INFO L87 Difference]: Start difference. First operand 189 states and 231 transitions. Second operand has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 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) [2023-12-21 14:13:49,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:49,436 INFO L93 Difference]: Finished difference Result 1089 states and 1551 transitions. [2023-12-21 14:13:49,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:13:49,436 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 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 [2023-12-21 14:13:49,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:49,437 INFO L225 Difference]: With dead ends: 1089 [2023-12-21 14:13:49,437 INFO L226 Difference]: Without dead ends: 1014 [2023-12-21 14:13:49,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:13:49,438 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 2310 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:49,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2310 Valid, 1869 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:49,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2023-12-21 14:13:49,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 262. [2023-12-21 14:13:49,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 261 states have (on average 1.2950191570881227) internal successors, (338), 261 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:49,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 338 transitions. [2023-12-21 14:13:49,442 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 338 transitions. Word has length 139 [2023-12-21 14:13:49,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:49,442 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 338 transitions. [2023-12-21 14:13:49,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 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) [2023-12-21 14:13:49,442 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 338 transitions. [2023-12-21 14:13:49,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 14:13:49,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:49,442 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] [2023-12-21 14:13:49,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2023-12-21 14:13:49,443 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:49,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:49,443 INFO L85 PathProgramCache]: Analyzing trace with hash -759796072, now seen corresponding path program 1 times [2023-12-21 14:13:49,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:49,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233965760] [2023-12-21 14:13:49,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:49,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:49,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:49,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:49,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233965760] [2023-12-21 14:13:49,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233965760] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:49,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:49,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:49,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969044366] [2023-12-21 14:13:49,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:49,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:49,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:49,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:49,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:49,576 INFO L87 Difference]: Start difference. First operand 262 states and 338 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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) [2023-12-21 14:13:49,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:49,684 INFO L93 Difference]: Finished difference Result 1225 states and 1748 transitions. [2023-12-21 14:13:49,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:13:49,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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 [2023-12-21 14:13:49,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:49,685 INFO L225 Difference]: With dead ends: 1225 [2023-12-21 14:13:49,685 INFO L226 Difference]: Without dead ends: 1077 [2023-12-21 14:13:49,685 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 [2023-12-21 14:13:49,686 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1911 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:49,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 1255 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:49,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2023-12-21 14:13:49,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 408. [2023-12-21 14:13:49,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.3587223587223587) internal successors, (553), 407 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:49,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 553 transitions. [2023-12-21 14:13:49,690 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 553 transitions. Word has length 141 [2023-12-21 14:13:49,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:49,690 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 553 transitions. [2023-12-21 14:13:49,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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) [2023-12-21 14:13:49,690 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 553 transitions. [2023-12-21 14:13:49,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 14:13:49,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:49,691 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] [2023-12-21 14:13:49,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2023-12-21 14:13:49,691 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:49,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:49,691 INFO L85 PathProgramCache]: Analyzing trace with hash -317906369, now seen corresponding path program 1 times [2023-12-21 14:13:49,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:49,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754834775] [2023-12-21 14:13:49,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:49,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:49,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:49,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:49,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754834775] [2023-12-21 14:13:49,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754834775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:49,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:49,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:49,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462677432] [2023-12-21 14:13:49,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:49,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:49,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:49,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:49,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:49,749 INFO L87 Difference]: Start difference. First operand 408 states and 553 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) [2023-12-21 14:13:49,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:49,767 INFO L93 Difference]: Finished difference Result 970 states and 1371 transitions. [2023-12-21 14:13:49,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:49,767 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 [2023-12-21 14:13:49,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:49,768 INFO L225 Difference]: With dead ends: 970 [2023-12-21 14:13:49,768 INFO L226 Difference]: Without dead ends: 676 [2023-12-21 14:13:49,768 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 [2023-12-21 14:13:49,768 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 97 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 540 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 [2023-12-21 14:13:49,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 540 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:49,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2023-12-21 14:13:49,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 674. [2023-12-21 14:13:49,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 673 states have (on average 1.3818722139673105) internal successors, (930), 673 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:49,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 930 transitions. [2023-12-21 14:13:49,773 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 930 transitions. Word has length 141 [2023-12-21 14:13:49,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:49,773 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 930 transitions. [2023-12-21 14:13:49,773 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) [2023-12-21 14:13:49,773 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 930 transitions. [2023-12-21 14:13:49,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 14:13:49,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:49,774 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] [2023-12-21 14:13:49,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2023-12-21 14:13:49,774 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:49,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:49,774 INFO L85 PathProgramCache]: Analyzing trace with hash -251412857, now seen corresponding path program 1 times [2023-12-21 14:13:49,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:49,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619659232] [2023-12-21 14:13:49,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:49,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:49,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:49,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:49,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619659232] [2023-12-21 14:13:49,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619659232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:49,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:49,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:49,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685992018] [2023-12-21 14:13:49,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:49,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:49,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:49,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:49,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:49,837 INFO L87 Difference]: Start difference. First operand 674 states and 930 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) [2023-12-21 14:13:49,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:49,860 INFO L93 Difference]: Finished difference Result 1236 states and 1740 transitions. [2023-12-21 14:13:49,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:49,860 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 [2023-12-21 14:13:49,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:49,861 INFO L225 Difference]: With dead ends: 1236 [2023-12-21 14:13:49,861 INFO L226 Difference]: Without dead ends: 676 [2023-12-21 14:13:49,861 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 [2023-12-21 14:13:49,861 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 86 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 383 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 [2023-12-21 14:13:49,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 383 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:49,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2023-12-21 14:13:49,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 674. [2023-12-21 14:13:49,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 673 states have (on average 1.3789004457652303) internal successors, (928), 673 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:49,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 928 transitions. [2023-12-21 14:13:49,867 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 928 transitions. Word has length 141 [2023-12-21 14:13:49,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:49,867 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 928 transitions. [2023-12-21 14:13:49,867 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) [2023-12-21 14:13:49,867 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 928 transitions. [2023-12-21 14:13:49,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 14:13:49,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:49,867 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] [2023-12-21 14:13:49,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2023-12-21 14:13:49,868 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:49,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:49,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1456606568, now seen corresponding path program 1 times [2023-12-21 14:13:49,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:49,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486477162] [2023-12-21 14:13:49,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:49,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:50,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:50,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:50,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486477162] [2023-12-21 14:13:50,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486477162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:50,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:50,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:50,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443810110] [2023-12-21 14:13:50,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:50,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:50,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:50,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:50,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:50,008 INFO L87 Difference]: Start difference. First operand 674 states and 928 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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) [2023-12-21 14:13:50,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:50,113 INFO L93 Difference]: Finished difference Result 2502 states and 3560 transitions. [2023-12-21 14:13:50,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:13:50,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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 [2023-12-21 14:13:50,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:50,115 INFO L225 Difference]: With dead ends: 2502 [2023-12-21 14:13:50,115 INFO L226 Difference]: Without dead ends: 2221 [2023-12-21 14:13:50,116 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 [2023-12-21 14:13:50,116 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1780 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:50,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 1280 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2023-12-21 14:13:50,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 1093. [2023-12-21 14:13:50,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 1092 states have (on average 1.402014652014652) internal successors, (1531), 1092 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:50,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1531 transitions. [2023-12-21 14:13:50,126 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1531 transitions. Word has length 141 [2023-12-21 14:13:50,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:50,127 INFO L495 AbstractCegarLoop]: Abstraction has 1093 states and 1531 transitions. [2023-12-21 14:13:50,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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) [2023-12-21 14:13:50,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1531 transitions. [2023-12-21 14:13:50,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 14:13:50,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:50,127 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] [2023-12-21 14:13:50,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2023-12-21 14:13:50,127 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:50,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:50,128 INFO L85 PathProgramCache]: Analyzing trace with hash 838447256, now seen corresponding path program 1 times [2023-12-21 14:13:50,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:50,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832507698] [2023-12-21 14:13:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:50,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:50,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:50,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:50,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832507698] [2023-12-21 14:13:50,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832507698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:50,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:50,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:50,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377049706] [2023-12-21 14:13:50,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:50,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:50,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:50,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:50,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:50,253 INFO L87 Difference]: Start difference. First operand 1093 states and 1531 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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) [2023-12-21 14:13:50,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:50,356 INFO L93 Difference]: Finished difference Result 2781 states and 3962 transitions. [2023-12-21 14:13:50,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:13:50,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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 [2023-12-21 14:13:50,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:50,358 INFO L225 Difference]: With dead ends: 2781 [2023-12-21 14:13:50,358 INFO L226 Difference]: Without dead ends: 2500 [2023-12-21 14:13:50,358 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 [2023-12-21 14:13:50,359 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1636 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:50,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1636 Valid, 1391 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:50,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2023-12-21 14:13:50,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 1372. [2023-12-21 14:13:50,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1371 states have (on average 1.4099197665937273) internal successors, (1933), 1371 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:50,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1933 transitions. [2023-12-21 14:13:50,369 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1933 transitions. Word has length 141 [2023-12-21 14:13:50,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:50,370 INFO L495 AbstractCegarLoop]: Abstraction has 1372 states and 1933 transitions. [2023-12-21 14:13:50,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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) [2023-12-21 14:13:50,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1933 transitions. [2023-12-21 14:13:50,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 14:13:50,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:50,370 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] [2023-12-21 14:13:50,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2023-12-21 14:13:50,371 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:50,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:50,371 INFO L85 PathProgramCache]: Analyzing trace with hash 719596696, now seen corresponding path program 1 times [2023-12-21 14:13:50,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:50,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621261565] [2023-12-21 14:13:50,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:50,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:50,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:50,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:50,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621261565] [2023-12-21 14:13:50,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621261565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:50,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:50,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:50,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807180142] [2023-12-21 14:13:50,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:50,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:50,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:50,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:50,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:50,502 INFO L87 Difference]: Start difference. First operand 1372 states and 1933 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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) [2023-12-21 14:13:50,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:50,609 INFO L93 Difference]: Finished difference Result 3060 states and 4364 transitions. [2023-12-21 14:13:50,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:13:50,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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 [2023-12-21 14:13:50,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:50,612 INFO L225 Difference]: With dead ends: 3060 [2023-12-21 14:13:50,612 INFO L226 Difference]: Without dead ends: 2779 [2023-12-21 14:13:50,612 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 [2023-12-21 14:13:50,612 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1588 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1588 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:50,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 1536 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:50,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2023-12-21 14:13:50,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 1651. [2023-12-21 14:13:50,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1650 states have (on average 1.415151515151515) internal successors, (2335), 1650 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:50,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2335 transitions. [2023-12-21 14:13:50,627 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2335 transitions. Word has length 141 [2023-12-21 14:13:50,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:50,627 INFO L495 AbstractCegarLoop]: Abstraction has 1651 states and 2335 transitions. [2023-12-21 14:13:50,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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) [2023-12-21 14:13:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2335 transitions. [2023-12-21 14:13:50,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 14:13:50,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:50,628 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] [2023-12-21 14:13:50,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2023-12-21 14:13:50,628 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:50,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:50,629 INFO L85 PathProgramCache]: Analyzing trace with hash 436398744, now seen corresponding path program 1 times [2023-12-21 14:13:50,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:50,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548580928] [2023-12-21 14:13:50,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:50,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:50,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:50,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:50,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548580928] [2023-12-21 14:13:50,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548580928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:50,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:50,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:50,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820389889] [2023-12-21 14:13:50,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:50,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:50,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:50,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:50,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:50,756 INFO L87 Difference]: Start difference. First operand 1651 states and 2335 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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) [2023-12-21 14:13:50,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:50,864 INFO L93 Difference]: Finished difference Result 3339 states and 4766 transitions. [2023-12-21 14:13:50,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:13:50,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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 [2023-12-21 14:13:50,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:50,866 INFO L225 Difference]: With dead ends: 3339 [2023-12-21 14:13:50,866 INFO L226 Difference]: Without dead ends: 3058 [2023-12-21 14:13:50,867 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 [2023-12-21 14:13:50,867 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 1641 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:50,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 1534 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:50,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2023-12-21 14:13:50,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 1930. [2023-12-21 14:13:50,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1930 states, 1929 states have (on average 1.4188698807672369) internal successors, (2737), 1929 states have internal predecessors, (2737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:50,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 2737 transitions. [2023-12-21 14:13:50,887 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 2737 transitions. Word has length 141 [2023-12-21 14:13:50,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:50,887 INFO L495 AbstractCegarLoop]: Abstraction has 1930 states and 2737 transitions. [2023-12-21 14:13:50,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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) [2023-12-21 14:13:50,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 2737 transitions. [2023-12-21 14:13:50,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 14:13:50,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:50,888 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] [2023-12-21 14:13:50,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2023-12-21 14:13:50,888 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:50,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:50,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1080907624, now seen corresponding path program 1 times [2023-12-21 14:13:50,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:50,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721016478] [2023-12-21 14:13:50,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:50,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:51,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:51,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721016478] [2023-12-21 14:13:51,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721016478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:51,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:51,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:51,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857628980] [2023-12-21 14:13:51,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:51,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:51,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:51,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:51,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:51,022 INFO L87 Difference]: Start difference. First operand 1930 states and 2737 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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) [2023-12-21 14:13:51,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:51,130 INFO L93 Difference]: Finished difference Result 3618 states and 5168 transitions. [2023-12-21 14:13:51,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:13:51,130 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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 [2023-12-21 14:13:51,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:51,133 INFO L225 Difference]: With dead ends: 3618 [2023-12-21 14:13:51,133 INFO L226 Difference]: Without dead ends: 3337 [2023-12-21 14:13:51,133 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 [2023-12-21 14:13:51,133 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1641 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:51,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 1391 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:51,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3337 states. [2023-12-21 14:13:51,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3337 to 2209. [2023-12-21 14:13:51,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 2208 states have (on average 1.4216485507246377) internal successors, (3139), 2208 states have internal predecessors, (3139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:51,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3139 transitions. [2023-12-21 14:13:51,153 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3139 transitions. Word has length 141 [2023-12-21 14:13:51,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:51,153 INFO L495 AbstractCegarLoop]: Abstraction has 2209 states and 3139 transitions. [2023-12-21 14:13:51,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 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) [2023-12-21 14:13:51,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3139 transitions. [2023-12-21 14:13:51,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 14:13:51,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:51,154 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] [2023-12-21 14:13:51,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2023-12-21 14:13:51,154 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:51,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:51,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1252256947, now seen corresponding path program 1 times [2023-12-21 14:13:51,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:51,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900744899] [2023-12-21 14:13:51,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:51,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:51,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:51,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:51,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900744899] [2023-12-21 14:13:51,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900744899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:51,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:51,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:51,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611155564] [2023-12-21 14:13:51,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:51,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:51,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:51,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:51,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:51,271 INFO L87 Difference]: Start difference. First operand 2209 states and 3139 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) [2023-12-21 14:13:51,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:51,296 INFO L93 Difference]: Finished difference Result 5514 states and 7869 transitions. [2023-12-21 14:13:51,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:51,297 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 [2023-12-21 14:13:51,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:51,299 INFO L225 Difference]: With dead ends: 5514 [2023-12-21 14:13:51,299 INFO L226 Difference]: Without dead ends: 3419 [2023-12-21 14:13:51,300 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 [2023-12-21 14:13:51,301 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 112 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 496 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 [2023-12-21 14:13:51,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 496 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:51,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2023-12-21 14:13:51,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3297. [2023-12-21 14:13:51,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3297 states, 3296 states have (on average 1.416868932038835) internal successors, (4670), 3296 states have internal predecessors, (4670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:51,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 4670 transitions. [2023-12-21 14:13:51,322 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 4670 transitions. Word has length 142 [2023-12-21 14:13:51,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:51,322 INFO L495 AbstractCegarLoop]: Abstraction has 3297 states and 4670 transitions. [2023-12-21 14:13:51,322 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) [2023-12-21 14:13:51,322 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 4670 transitions. [2023-12-21 14:13:51,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 14:13:51,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:51,323 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] [2023-12-21 14:13:51,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2023-12-21 14:13:51,323 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:51,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:51,323 INFO L85 PathProgramCache]: Analyzing trace with hash 496537433, now seen corresponding path program 1 times [2023-12-21 14:13:51,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:51,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824170742] [2023-12-21 14:13:51,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:51,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:51,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:51,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:51,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824170742] [2023-12-21 14:13:51,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824170742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:51,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:51,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:51,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119373845] [2023-12-21 14:13:51,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:51,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:51,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:51,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:51,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:51,379 INFO L87 Difference]: Start difference. First operand 3297 states and 4670 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) [2023-12-21 14:13:51,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:51,403 INFO L93 Difference]: Finished difference Result 6555 states and 9324 transitions. [2023-12-21 14:13:51,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:51,403 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 [2023-12-21 14:13:51,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:51,406 INFO L225 Difference]: With dead ends: 6555 [2023-12-21 14:13:51,406 INFO L226 Difference]: Without dead ends: 3372 [2023-12-21 14:13:51,408 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 [2023-12-21 14:13:51,408 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 133 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 375 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 [2023-12-21 14:13:51,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 375 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:51,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2023-12-21 14:13:51,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 3370. [2023-12-21 14:13:51,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3370 states, 3369 states have (on average 1.4078361531611754) internal successors, (4743), 3369 states have internal predecessors, (4743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:51,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 4743 transitions. [2023-12-21 14:13:51,428 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 4743 transitions. Word has length 143 [2023-12-21 14:13:51,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:51,429 INFO L495 AbstractCegarLoop]: Abstraction has 3370 states and 4743 transitions. [2023-12-21 14:13:51,429 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) [2023-12-21 14:13:51,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 4743 transitions. [2023-12-21 14:13:51,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 14:13:51,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:51,429 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:51,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2023-12-21 14:13:51,430 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:51,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:51,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2093305242, now seen corresponding path program 1 times [2023-12-21 14:13:51,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:51,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784130539] [2023-12-21 14:13:51,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:51,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:51,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:51,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:51,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784130539] [2023-12-21 14:13:51,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784130539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:51,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:51,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:51,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712983323] [2023-12-21 14:13:51,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:51,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:51,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:51,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:51,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:51,520 INFO L87 Difference]: Start difference. First operand 3370 states and 4743 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) [2023-12-21 14:13:51,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:51,546 INFO L93 Difference]: Finished difference Result 9698 states and 13665 transitions. [2023-12-21 14:13:51,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:51,547 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 [2023-12-21 14:13:51,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:51,552 INFO L225 Difference]: With dead ends: 9698 [2023-12-21 14:13:51,552 INFO L226 Difference]: Without dead ends: 6442 [2023-12-21 14:13:51,554 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 [2023-12-21 14:13:51,554 INFO L413 NwaCegarLoop]: 312 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, 493 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 [2023-12-21 14:13:51,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 493 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:51,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6442 states. [2023-12-21 14:13:51,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6442 to 6256. [2023-12-21 14:13:51,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 6255 states have (on average 1.4014388489208633) internal successors, (8766), 6255 states have internal predecessors, (8766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:51,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 8766 transitions. [2023-12-21 14:13:51,595 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 8766 transitions. Word has length 143 [2023-12-21 14:13:51,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:51,595 INFO L495 AbstractCegarLoop]: Abstraction has 6256 states and 8766 transitions. [2023-12-21 14:13:51,595 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) [2023-12-21 14:13:51,595 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 8766 transitions. [2023-12-21 14:13:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-21 14:13:51,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:51,596 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, 1] [2023-12-21 14:13:51,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2023-12-21 14:13:51,596 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:51,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:51,596 INFO L85 PathProgramCache]: Analyzing trace with hash 622820962, now seen corresponding path program 1 times [2023-12-21 14:13:51,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:51,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144584896] [2023-12-21 14:13:51,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:51,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:51,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:51,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:51,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144584896] [2023-12-21 14:13:51,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144584896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:51,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:51,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:51,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281004527] [2023-12-21 14:13:51,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:51,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:51,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:51,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:51,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:51,689 INFO L87 Difference]: Start difference. First operand 6256 states and 8766 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:51,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:51,729 INFO L93 Difference]: Finished difference Result 18172 states and 25412 transitions. [2023-12-21 14:13:51,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:51,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2023-12-21 14:13:51,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:51,740 INFO L225 Difference]: With dead ends: 18172 [2023-12-21 14:13:51,740 INFO L226 Difference]: Without dead ends: 12030 [2023-12-21 14:13:51,745 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 [2023-12-21 14:13:51,745 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 98 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 494 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 [2023-12-21 14:13:51,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 494 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:51,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12030 states. [2023-12-21 14:13:51,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12030 to 11660. [2023-12-21 14:13:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11660 states, 11659 states have (on average 1.3906853074877776) internal successors, (16214), 11659 states have internal predecessors, (16214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:51,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11660 states to 11660 states and 16214 transitions. [2023-12-21 14:13:51,840 INFO L78 Accepts]: Start accepts. Automaton has 11660 states and 16214 transitions. Word has length 144 [2023-12-21 14:13:51,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:51,840 INFO L495 AbstractCegarLoop]: Abstraction has 11660 states and 16214 transitions. [2023-12-21 14:13:51,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:51,840 INFO L276 IsEmpty]: Start isEmpty. Operand 11660 states and 16214 transitions. [2023-12-21 14:13:51,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 14:13:51,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:51,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:51,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2023-12-21 14:13:51,841 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:51,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:51,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1311368210, now seen corresponding path program 1 times [2023-12-21 14:13:51,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:51,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752660908] [2023-12-21 14:13:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:51,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:51,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:51,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:51,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752660908] [2023-12-21 14:13:51,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752660908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:51,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:51,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:51,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720215952] [2023-12-21 14:13:51,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:51,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:51,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:51,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:51,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:51,935 INFO L87 Difference]: Start difference. First operand 11660 states and 16214 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:51,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:51,994 INFO L93 Difference]: Finished difference Result 34016 states and 47112 transitions. [2023-12-21 14:13:51,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:51,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2023-12-21 14:13:51,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:52,013 INFO L225 Difference]: With dead ends: 34016 [2023-12-21 14:13:52,014 INFO L226 Difference]: Without dead ends: 22470 [2023-12-21 14:13:52,025 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 [2023-12-21 14:13:52,025 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 91 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 495 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 [2023-12-21 14:13:52,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 495 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:52,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22470 states. [2023-12-21 14:13:52,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22470 to 21732. [2023-12-21 14:13:52,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21732 states, 21731 states have (on average 1.3765588330035434) internal successors, (29914), 21731 states have internal predecessors, (29914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:52,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21732 states to 21732 states and 29914 transitions. [2023-12-21 14:13:52,240 INFO L78 Accepts]: Start accepts. Automaton has 21732 states and 29914 transitions. Word has length 145 [2023-12-21 14:13:52,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:52,240 INFO L495 AbstractCegarLoop]: Abstraction has 21732 states and 29914 transitions. [2023-12-21 14:13:52,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:52,240 INFO L276 IsEmpty]: Start isEmpty. Operand 21732 states and 29914 transitions. [2023-12-21 14:13:52,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 14:13:52,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:52,240 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, 1, 1, 1] [2023-12-21 14:13:52,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2023-12-21 14:13:52,241 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:52,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:52,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2009698506, now seen corresponding path program 1 times [2023-12-21 14:13:52,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:52,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271847824] [2023-12-21 14:13:52,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:52,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:52,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:52,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:52,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271847824] [2023-12-21 14:13:52,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271847824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:52,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:52,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:52,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516072646] [2023-12-21 14:13:52,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:52,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:52,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:52,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:52,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:52,341 INFO L87 Difference]: Start difference. First operand 21732 states and 29914 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:52,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:52,462 INFO L93 Difference]: Finished difference Result 63496 states and 86924 transitions. [2023-12-21 14:13:52,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:52,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2023-12-21 14:13:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:52,508 INFO L225 Difference]: With dead ends: 63496 [2023-12-21 14:13:52,508 INFO L226 Difference]: Without dead ends: 41878 [2023-12-21 14:13:52,530 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 [2023-12-21 14:13:52,530 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 84 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 495 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 [2023-12-21 14:13:52,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 495 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:52,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41878 states. [2023-12-21 14:13:52,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41878 to 40404. [2023-12-21 14:13:52,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40404 states, 40403 states have (on average 1.359354503378462) internal successors, (54922), 40403 states have internal predecessors, (54922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:52,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40404 states to 40404 states and 54922 transitions. [2023-12-21 14:13:52,898 INFO L78 Accepts]: Start accepts. Automaton has 40404 states and 54922 transitions. Word has length 146 [2023-12-21 14:13:52,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:52,898 INFO L495 AbstractCegarLoop]: Abstraction has 40404 states and 54922 transitions. [2023-12-21 14:13:52,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:52,898 INFO L276 IsEmpty]: Start isEmpty. Operand 40404 states and 54922 transitions. [2023-12-21 14:13:52,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 14:13:52,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:52,898 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, 1, 1, 1, 1] [2023-12-21 14:13:52,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2023-12-21 14:13:52,899 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:52,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:52,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1060024766, now seen corresponding path program 1 times [2023-12-21 14:13:52,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:52,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395438294] [2023-12-21 14:13:52,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:52,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:52,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:52,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395438294] [2023-12-21 14:13:52,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395438294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:52,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:52,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:52,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423015684] [2023-12-21 14:13:52,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:52,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:52,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:52,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:52,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:52,999 INFO L87 Difference]: Start difference. First operand 40404 states and 54922 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:53,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:53,380 INFO L93 Difference]: Finished difference Result 118040 states and 159372 transitions. [2023-12-21 14:13:53,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:53,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2023-12-21 14:13:53,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:53,461 INFO L225 Difference]: With dead ends: 118040 [2023-12-21 14:13:53,461 INFO L226 Difference]: Without dead ends: 77750 [2023-12-21 14:13:53,487 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 [2023-12-21 14:13:53,488 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 74 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 495 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 [2023-12-21 14:13:53,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 495 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:53,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77750 states. [2023-12-21 14:13:54,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77750 to 74804. [2023-12-21 14:13:54,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74804 states, 74803 states have (on average 1.338903519912303) internal successors, (100154), 74803 states have internal predecessors, (100154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74804 states to 74804 states and 100154 transitions. [2023-12-21 14:13:54,629 INFO L78 Accepts]: Start accepts. Automaton has 74804 states and 100154 transitions. Word has length 147 [2023-12-21 14:13:54,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:54,629 INFO L495 AbstractCegarLoop]: Abstraction has 74804 states and 100154 transitions. [2023-12-21 14:13:54,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:54,629 INFO L276 IsEmpty]: Start isEmpty. Operand 74804 states and 100154 transitions. [2023-12-21 14:13:54,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-21 14:13:54,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:54,630 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, 1, 1, 1, 1, 1] [2023-12-21 14:13:54,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2023-12-21 14:13:54,630 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:54,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:54,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1142578166, now seen corresponding path program 1 times [2023-12-21 14:13:54,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:54,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642304950] [2023-12-21 14:13:54,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:54,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:54,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:54,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642304950] [2023-12-21 14:13:54,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642304950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:54,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:54,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 14:13:54,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364302727] [2023-12-21 14:13:54,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:54,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 14:13:54,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:54,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 14:13:54,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 14:13:54,869 INFO L87 Difference]: Start difference. First operand 74804 states and 100154 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:55,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:55,197 INFO L93 Difference]: Finished difference Result 114135 states and 152629 transitions. [2023-12-21 14:13:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 14:13:55,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2023-12-21 14:13:55,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:55,324 INFO L225 Difference]: With dead ends: 114135 [2023-12-21 14:13:55,324 INFO L226 Difference]: Without dead ends: 114133 [2023-12-21 14:13:55,346 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 [2023-12-21 14:13:55,346 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 367 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:55,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1168 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:55,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114133 states. [2023-12-21 14:13:56,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114133 to 76148. [2023-12-21 14:13:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76148 states, 76147 states have (on average 1.3261980117404495) internal successors, (100986), 76147 states have internal predecessors, (100986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:56,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76148 states to 76148 states and 100986 transitions. [2023-12-21 14:13:56,555 INFO L78 Accepts]: Start accepts. Automaton has 76148 states and 100986 transitions. Word has length 148 [2023-12-21 14:13:56,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:56,555 INFO L495 AbstractCegarLoop]: Abstraction has 76148 states and 100986 transitions. [2023-12-21 14:13:56,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:56,555 INFO L276 IsEmpty]: Start isEmpty. Operand 76148 states and 100986 transitions. [2023-12-21 14:13:56,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-21 14:13:56,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:56,561 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, 1, 1, 1, 1, 1] [2023-12-21 14:13:56,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2023-12-21 14:13:56,561 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:56,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:56,562 INFO L85 PathProgramCache]: Analyzing trace with hash 284974615, now seen corresponding path program 1 times [2023-12-21 14:13:56,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:56,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676404649] [2023-12-21 14:13:56,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:56,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:57,262 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:57,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:57,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676404649] [2023-12-21 14:13:57,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676404649] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:13:57,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455141772] [2023-12-21 14:13:57,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:57,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:13:57,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:13:57,264 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) [2023-12-21 14:13:57,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 14:13:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:57,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 1364 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 14:13:57,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:13:58,458 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:58,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:13:59,601 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:59,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455141772] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:13:59,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:13:59,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 29 [2023-12-21 14:13:59,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773174499] [2023-12-21 14:13:59,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:13:59,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-21 14:13:59,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:59,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-21 14:13:59,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=770, Unknown=0, NotChecked=0, Total=870 [2023-12-21 14:13:59,605 INFO L87 Difference]: Start difference. First operand 76148 states and 100986 transitions. Second operand has 30 states, 30 states have (on average 16.733333333333334) internal successors, (502), 29 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:15:03,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:15:03,395 INFO L93 Difference]: Finished difference Result 2290751 states and 2983145 transitions. [2023-12-21 14:15:03,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 713 states. [2023-12-21 14:15:03,396 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 16.733333333333334) internal successors, (502), 29 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2023-12-21 14:15:03,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:15:07,503 INFO L225 Difference]: With dead ends: 2290751 [2023-12-21 14:15:07,504 INFO L226 Difference]: Without dead ends: 2214717 [2023-12-21 14:15:07,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1088 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 739 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253783 ImplicationChecksByTransitivity, 50.2s TimeCoverageRelationStatistics Valid=52462, Invalid=495878, Unknown=0, NotChecked=0, Total=548340 [2023-12-21 14:15:07,887 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 26434 mSDsluCounter, 6317 mSDsCounter, 0 mSdLazyCounter, 7829 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26434 SdHoareTripleChecker+Valid, 6769 SdHoareTripleChecker+Invalid, 7967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 7829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:15:07,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26434 Valid, 6769 Invalid, 7967 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [138 Valid, 7829 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-21 14:15:09,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214717 states. [2023-12-21 14:15:22,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214717 to 375515. [2023-12-21 14:15:22,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375515 states, 375514 states have (on average 1.3162891396858705) internal successors, (494285), 375514 states have internal predecessors, (494285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:15:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375515 states to 375515 states and 494285 transitions. [2023-12-21 14:15:23,577 INFO L78 Accepts]: Start accepts. Automaton has 375515 states and 494285 transitions. Word has length 184 [2023-12-21 14:15:23,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:15:23,577 INFO L495 AbstractCegarLoop]: Abstraction has 375515 states and 494285 transitions. [2023-12-21 14:15:23,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 16.733333333333334) internal successors, (502), 29 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:15:23,577 INFO L276 IsEmpty]: Start isEmpty. Operand 375515 states and 494285 transitions. [2023-12-21 14:15:23,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-21 14:15:23,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:15:23,611 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, 1, 1, 1, 1, 1] [2023-12-21 14:15:23,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-21 14:15:23,811 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,SelfDestructingSolverStorable106 [2023-12-21 14:15:23,812 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:15:23,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:15:23,814 INFO L85 PathProgramCache]: Analyzing trace with hash -400812713, now seen corresponding path program 1 times [2023-12-21 14:15:23,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:15:23,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286876391] [2023-12-21 14:15:23,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:15:23,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:15:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:15:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 14:15:24,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:15:24,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286876391] [2023-12-21 14:15:24,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286876391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:15:24,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:15:24,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:15:24,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415934122] [2023-12-21 14:15:24,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:15:24,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:15:24,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:15:24,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:15:24,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:15:24,081 INFO L87 Difference]: Start difference. First operand 375515 states and 494285 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:15:28,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:15:28,121 INFO L93 Difference]: Finished difference Result 1133591 states and 1489871 transitions. [2023-12-21 14:15:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:15:28,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2023-12-21 14:15:28,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:15:29,254 INFO L225 Difference]: With dead ends: 1133591 [2023-12-21 14:15:29,254 INFO L226 Difference]: Without dead ends: 758249 [2023-12-21 14:15:29,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-21 14:15:29,698 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 804 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:15:29,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 699 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:15:30,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758249 states. [2023-12-21 14:15:35,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758249 to 375515. [2023-12-21 14:15:35,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375515 states, 375514 states have (on average 1.316278487619636) internal successors, (494281), 375514 states have internal predecessors, (494281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:15:36,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375515 states to 375515 states and 494281 transitions. [2023-12-21 14:15:36,213 INFO L78 Accepts]: Start accepts. Automaton has 375515 states and 494281 transitions. Word has length 185 [2023-12-21 14:15:36,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:15:36,213 INFO L495 AbstractCegarLoop]: Abstraction has 375515 states and 494281 transitions. [2023-12-21 14:15:36,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:15:36,213 INFO L276 IsEmpty]: Start isEmpty. Operand 375515 states and 494281 transitions. [2023-12-21 14:15:36,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-21 14:15:36,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:15:36,243 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:15:36,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2023-12-21 14:15:36,243 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:15:36,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:15:36,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1305377554, now seen corresponding path program 1 times [2023-12-21 14:15:36,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:15:36,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29580672] [2023-12-21 14:15:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:15:36,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:15:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:15:36,729 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:15:36,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:15:36,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29580672] [2023-12-21 14:15:36,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29580672] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:15:36,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174840899] [2023-12-21 14:15:36,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:15:36,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:15:36,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:15:36,732 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) [2023-12-21 14:15:36,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 14:15:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:15:37,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-21 14:15:37,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:15:38,082 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:15:38,082 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:15:39,456 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:15:39,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174840899] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:15:39,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:15:39,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 30 [2023-12-21 14:15:39,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393432864] [2023-12-21 14:15:39,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:15:39,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-21 14:15:39,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:15:39,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-21 14:15:39,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=822, Unknown=0, NotChecked=0, Total=930 [2023-12-21 14:15:39,458 INFO L87 Difference]: Start difference. First operand 375515 states and 494281 transitions. Second operand has 31 states, 31 states have (on average 16.483870967741936) internal successors, (511), 30 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)