/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+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 14:10:51,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 14:10:51,389 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 14:10:51,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 14:10:51,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 14:10:51,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 14:10:51,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 14:10:51,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 14:10:51,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 14:10:51,420 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 14:10:51,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 14:10:51,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 14:10:51,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 14:10:51,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 14:10:51,422 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 14:10:51,422 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 14:10:51,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 14:10:51,422 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 14:10:51,422 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 14:10:51,423 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 14:10:51,424 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 14:10:51,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 14:10:51,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 14:10:51,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 14:10:51,424 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 14:10:51,425 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 14:10:51,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 14:10:51,425 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 14:10:51,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 14:10:51,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 14:10:51,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 14:10:51,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 14:10:51,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:10:51,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 14:10:51,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 14:10:51,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 14:10:51,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 14:10:51,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 14:10:51,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 14:10:51,427 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 14:10:51,427 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 14:10:51,428 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 14:10:51,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 14:10:51,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 14:10:51,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 14:10:51,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 14:10:51,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 14:10:51,651 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 14:10:51,651 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 14:10:51,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-12-21 14:10:52,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 14:10:53,104 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 14:10:53,105 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-12-21 14:10:53,133 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45f17056c/3971a79e1c624b58b36af0a84b5bea2f/FLAGe94ad8bf9 [2023-12-21 14:10:53,147 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45f17056c/3971a79e1c624b58b36af0a84b5bea2f [2023-12-21 14:10:53,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 14:10:53,150 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 14:10:53,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 14:10:53,151 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 14:10:53,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 14:10:53,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:10:53" (1/1) ... [2023-12-21 14:10:53,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e8faa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:53, skipping insertion in model container [2023-12-21 14:10:53,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:10:53" (1/1) ... [2023-12-21 14:10:53,252 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 14:10:53,551 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2023-12-21 14:10:53,573 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2023-12-21 14:10:53,583 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2023-12-21 14:10:53,615 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2023-12-21 14:10:53,622 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2023-12-21 14:10:53,626 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2023-12-21 14:10:53,630 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2023-12-21 14:10:53,639 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2023-12-21 14:10:53,643 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2023-12-21 14:10:53,647 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2023-12-21 14:10:53,655 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2023-12-21 14:10:53,668 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2023-12-21 14:10:53,672 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2023-12-21 14:10:53,676 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2023-12-21 14:10:53,682 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2023-12-21 14:10:53,692 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2023-12-21 14:10:53,717 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+lhb-reducer.c[50005,50018] [2023-12-21 14:10:53,720 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2023-12-21 14:10:53,724 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2023-12-21 14:10:53,731 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2023-12-21 14:10:53,747 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2023-12-21 14:10:53,764 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2023-12-21 14:10:54,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:10:54,078 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 14:10:54,118 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2023-12-21 14:10:54,134 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2023-12-21 14:10:54,138 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2023-12-21 14:10:54,141 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2023-12-21 14:10:54,144 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2023-12-21 14:10:54,146 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2023-12-21 14:10:54,149 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2023-12-21 14:10:54,154 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2023-12-21 14:10:54,157 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2023-12-21 14:10:54,159 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2023-12-21 14:10:54,164 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2023-12-21 14:10:54,179 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+lhb-reducer.c[35189,35202] [2023-12-21 14:10:54,182 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2023-12-21 14:10:54,184 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2023-12-21 14:10:54,191 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2023-12-21 14:10:54,199 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2023-12-21 14:10:54,217 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2023-12-21 14:10:54,220 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2023-12-21 14:10:54,223 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2023-12-21 14:10:54,232 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2023-12-21 14:10:54,241 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2023-12-21 14:10:54,251 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2023-12-21 14:10:54,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:10:54,436 INFO L206 MainTranslator]: Completed translation [2023-12-21 14:10:54,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54 WrapperNode [2023-12-21 14:10:54,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 14:10:54,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 14:10:54,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 14:10:54,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 14:10:54,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (1/1) ... [2023-12-21 14:10:54,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (1/1) ... [2023-12-21 14:10:54,556 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7077 [2023-12-21 14:10:54,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 14:10:54,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 14:10:54,557 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 14:10:54,557 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 14:10:54,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (1/1) ... [2023-12-21 14:10:54,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (1/1) ... [2023-12-21 14:10:54,581 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (1/1) ... [2023-12-21 14:10:54,627 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 14:10:54,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (1/1) ... [2023-12-21 14:10:54,628 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (1/1) ... [2023-12-21 14:10:54,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (1/1) ... [2023-12-21 14:10:54,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (1/1) ... [2023-12-21 14:10:54,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (1/1) ... [2023-12-21 14:10:54,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (1/1) ... [2023-12-21 14:10:54,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 14:10:54,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 14:10:54,741 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 14:10:54,741 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 14:10:54,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (1/1) ... [2023-12-21 14:10:54,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:10:54,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:10:54,764 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 14:10:54,773 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 14:10:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 14:10:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 14:10:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 14:10:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 14:10:54,990 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 14:10:54,992 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 14:10:57,089 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 14:10:57,150 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 14:10:57,151 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 14:10:57,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:10:57 BoogieIcfgContainer [2023-12-21 14:10:57,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 14:10:57,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 14:10:57,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 14:10:57,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 14:10:57,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:10:53" (1/3) ... [2023-12-21 14:10:57,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5bc157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:10:57, skipping insertion in model container [2023-12-21 14:10:57,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:10:54" (2/3) ... [2023-12-21 14:10:57,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5bc157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:10:57, skipping insertion in model container [2023-12-21 14:10:57,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:10:57" (3/3) ... [2023-12-21 14:10:57,157 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-12-21 14:10:57,170 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 14:10:57,170 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-12-21 14:10:57,228 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 14:10:57,232 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;@417c0dc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 14:10:57,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-12-21 14:10:57,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 1129 states, 1106 states have (on average 1.8571428571428572) internal successors, (2054), 1128 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:10:57,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 14:10:57,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:10:57,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:10:57,258 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 14:10:57,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:10:57,262 INFO L85 PathProgramCache]: Analyzing trace with hash 714056904, now seen corresponding path program 1 times [2023-12-21 14:10:57,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:10:57,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051375567] [2023-12-21 14:10:57,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:10:57,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:10:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:10:57,655 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 14:10:57,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:10:57,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051375567] [2023-12-21 14:10:57,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051375567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:10:57,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:10:57,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:10:57,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463325522] [2023-12-21 14:10:57,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:10:57,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:10:57,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:10:57,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:10:57,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:10:57,684 INFO L87 Difference]: Start difference. First operand has 1129 states, 1106 states have (on average 1.8571428571428572) internal successors, (2054), 1128 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:10:58,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:10:58,214 INFO L93 Difference]: Finished difference Result 1710 states and 3007 transitions. [2023-12-21 14:10:58,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:10:58,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-21 14:10:58,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:10:58,227 INFO L225 Difference]: With dead ends: 1710 [2023-12-21 14:10:58,227 INFO L226 Difference]: Without dead ends: 883 [2023-12-21 14:10:58,231 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 14:10:58,233 INFO L413 NwaCegarLoop]: 1023 mSDtfsCounter, 4520 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:10:58,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4520 Valid, 1063 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:10:58,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2023-12-21 14:10:58,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2023-12-21 14:10:58,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 861 states have (on average 1.3147502903600465) internal successors, (1132), 882 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:10:58,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1132 transitions. [2023-12-21 14:10:58,327 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1132 transitions. Word has length 85 [2023-12-21 14:10:58,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:10:58,327 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1132 transitions. [2023-12-21 14:10:58,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:10:58,328 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1132 transitions. [2023-12-21 14:10:58,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 14:10:58,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:10:58,330 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] [2023-12-21 14:10:58,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 14:10:58,331 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:10:58,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:10:58,331 INFO L85 PathProgramCache]: Analyzing trace with hash -32531416, now seen corresponding path program 1 times [2023-12-21 14:10:58,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:10:58,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134135564] [2023-12-21 14:10:58,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:10:58,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:10:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:10:58,463 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 14:10:58,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:10:58,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134135564] [2023-12-21 14:10:58,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134135564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:10:58,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:10:58,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:10:58,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051753053] [2023-12-21 14:10:58,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:10:58,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:10:58,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:10:58,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:10:58,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:10:58,466 INFO L87 Difference]: Start difference. First operand 883 states and 1132 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:10:58,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:10:58,903 INFO L93 Difference]: Finished difference Result 1458 states and 1925 transitions. [2023-12-21 14:10:58,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:10:58,904 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 14:10:58,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:10:58,907 INFO L225 Difference]: With dead ends: 1458 [2023-12-21 14:10:58,907 INFO L226 Difference]: Without dead ends: 752 [2023-12-21 14:10:58,909 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 14:10:58,912 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 2900 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2900 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:10:58,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2900 Valid, 574 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:10:58,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-12-21 14:10:58,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2023-12-21 14:10:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 730 states have (on average 1.347945205479452) internal successors, (984), 751 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:10:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 984 transitions. [2023-12-21 14:10:58,935 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 984 transitions. Word has length 86 [2023-12-21 14:10:58,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:10:58,936 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 984 transitions. [2023-12-21 14:10:58,937 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 14:10:58,939 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 984 transitions. [2023-12-21 14:10:58,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-21 14:10:58,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:10:58,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:10:58,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 14:10:58,946 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:10:58,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:10:58,948 INFO L85 PathProgramCache]: Analyzing trace with hash -15254791, now seen corresponding path program 1 times [2023-12-21 14:10:58,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:10:58,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251498578] [2023-12-21 14:10:58,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:10:58,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:10:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:10:59,157 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 14:10:59,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:10:59,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251498578] [2023-12-21 14:10:59,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251498578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:10:59,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:10:59,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:10:59,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918663722] [2023-12-21 14:10:59,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:10:59,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:10:59,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:10:59,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:10:59,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:10:59,159 INFO L87 Difference]: Start difference. First operand 752 states and 984 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:10:59,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:10:59,573 INFO L93 Difference]: Finished difference Result 1327 states and 1776 transitions. [2023-12-21 14:10:59,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:10:59,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-21 14:10:59,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:10:59,576 INFO L225 Difference]: With dead ends: 1327 [2023-12-21 14:10:59,576 INFO L226 Difference]: Without dead ends: 712 [2023-12-21 14:10:59,577 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 14:10:59,577 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 2670 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2670 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:10:59,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2670 Valid, 471 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:10:59,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2023-12-21 14:10:59,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2023-12-21 14:10:59,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 690 states have (on average 1.355072463768116) internal successors, (935), 711 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:10:59,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 935 transitions. [2023-12-21 14:10:59,589 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 935 transitions. Word has length 87 [2023-12-21 14:10:59,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:10:59,603 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 935 transitions. [2023-12-21 14:10:59,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:10:59,604 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 935 transitions. [2023-12-21 14:10:59,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-21 14:10:59,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:10:59,606 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 14:10:59,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 14:10:59,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:10:59,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:10:59,606 INFO L85 PathProgramCache]: Analyzing trace with hash -792677777, now seen corresponding path program 1 times [2023-12-21 14:10:59,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:10:59,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435954692] [2023-12-21 14:10:59,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:10:59,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:10:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:10:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:10:59,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:10:59,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435954692] [2023-12-21 14:10:59,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435954692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:10:59,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:10:59,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:10:59,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331991572] [2023-12-21 14:10:59,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:10:59,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:10:59,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:10:59,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:10:59,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:10:59,793 INFO L87 Difference]: Start difference. First operand 712 states and 935 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:00,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:00,147 INFO L93 Difference]: Finished difference Result 1287 states and 1726 transitions. [2023-12-21 14:11:00,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:11:00,147 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 14:11:00,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:00,151 INFO L225 Difference]: With dead ends: 1287 [2023-12-21 14:11:00,151 INFO L226 Difference]: Without dead ends: 674 [2023-12-21 14:11:00,151 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 14:11:00,155 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 2585 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2585 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:00,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2585 Valid, 511 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:11:00,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2023-12-21 14:11:00,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 674. [2023-12-21 14:11:00,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 652 states have (on average 1.3680981595092025) internal successors, (892), 673 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:00,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 892 transitions. [2023-12-21 14:11:00,167 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 892 transitions. Word has length 88 [2023-12-21 14:11:00,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:00,168 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 892 transitions. [2023-12-21 14:11:00,168 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 14:11:00,168 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 892 transitions. [2023-12-21 14:11:00,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-21 14:11:00,169 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:00,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:00,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 14:11:00,169 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:00,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:00,170 INFO L85 PathProgramCache]: Analyzing trace with hash -98223662, now seen corresponding path program 1 times [2023-12-21 14:11:00,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:00,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081380200] [2023-12-21 14:11:00,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:00,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:00,252 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 14:11:00,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:00,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081380200] [2023-12-21 14:11:00,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081380200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:00,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:00,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:11:00,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309210878] [2023-12-21 14:11:00,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:00,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:11:00,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:00,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:11:00,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:11:00,254 INFO L87 Difference]: Start difference. First operand 674 states and 892 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:00,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:00,546 INFO L93 Difference]: Finished difference Result 1249 states and 1682 transitions. [2023-12-21 14:11:00,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:11:00,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-21 14:11:00,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:00,548 INFO L225 Difference]: With dead ends: 1249 [2023-12-21 14:11:00,548 INFO L226 Difference]: Without dead ends: 649 [2023-12-21 14:11:00,549 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 14:11:00,550 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 2528 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2528 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:00,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2528 Valid, 498 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:11:00,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2023-12-21 14:11:00,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2023-12-21 14:11:00,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.3779904306220097) internal successors, (864), 648 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:00,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 864 transitions. [2023-12-21 14:11:00,559 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 864 transitions. Word has length 89 [2023-12-21 14:11:00,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:00,560 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 864 transitions. [2023-12-21 14:11:00,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:00,560 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 864 transitions. [2023-12-21 14:11:00,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 14:11:00,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:00,561 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 14:11:00,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 14:11:00,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:00,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:00,561 INFO L85 PathProgramCache]: Analyzing trace with hash -887858356, now seen corresponding path program 1 times [2023-12-21 14:11:00,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:00,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762155172] [2023-12-21 14:11:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:00,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:00,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:00,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:00,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762155172] [2023-12-21 14:11:00,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762155172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:00,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:00,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:11:00,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753390911] [2023-12-21 14:11:00,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:00,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:11:00,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:00,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:11:00,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:11:00,650 INFO L87 Difference]: Start difference. First operand 649 states and 864 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:00,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:00,997 INFO L93 Difference]: Finished difference Result 1224 states and 1653 transitions. [2023-12-21 14:11:00,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:11:00,998 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 14:11:00,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:01,000 INFO L225 Difference]: With dead ends: 1224 [2023-12-21 14:11:01,000 INFO L226 Difference]: Without dead ends: 641 [2023-12-21 14:11:01,000 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 14:11:01,001 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 2451 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2451 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:01,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2451 Valid, 474 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:11:01,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-12-21 14:11:01,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2023-12-21 14:11:01,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3796445880452342) internal successors, (854), 640 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:01,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 854 transitions. [2023-12-21 14:11:01,008 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 854 transitions. Word has length 90 [2023-12-21 14:11:01,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:01,009 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 854 transitions. [2023-12-21 14:11:01,010 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 14:11:01,010 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 854 transitions. [2023-12-21 14:11:01,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-21 14:11:01,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:01,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:01,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 14:11:01,011 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:01,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:01,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1395319451, now seen corresponding path program 1 times [2023-12-21 14:11:01,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:01,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701004107] [2023-12-21 14:11:01,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:01,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:01,284 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 14:11:01,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:01,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701004107] [2023-12-21 14:11:01,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701004107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:01,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:01,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:01,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486087553] [2023-12-21 14:11:01,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:01,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:01,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:01,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:01,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:01,286 INFO L87 Difference]: Start difference. First operand 641 states and 854 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:02,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:02,085 INFO L93 Difference]: Finished difference Result 1231 states and 1667 transitions. [2023-12-21 14:11:02,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:02,085 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-21 14:11:02,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:02,088 INFO L225 Difference]: With dead ends: 1231 [2023-12-21 14:11:02,088 INFO L226 Difference]: Without dead ends: 1131 [2023-12-21 14:11:02,089 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 14:11:02,089 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 3932 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3932 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:02,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3932 Valid, 2226 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:11:02,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-21 14:11:02,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-21 14:11:02,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3780290791599354) internal successors, (853), 640 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:02,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 853 transitions. [2023-12-21 14:11:02,109 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 853 transitions. Word has length 91 [2023-12-21 14:11:02,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:02,109 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 853 transitions. [2023-12-21 14:11:02,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:02,109 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 853 transitions. [2023-12-21 14:11:02,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-21 14:11:02,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:02,110 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] [2023-12-21 14:11:02,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 14:11:02,111 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:02,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:02,111 INFO L85 PathProgramCache]: Analyzing trace with hash 897316485, now seen corresponding path program 1 times [2023-12-21 14:11:02,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:02,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365984439] [2023-12-21 14:11:02,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:02,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:02,608 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 14:11:02,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:02,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365984439] [2023-12-21 14:11:02,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365984439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:02,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:02,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:11:02,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977206400] [2023-12-21 14:11:02,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:02,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:11:02,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:02,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:11:02,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:11:02,610 INFO L87 Difference]: Start difference. First operand 641 states and 853 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:03,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:03,818 INFO L93 Difference]: Finished difference Result 1326 states and 1781 transitions. [2023-12-21 14:11:03,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 14:11:03,819 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-21 14:11:03,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:03,822 INFO L225 Difference]: With dead ends: 1326 [2023-12-21 14:11:03,822 INFO L226 Difference]: Without dead ends: 1217 [2023-12-21 14:11:03,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2023-12-21 14:11:03,824 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 2948 mSDsluCounter, 2500 mSDsCounter, 0 mSdLazyCounter, 2361 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2948 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:03,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2948 Valid, 3013 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2361 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:03,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2023-12-21 14:11:03,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 650. [2023-12-21 14:11:03,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 628 states have (on average 1.377388535031847) internal successors, (865), 649 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:03,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 865 transitions. [2023-12-21 14:11:03,835 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 865 transitions. Word has length 91 [2023-12-21 14:11:03,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:03,836 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 865 transitions. [2023-12-21 14:11:03,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:03,836 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 865 transitions. [2023-12-21 14:11:03,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-21 14:11:03,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:03,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:03,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 14:11:03,837 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:03,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:03,837 INFO L85 PathProgramCache]: Analyzing trace with hash 488471257, now seen corresponding path program 1 times [2023-12-21 14:11:03,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:03,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312205895] [2023-12-21 14:11:03,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:03,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:04,111 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 14:11:04,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:04,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312205895] [2023-12-21 14:11:04,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312205895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:04,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:04,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:04,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017117805] [2023-12-21 14:11:04,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:04,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:04,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:04,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:04,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:04,113 INFO L87 Difference]: Start difference. First operand 650 states and 865 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:05,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:05,173 INFO L93 Difference]: Finished difference Result 1337 states and 1816 transitions. [2023-12-21 14:11:05,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:05,174 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-21 14:11:05,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:05,177 INFO L225 Difference]: With dead ends: 1337 [2023-12-21 14:11:05,177 INFO L226 Difference]: Without dead ends: 1143 [2023-12-21 14:11:05,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:11:05,179 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 2300 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2300 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 2203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:05,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2300 Valid, 2819 Invalid, 2203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2199 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:05,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2023-12-21 14:11:05,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 641. [2023-12-21 14:11:05,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3764135702746365) internal successors, (852), 640 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:05,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 852 transitions. [2023-12-21 14:11:05,190 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 852 transitions. Word has length 91 [2023-12-21 14:11:05,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:05,190 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 852 transitions. [2023-12-21 14:11:05,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:05,191 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 852 transitions. [2023-12-21 14:11:05,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-21 14:11:05,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:05,192 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] [2023-12-21 14:11:05,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 14:11:05,192 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:05,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:05,193 INFO L85 PathProgramCache]: Analyzing trace with hash -977341548, now seen corresponding path program 1 times [2023-12-21 14:11:05,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:05,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418326184] [2023-12-21 14:11:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:05,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:05,488 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 14:11:05,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:05,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418326184] [2023-12-21 14:11:05,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418326184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:05,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:05,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 14:11:05,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860960172] [2023-12-21 14:11:05,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:05,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:11:05,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:05,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:11:05,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:11:05,490 INFO L87 Difference]: Start difference. First operand 641 states and 852 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:06,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:06,524 INFO L93 Difference]: Finished difference Result 1236 states and 1669 transitions. [2023-12-21 14:11:06,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 14:11:06,525 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-21 14:11:06,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:06,528 INFO L225 Difference]: With dead ends: 1236 [2023-12-21 14:11:06,528 INFO L226 Difference]: Without dead ends: 1127 [2023-12-21 14:11:06,528 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 14:11:06,529 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 4175 mSDsluCounter, 2487 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4175 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:06,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4175 Valid, 2977 Invalid, 2292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2289 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:06,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-12-21 14:11:06,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 641. [2023-12-21 14:11:06,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3747980613893376) internal successors, (851), 640 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:06,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 851 transitions. [2023-12-21 14:11:06,540 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 851 transitions. Word has length 91 [2023-12-21 14:11:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:06,540 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 851 transitions. [2023-12-21 14:11:06,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:06,540 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 851 transitions. [2023-12-21 14:11:06,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-21 14:11:06,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:06,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:06,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 14:11:06,541 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:06,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:06,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1386186776, now seen corresponding path program 1 times [2023-12-21 14:11:06,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:06,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188061281] [2023-12-21 14:11:06,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:06,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:06,731 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 14:11:06,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:06,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188061281] [2023-12-21 14:11:06,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188061281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:06,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:06,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 14:11:06,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573308523] [2023-12-21 14:11:06,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:06,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:11:06,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:06,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:11:06,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:11:06,733 INFO L87 Difference]: Start difference. First operand 641 states and 851 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:07,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:07,332 INFO L93 Difference]: Finished difference Result 1211 states and 1565 transitions. [2023-12-21 14:11:07,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:11:07,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-21 14:11:07,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:07,336 INFO L225 Difference]: With dead ends: 1211 [2023-12-21 14:11:07,336 INFO L226 Difference]: Without dead ends: 864 [2023-12-21 14:11:07,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:11:07,337 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 2836 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:07,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 1043 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:11:07,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2023-12-21 14:11:07,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 641. [2023-12-21 14:11:07,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3731825525040389) internal successors, (850), 640 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:07,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 850 transitions. [2023-12-21 14:11:07,346 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 850 transitions. Word has length 91 [2023-12-21 14:11:07,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:07,346 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 850 transitions. [2023-12-21 14:11:07,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:07,346 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 850 transitions. [2023-12-21 14:11:07,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 14:11:07,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:07,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:07,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 14:11:07,348 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:07,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:07,348 INFO L85 PathProgramCache]: Analyzing trace with hash 212783759, now seen corresponding path program 1 times [2023-12-21 14:11:07,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:07,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74335433] [2023-12-21 14:11:07,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:07,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:07,595 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 14:11:07,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:07,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74335433] [2023-12-21 14:11:07,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74335433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:07,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:07,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:07,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129600754] [2023-12-21 14:11:07,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:07,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:07,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:07,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:07,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:07,597 INFO L87 Difference]: Start difference. First operand 641 states and 850 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:08,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:08,619 INFO L93 Difference]: Finished difference Result 1366 states and 1838 transitions. [2023-12-21 14:11:08,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:08,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-21 14:11:08,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:08,622 INFO L225 Difference]: With dead ends: 1366 [2023-12-21 14:11:08,622 INFO L226 Difference]: Without dead ends: 1143 [2023-12-21 14:11:08,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:11:08,623 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 2995 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2995 SdHoareTripleChecker+Valid, 2940 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:08,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2995 Valid, 2940 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:08,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2023-12-21 14:11:08,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 641. [2023-12-21 14:11:08,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.37156704361874) internal successors, (849), 640 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:08,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 849 transitions. [2023-12-21 14:11:08,632 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 849 transitions. Word has length 93 [2023-12-21 14:11:08,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:08,632 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 849 transitions. [2023-12-21 14:11:08,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:08,633 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 849 transitions. [2023-12-21 14:11:08,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 14:11:08,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:08,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:08,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 14:11:08,634 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:08,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:08,634 INFO L85 PathProgramCache]: Analyzing trace with hash 426483258, now seen corresponding path program 1 times [2023-12-21 14:11:08,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:08,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577963536] [2023-12-21 14:11:08,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:08,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:08,846 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 14:11:08,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:08,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577963536] [2023-12-21 14:11:08,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577963536] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:08,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:08,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:08,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690954790] [2023-12-21 14:11:08,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:08,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:08,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:08,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:08,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:08,849 INFO L87 Difference]: Start difference. First operand 641 states and 849 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:09,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:09,833 INFO L93 Difference]: Finished difference Result 1231 states and 1661 transitions. [2023-12-21 14:11:09,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:09,834 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-21 14:11:09,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:09,837 INFO L225 Difference]: With dead ends: 1231 [2023-12-21 14:11:09,837 INFO L226 Difference]: Without dead ends: 1131 [2023-12-21 14:11:09,837 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 14:11:09,838 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 2489 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:09,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 2293 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:11:09,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-21 14:11:09,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-21 14:11:09,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.369951534733441) internal successors, (848), 640 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:09,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 848 transitions. [2023-12-21 14:11:09,846 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 848 transitions. Word has length 93 [2023-12-21 14:11:09,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:09,846 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 848 transitions. [2023-12-21 14:11:09,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:09,846 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 848 transitions. [2023-12-21 14:11:09,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 14:11:09,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:09,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:09,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 14:11:09,847 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:09,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:09,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1453025680, now seen corresponding path program 1 times [2023-12-21 14:11:09,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:09,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965064482] [2023-12-21 14:11:09,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:09,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:10,014 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 14:11:10,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:10,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965064482] [2023-12-21 14:11:10,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965064482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:10,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:10,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:10,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526786017] [2023-12-21 14:11:10,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:10,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:10,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:10,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:10,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:10,016 INFO L87 Difference]: Start difference. First operand 641 states and 848 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:10,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:10,963 INFO L93 Difference]: Finished difference Result 1240 states and 1667 transitions. [2023-12-21 14:11:10,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:10,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-21 14:11:10,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:10,967 INFO L225 Difference]: With dead ends: 1240 [2023-12-21 14:11:10,967 INFO L226 Difference]: Without dead ends: 1131 [2023-12-21 14:11:10,967 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 14:11:10,968 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 3850 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3850 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 1800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:10,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3850 Valid, 2281 Invalid, 1800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:11:10,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-21 14:11:10,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-21 14:11:10,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.368336025848142) internal successors, (847), 640 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:10,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 847 transitions. [2023-12-21 14:11:10,979 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 847 transitions. Word has length 93 [2023-12-21 14:11:10,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:10,979 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 847 transitions. [2023-12-21 14:11:10,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:10,979 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 847 transitions. [2023-12-21 14:11:10,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 14:11:10,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:10,980 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] [2023-12-21 14:11:10,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 14:11:10,980 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:10,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:10,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1861870908, now seen corresponding path program 1 times [2023-12-21 14:11:10,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:10,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289023823] [2023-12-21 14:11:10,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:10,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:11,215 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 14:11:11,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:11,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289023823] [2023-12-21 14:11:11,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289023823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:11,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:11,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:11,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346494124] [2023-12-21 14:11:11,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:11,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:11,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:11,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:11,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:11,216 INFO L87 Difference]: Start difference. First operand 641 states and 847 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:12,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:12,334 INFO L93 Difference]: Finished difference Result 1278 states and 1724 transitions. [2023-12-21 14:11:12,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:12,334 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-21 14:11:12,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:12,337 INFO L225 Difference]: With dead ends: 1278 [2023-12-21 14:11:12,337 INFO L226 Difference]: Without dead ends: 1139 [2023-12-21 14:11:12,338 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 14:11:12,338 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 2975 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 2524 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2975 SdHoareTripleChecker+Valid, 3286 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:12,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2975 Valid, 3286 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2524 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:12,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-12-21 14:11:12,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 641. [2023-12-21 14:11:12,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3667205169628434) internal successors, (846), 640 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:12,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 846 transitions. [2023-12-21 14:11:12,347 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 846 transitions. Word has length 93 [2023-12-21 14:11:12,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:12,348 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 846 transitions. [2023-12-21 14:11:12,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:12,348 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 846 transitions. [2023-12-21 14:11:12,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 14:11:12,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:12,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:12,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 14:11:12,349 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:12,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:12,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1321108389, now seen corresponding path program 1 times [2023-12-21 14:11:12,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:12,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674891556] [2023-12-21 14:11:12,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:12,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:12,530 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 14:11:12,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:12,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674891556] [2023-12-21 14:11:12,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674891556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:12,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:12,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:12,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283606915] [2023-12-21 14:11:12,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:12,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:12,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:12,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:12,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:12,533 INFO L87 Difference]: Start difference. First operand 641 states and 846 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:13,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:13,421 INFO L93 Difference]: Finished difference Result 1240 states and 1666 transitions. [2023-12-21 14:11:13,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:13,421 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-21 14:11:13,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:13,424 INFO L225 Difference]: With dead ends: 1240 [2023-12-21 14:11:13,424 INFO L226 Difference]: Without dead ends: 1131 [2023-12-21 14:11:13,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:11:13,425 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 2775 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2775 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:13,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2775 Valid, 2271 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:11:13,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-21 14:11:13,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-21 14:11:13,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3651050080775444) internal successors, (845), 640 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:13,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 845 transitions. [2023-12-21 14:11:13,454 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 845 transitions. Word has length 93 [2023-12-21 14:11:13,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:13,455 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 845 transitions. [2023-12-21 14:11:13,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:13,455 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 845 transitions. [2023-12-21 14:11:13,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 14:11:13,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:13,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:13,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 14:11:13,456 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:13,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:13,456 INFO L85 PathProgramCache]: Analyzing trace with hash 912263161, now seen corresponding path program 1 times [2023-12-21 14:11:13,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:13,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772161930] [2023-12-21 14:11:13,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:13,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:13,654 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 14:11:13,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:13,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772161930] [2023-12-21 14:11:13,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772161930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:13,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:13,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:13,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698280888] [2023-12-21 14:11:13,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:13,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:13,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:13,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:13,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:13,655 INFO L87 Difference]: Start difference. First operand 641 states and 845 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:14,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:14,834 INFO L93 Difference]: Finished difference Result 1278 states and 1724 transitions. [2023-12-21 14:11:14,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:14,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-21 14:11:14,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:14,838 INFO L225 Difference]: With dead ends: 1278 [2023-12-21 14:11:14,838 INFO L226 Difference]: Without dead ends: 1139 [2023-12-21 14:11:14,838 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 14:11:14,840 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 3272 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 2361 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3272 SdHoareTripleChecker+Valid, 3113 SdHoareTripleChecker+Invalid, 2366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:14,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3272 Valid, 3113 Invalid, 2366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2361 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:14,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-12-21 14:11:14,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 641. [2023-12-21 14:11:14,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3634894991922455) internal successors, (844), 640 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:14,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 844 transitions. [2023-12-21 14:11:14,847 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 844 transitions. Word has length 93 [2023-12-21 14:11:14,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:14,847 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 844 transitions. [2023-12-21 14:11:14,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:14,847 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 844 transitions. [2023-12-21 14:11:14,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 14:11:14,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:14,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:14,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 14:11:14,850 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:14,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:14,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1094349969, now seen corresponding path program 1 times [2023-12-21 14:11:14,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:14,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962987806] [2023-12-21 14:11:14,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:14,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:15,015 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 14:11:15,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:15,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962987806] [2023-12-21 14:11:15,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962987806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:15,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:15,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:15,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654655948] [2023-12-21 14:11:15,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:15,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:15,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:15,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:15,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:15,017 INFO L87 Difference]: Start difference. First operand 641 states and 844 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:15,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:15,949 INFO L93 Difference]: Finished difference Result 1231 states and 1655 transitions. [2023-12-21 14:11:15,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:15,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-21 14:11:15,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:15,952 INFO L225 Difference]: With dead ends: 1231 [2023-12-21 14:11:15,952 INFO L226 Difference]: Without dead ends: 1131 [2023-12-21 14:11:15,953 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 14:11:15,954 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 3418 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3418 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:15,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3418 Valid, 2666 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:11:15,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-21 14:11:15,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-21 14:11:15,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3618739903069468) internal successors, (843), 640 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:15,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 843 transitions. [2023-12-21 14:11:15,962 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 843 transitions. Word has length 93 [2023-12-21 14:11:15,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:15,962 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 843 transitions. [2023-12-21 14:11:15,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:15,962 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 843 transitions. [2023-12-21 14:11:15,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 14:11:15,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:15,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:15,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 14:11:15,963 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:15,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:15,964 INFO L85 PathProgramCache]: Analyzing trace with hash -742152744, now seen corresponding path program 1 times [2023-12-21 14:11:15,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:15,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737900100] [2023-12-21 14:11:15,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:15,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:16,210 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 14:11:16,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:16,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737900100] [2023-12-21 14:11:16,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737900100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:16,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:16,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:16,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473331667] [2023-12-21 14:11:16,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:16,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:16,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:16,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:16,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:16,213 INFO L87 Difference]: Start difference. First operand 641 states and 843 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:17,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:17,338 INFO L93 Difference]: Finished difference Result 1264 states and 1706 transitions. [2023-12-21 14:11:17,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:17,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-21 14:11:17,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:17,341 INFO L225 Difference]: With dead ends: 1264 [2023-12-21 14:11:17,341 INFO L226 Difference]: Without dead ends: 1139 [2023-12-21 14:11:17,342 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 14:11:17,342 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 3238 mSDsluCounter, 2863 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:17,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3238 Valid, 3685 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2458 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:17,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-12-21 14:11:17,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 641. [2023-12-21 14:11:17,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3602584814216478) internal successors, (842), 640 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:17,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 842 transitions. [2023-12-21 14:11:17,349 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 842 transitions. Word has length 93 [2023-12-21 14:11:17,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:17,349 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 842 transitions. [2023-12-21 14:11:17,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:17,350 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 842 transitions. [2023-12-21 14:11:17,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 14:11:17,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:17,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:17,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 14:11:17,351 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:17,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:17,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1210703433, now seen corresponding path program 1 times [2023-12-21 14:11:17,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:17,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633460688] [2023-12-21 14:11:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:17,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:17,568 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 14:11:17,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:17,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633460688] [2023-12-21 14:11:17,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633460688] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:17,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:17,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:17,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825354365] [2023-12-21 14:11:17,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:17,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:17,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:17,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:17,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:17,570 INFO L87 Difference]: Start difference. First operand 641 states and 842 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:18,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:18,586 INFO L93 Difference]: Finished difference Result 1226 states and 1648 transitions. [2023-12-21 14:11:18,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:18,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-21 14:11:18,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:18,589 INFO L225 Difference]: With dead ends: 1226 [2023-12-21 14:11:18,589 INFO L226 Difference]: Without dead ends: 1131 [2023-12-21 14:11:18,589 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 14:11:18,590 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 2256 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 2183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:18,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 2779 Invalid, 2183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:18,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-21 14:11:18,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-21 14:11:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.358642972536349) internal successors, (841), 640 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:18,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 841 transitions. [2023-12-21 14:11:18,604 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 841 transitions. Word has length 93 [2023-12-21 14:11:18,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:18,604 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 841 transitions. [2023-12-21 14:11:18,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:18,604 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 841 transitions. [2023-12-21 14:11:18,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:18,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:18,605 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 14:11:18,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 14:11:18,605 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:18,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:18,605 INFO L85 PathProgramCache]: Analyzing trace with hash 428439914, now seen corresponding path program 1 times [2023-12-21 14:11:18,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:18,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061258208] [2023-12-21 14:11:18,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:18,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:18,797 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 14:11:18,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:18,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061258208] [2023-12-21 14:11:18,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061258208] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:18,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:18,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:18,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82733093] [2023-12-21 14:11:18,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:18,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:18,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:18,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:18,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:18,800 INFO L87 Difference]: Start difference. First operand 641 states and 841 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:19,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:19,948 INFO L93 Difference]: Finished difference Result 1202 states and 1608 transitions. [2023-12-21 14:11:19,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:19,948 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 14:11:19,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:19,951 INFO L225 Difference]: With dead ends: 1202 [2023-12-21 14:11:19,951 INFO L226 Difference]: Without dead ends: 1115 [2023-12-21 14:11:19,952 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 14:11:19,952 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 2847 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 2570 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2847 SdHoareTripleChecker+Valid, 3546 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:19,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2847 Valid, 3546 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2570 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-21 14:11:19,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-21 14:11:19,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.35702746365105) internal successors, (840), 640 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:19,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 840 transitions. [2023-12-21 14:11:19,960 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 840 transitions. Word has length 95 [2023-12-21 14:11:19,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:19,960 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 840 transitions. [2023-12-21 14:11:19,961 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 14:11:19,961 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 840 transitions. [2023-12-21 14:11:19,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:19,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:19,962 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 14:11:19,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 14:11:19,962 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:19,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:19,962 INFO L85 PathProgramCache]: Analyzing trace with hash -403449268, now seen corresponding path program 1 times [2023-12-21 14:11:19,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:19,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558815024] [2023-12-21 14:11:19,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:19,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:20,145 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 14:11:20,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:20,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558815024] [2023-12-21 14:11:20,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558815024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:20,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:20,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:20,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309117090] [2023-12-21 14:11:20,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:20,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:20,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:20,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:20,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:20,146 INFO L87 Difference]: Start difference. First operand 641 states and 840 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:21,115 INFO L93 Difference]: Finished difference Result 1246 states and 1664 transitions. [2023-12-21 14:11:21,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:21,116 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 14:11:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:21,119 INFO L225 Difference]: With dead ends: 1246 [2023-12-21 14:11:21,119 INFO L226 Difference]: Without dead ends: 1131 [2023-12-21 14:11:21,120 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 14:11:21,120 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 3662 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3662 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:21,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3662 Valid, 2646 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:11:21,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-21 14:11:21,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-21 14:11:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3554119547657513) internal successors, (839), 640 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:21,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 839 transitions. [2023-12-21 14:11:21,128 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 839 transitions. Word has length 95 [2023-12-21 14:11:21,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:21,128 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 839 transitions. [2023-12-21 14:11:21,129 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 14:11:21,129 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 839 transitions. [2023-12-21 14:11:21,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:21,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:21,130 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 14:11:21,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 14:11:21,130 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:21,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:21,130 INFO L85 PathProgramCache]: Analyzing trace with hash 13593460, now seen corresponding path program 1 times [2023-12-21 14:11:21,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:21,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516254792] [2023-12-21 14:11:21,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:21,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:21,313 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 14:11:21,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:21,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516254792] [2023-12-21 14:11:21,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516254792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:21,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:21,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:21,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207868897] [2023-12-21 14:11:21,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:21,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:21,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:21,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:21,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:21,316 INFO L87 Difference]: Start difference. First operand 641 states and 839 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:22,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:22,573 INFO L93 Difference]: Finished difference Result 1293 states and 1727 transitions. [2023-12-21 14:11:22,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:22,574 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 14:11:22,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:22,576 INFO L225 Difference]: With dead ends: 1293 [2023-12-21 14:11:22,577 INFO L226 Difference]: Without dead ends: 1139 [2023-12-21 14:11:22,577 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 14:11:22,578 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 3056 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 2360 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3056 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:22,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3056 Valid, 3132 Invalid, 2364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2360 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 14:11:22,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-12-21 14:11:22,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 641. [2023-12-21 14:11:22,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3537964458804523) internal successors, (838), 640 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:22,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 838 transitions. [2023-12-21 14:11:22,588 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 838 transitions. Word has length 95 [2023-12-21 14:11:22,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:22,588 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 838 transitions. [2023-12-21 14:11:22,589 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 14:11:22,589 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 838 transitions. [2023-12-21 14:11:22,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:22,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:22,590 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 14:11:22,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 14:11:22,590 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:22,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:22,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1322444417, now seen corresponding path program 1 times [2023-12-21 14:11:22,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:22,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474786603] [2023-12-21 14:11:22,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:22,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:22,779 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 14:11:22,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:22,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474786603] [2023-12-21 14:11:22,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474786603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:22,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:22,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:22,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370319182] [2023-12-21 14:11:22,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:22,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:22,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:22,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:22,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:22,781 INFO L87 Difference]: Start difference. First operand 641 states and 838 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:23,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:23,900 INFO L93 Difference]: Finished difference Result 1202 states and 1604 transitions. [2023-12-21 14:11:23,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:23,900 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 14:11:23,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:23,903 INFO L225 Difference]: With dead ends: 1202 [2023-12-21 14:11:23,903 INFO L226 Difference]: Without dead ends: 1115 [2023-12-21 14:11:23,903 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 14:11:23,904 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2029 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 2407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:23,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 3111 Invalid, 2407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:23,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-21 14:11:23,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-21 14:11:23,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3521809369951534) internal successors, (837), 640 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:23,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 837 transitions. [2023-12-21 14:11:23,910 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 837 transitions. Word has length 95 [2023-12-21 14:11:23,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:23,910 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 837 transitions. [2023-12-21 14:11:23,910 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 14:11:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 837 transitions. [2023-12-21 14:11:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:23,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:23,911 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 14:11:23,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 14:11:23,912 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:23,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:23,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1959236716, now seen corresponding path program 1 times [2023-12-21 14:11:23,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:23,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554424734] [2023-12-21 14:11:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:23,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:24,093 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 14:11:24,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:24,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554424734] [2023-12-21 14:11:24,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554424734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:24,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:24,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:24,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362946919] [2023-12-21 14:11:24,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:24,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:24,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:24,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:24,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:24,095 INFO L87 Difference]: Start difference. First operand 641 states and 837 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:25,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:25,283 INFO L93 Difference]: Finished difference Result 1198 states and 1599 transitions. [2023-12-21 14:11:25,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:25,283 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 14:11:25,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:25,286 INFO L225 Difference]: With dead ends: 1198 [2023-12-21 14:11:25,286 INFO L226 Difference]: Without dead ends: 1115 [2023-12-21 14:11:25,287 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 14:11:25,287 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 2828 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 2600 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 3687 SdHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:25,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2828 Valid, 3687 Invalid, 2604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2600 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 14:11:25,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-21 14:11:25,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-21 14:11:25,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3505654281098547) internal successors, (836), 640 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:25,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 836 transitions. [2023-12-21 14:11:25,297 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 836 transitions. Word has length 95 [2023-12-21 14:11:25,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:25,298 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 836 transitions. [2023-12-21 14:11:25,298 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 14:11:25,298 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 836 transitions. [2023-12-21 14:11:25,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:25,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:25,299 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] [2023-12-21 14:11:25,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 14:11:25,299 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:25,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:25,299 INFO L85 PathProgramCache]: Analyzing trace with hash 954342242, now seen corresponding path program 1 times [2023-12-21 14:11:25,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:25,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812754924] [2023-12-21 14:11:25,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:25,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:25,503 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 14:11:25,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:25,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812754924] [2023-12-21 14:11:25,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812754924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:25,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:25,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:25,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375263216] [2023-12-21 14:11:25,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:25,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:25,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:25,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:25,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:25,505 INFO L87 Difference]: Start difference. First operand 641 states and 836 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:26,685 INFO L93 Difference]: Finished difference Result 1202 states and 1601 transitions. [2023-12-21 14:11:26,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:26,686 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 14:11:26,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:26,688 INFO L225 Difference]: With dead ends: 1202 [2023-12-21 14:11:26,688 INFO L226 Difference]: Without dead ends: 1115 [2023-12-21 14:11:26,689 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 14:11:26,689 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 2828 mSDsluCounter, 2873 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:26,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2828 Valid, 3685 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 14:11:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-21 14:11:26,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-21 14:11:26,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3489499192245558) internal successors, (835), 640 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:26,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 835 transitions. [2023-12-21 14:11:26,695 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 835 transitions. Word has length 95 [2023-12-21 14:11:26,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:26,695 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 835 transitions. [2023-12-21 14:11:26,695 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 14:11:26,695 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 835 transitions. [2023-12-21 14:11:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:26,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:26,696 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 14:11:26,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 14:11:26,697 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:26,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:26,697 INFO L85 PathProgramCache]: Analyzing trace with hash -277492777, now seen corresponding path program 1 times [2023-12-21 14:11:26,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:26,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839413777] [2023-12-21 14:11:26,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:26,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:26,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:26,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839413777] [2023-12-21 14:11:26,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839413777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:26,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:26,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:26,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877212237] [2023-12-21 14:11:26,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:26,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:26,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:26,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:26,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:26,866 INFO L87 Difference]: Start difference. First operand 641 states and 835 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:27,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:27,936 INFO L93 Difference]: Finished difference Result 1202 states and 1601 transitions. [2023-12-21 14:11:27,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:27,936 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 14:11:27,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:27,938 INFO L225 Difference]: With dead ends: 1202 [2023-12-21 14:11:27,938 INFO L226 Difference]: Without dead ends: 1115 [2023-12-21 14:11:27,938 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 14:11:27,939 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 2825 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 2724 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 3927 SdHoareTripleChecker+Invalid, 2727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:27,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2825 Valid, 3927 Invalid, 2727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2724 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:27,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-21 14:11:27,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-21 14:11:27,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3473344103392568) internal successors, (834), 640 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:27,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 834 transitions. [2023-12-21 14:11:27,945 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 834 transitions. Word has length 95 [2023-12-21 14:11:27,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:27,945 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 834 transitions. [2023-12-21 14:11:27,945 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 14:11:27,945 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 834 transitions. [2023-12-21 14:11:27,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:27,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:27,946 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 14:11:27,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 14:11:27,946 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:27,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:27,946 INFO L85 PathProgramCache]: Analyzing trace with hash 90609398, now seen corresponding path program 1 times [2023-12-21 14:11:27,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:27,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783767999] [2023-12-21 14:11:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:27,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:28,130 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 14:11:28,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:28,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783767999] [2023-12-21 14:11:28,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783767999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:28,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:28,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:28,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901645903] [2023-12-21 14:11:28,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:28,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:28,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:28,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:28,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:28,131 INFO L87 Difference]: Start difference. First operand 641 states and 834 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:29,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:29,231 INFO L93 Difference]: Finished difference Result 1202 states and 1600 transitions. [2023-12-21 14:11:29,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:29,232 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 14:11:29,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:29,234 INFO L225 Difference]: With dead ends: 1202 [2023-12-21 14:11:29,234 INFO L226 Difference]: Without dead ends: 1115 [2023-12-21 14:11:29,234 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 14:11:29,234 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2951 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2951 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 2387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:29,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2951 Valid, 3107 Invalid, 2387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:29,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-21 14:11:29,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-21 14:11:29,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.345718901453958) internal successors, (833), 640 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 833 transitions. [2023-12-21 14:11:29,241 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 833 transitions. Word has length 95 [2023-12-21 14:11:29,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:29,241 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 833 transitions. [2023-12-21 14:11:29,241 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 14:11:29,241 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 833 transitions. [2023-12-21 14:11:29,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:29,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:29,242 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] [2023-12-21 14:11:29,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 14:11:29,242 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 14:11:29,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:29,242 INFO L85 PathProgramCache]: Analyzing trace with hash 726921085, now seen corresponding path program 1 times [2023-12-21 14:11:29,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:29,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787684948] [2023-12-21 14:11:29,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:29,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:29,429 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 14:11:29,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:29,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787684948] [2023-12-21 14:11:29,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787684948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:29,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:29,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:29,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455485366] [2023-12-21 14:11:29,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:29,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:29,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:29,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:29,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:29,431 INFO L87 Difference]: Start difference. First operand 641 states and 833 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:30,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:30,247 INFO L93 Difference]: Finished difference Result 1198 states and 1594 transitions. [2023-12-21 14:11:30,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:30,248 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 14:11:30,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:30,249 INFO L225 Difference]: With dead ends: 1198 [2023-12-21 14:11:30,249 INFO L226 Difference]: Without dead ends: 1115 [2023-12-21 14:11:30,250 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 14:11:30,250 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 2816 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:30,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2816 Valid, 3685 Invalid, 2583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:11:30,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-21 14:11:30,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-21 14:11:30,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3441033925686592) internal successors, (832), 640 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:30,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 832 transitions. [2023-12-21 14:11:30,256 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 832 transitions. Word has length 95 [2023-12-21 14:11:30,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:30,256 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 832 transitions. [2023-12-21 14:11:30,256 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 14:11:30,256 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 832 transitions. [2023-12-21 14:11:30,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:30,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:30,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:30,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 14:11:30,258 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:30,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:30,258 INFO L85 PathProgramCache]: Analyzing trace with hash -733177260, now seen corresponding path program 1 times [2023-12-21 14:11:30,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:30,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820959815] [2023-12-21 14:11:30,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:30,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:30,438 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 14:11:30,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:30,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820959815] [2023-12-21 14:11:30,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820959815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:30,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:30,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:30,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594319570] [2023-12-21 14:11:30,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:30,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:30,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:30,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:30,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:30,439 INFO L87 Difference]: Start difference. First operand 641 states and 832 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:31,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:31,588 INFO L93 Difference]: Finished difference Result 1198 states and 1593 transitions. [2023-12-21 14:11:31,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:31,588 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 14:11:31,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:31,590 INFO L225 Difference]: With dead ends: 1198 [2023-12-21 14:11:31,590 INFO L226 Difference]: Without dead ends: 1115 [2023-12-21 14:11:31,590 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 14:11:31,591 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 2812 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 2707 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2812 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:31,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2812 Valid, 3946 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2707 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:31,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-21 14:11:31,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-21 14:11:31,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3424878836833603) internal successors, (831), 640 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:31,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 831 transitions. [2023-12-21 14:11:31,597 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 831 transitions. Word has length 95 [2023-12-21 14:11:31,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:31,597 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 831 transitions. [2023-12-21 14:11:31,597 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 14:11:31,597 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 831 transitions. [2023-12-21 14:11:31,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:31,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:31,598 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] [2023-12-21 14:11:31,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 14:11:31,598 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:31,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:31,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1369271480, now seen corresponding path program 1 times [2023-12-21 14:11:31,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:31,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866514951] [2023-12-21 14:11:31,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:31,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:31,748 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 14:11:31,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:31,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866514951] [2023-12-21 14:11:31,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866514951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:31,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:31,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:31,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786016822] [2023-12-21 14:11:31,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:31,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:31,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:31,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:31,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:31,750 INFO L87 Difference]: Start difference. First operand 641 states and 831 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:32,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:32,620 INFO L93 Difference]: Finished difference Result 1202 states and 1595 transitions. [2023-12-21 14:11:32,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:32,620 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 14:11:32,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:32,622 INFO L225 Difference]: With dead ends: 1202 [2023-12-21 14:11:32,622 INFO L226 Difference]: Without dead ends: 1115 [2023-12-21 14:11:32,622 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 14:11:32,622 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 2744 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2744 SdHoareTripleChecker+Valid, 3313 SdHoareTripleChecker+Invalid, 2557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:32,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2744 Valid, 3313 Invalid, 2557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:11:32,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-21 14:11:32,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-21 14:11:32,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3408723747980613) internal successors, (830), 640 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:32,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 830 transitions. [2023-12-21 14:11:32,629 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 830 transitions. Word has length 95 [2023-12-21 14:11:32,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:32,629 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 830 transitions. [2023-12-21 14:11:32,629 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 14:11:32,629 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 830 transitions. [2023-12-21 14:11:32,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:32,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:32,630 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] [2023-12-21 14:11:32,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 14:11:32,630 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:32,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash -532293800, now seen corresponding path program 1 times [2023-12-21 14:11:32,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:32,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358393162] [2023-12-21 14:11:32,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:32,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:32,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:32,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:32,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358393162] [2023-12-21 14:11:32,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358393162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:32,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:32,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:32,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526249636] [2023-12-21 14:11:32,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:32,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:32,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:32,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:32,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:32,790 INFO L87 Difference]: Start difference. First operand 641 states and 830 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:33,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:33,844 INFO L93 Difference]: Finished difference Result 1198 states and 1590 transitions. [2023-12-21 14:11:33,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:33,845 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 14:11:33,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:33,846 INFO L225 Difference]: With dead ends: 1198 [2023-12-21 14:11:33,846 INFO L226 Difference]: Without dead ends: 1115 [2023-12-21 14:11:33,847 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 14:11:33,847 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2957 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 2360 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2957 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:33,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2957 Valid, 3103 Invalid, 2364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2360 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:33,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-21 14:11:33,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-21 14:11:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3392568659127626) internal successors, (829), 640 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:33,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 829 transitions. [2023-12-21 14:11:33,854 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 829 transitions. Word has length 95 [2023-12-21 14:11:33,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:33,854 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 829 transitions. [2023-12-21 14:11:33,854 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 14:11:33,854 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 829 transitions. [2023-12-21 14:11:33,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:11:33,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:33,855 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] [2023-12-21 14:11:33,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 14:11:33,855 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:33,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:33,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1192103022, now seen corresponding path program 1 times [2023-12-21 14:11:33,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:33,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266848683] [2023-12-21 14:11:33,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:33,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:34,019 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 14:11:34,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:34,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266848683] [2023-12-21 14:11:34,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266848683] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:34,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:34,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:34,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659831938] [2023-12-21 14:11:34,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:34,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:34,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:34,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:34,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:34,021 INFO L87 Difference]: Start difference. First operand 641 states and 829 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:34,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:34,885 INFO L93 Difference]: Finished difference Result 1197 states and 1587 transitions. [2023-12-21 14:11:34,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:34,913 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 14:11:34,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:34,914 INFO L225 Difference]: With dead ends: 1197 [2023-12-21 14:11:34,914 INFO L226 Difference]: Without dead ends: 1115 [2023-12-21 14:11:34,915 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 14:11:34,915 INFO L413 NwaCegarLoop]: 902 mSDtfsCounter, 2805 mSDsluCounter, 3026 mSDsCounter, 0 mSdLazyCounter, 2682 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2805 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:34,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2805 Valid, 3928 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2682 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:11:34,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-21 14:11:34,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-21 14:11:34,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3376413570274637) internal successors, (828), 640 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:34,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 828 transitions. [2023-12-21 14:11:34,922 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 828 transitions. Word has length 95 [2023-12-21 14:11:34,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:34,922 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 828 transitions. [2023-12-21 14:11:34,922 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 14:11:34,922 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 828 transitions. [2023-12-21 14:11:34,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:34,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:34,923 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 14:11:34,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 14:11:34,923 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:34,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:34,923 INFO L85 PathProgramCache]: Analyzing trace with hash -2114920515, now seen corresponding path program 1 times [2023-12-21 14:11:34,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:34,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217268231] [2023-12-21 14:11:34,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:34,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:35,103 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 14:11:35,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:35,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217268231] [2023-12-21 14:11:35,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217268231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:35,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:35,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:35,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542958035] [2023-12-21 14:11:35,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:35,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:35,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:35,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:35,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:35,105 INFO L87 Difference]: Start difference. First operand 641 states and 828 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:35,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:35,999 INFO L93 Difference]: Finished difference Result 1163 states and 1529 transitions. [2023-12-21 14:11:35,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:35,999 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 14:11:36,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:36,002 INFO L225 Difference]: With dead ends: 1163 [2023-12-21 14:11:36,002 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:11:36,002 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 14:11:36,012 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 2884 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 2328 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2884 SdHoareTripleChecker+Valid, 3063 SdHoareTripleChecker+Invalid, 2332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:36,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2884 Valid, 3063 Invalid, 2332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2328 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:11:36,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:11:36,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 641. [2023-12-21 14:11:36,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3360258481421647) internal successors, (827), 640 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 827 transitions. [2023-12-21 14:11:36,025 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 827 transitions. Word has length 97 [2023-12-21 14:11:36,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:36,025 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 827 transitions. [2023-12-21 14:11:36,026 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 14:11:36,026 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 827 transitions. [2023-12-21 14:11:36,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:36,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:36,041 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 14:11:36,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 14:11:36,041 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:36,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:36,041 INFO L85 PathProgramCache]: Analyzing trace with hash -202723413, now seen corresponding path program 1 times [2023-12-21 14:11:36,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:36,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861534062] [2023-12-21 14:11:36,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:36,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:36,290 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 14:11:36,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:36,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861534062] [2023-12-21 14:11:36,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861534062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:36,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:36,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:36,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168668172] [2023-12-21 14:11:36,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:36,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:36,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:36,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:36,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:36,292 INFO L87 Difference]: Start difference. First operand 641 states and 827 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:37,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:37,149 INFO L93 Difference]: Finished difference Result 1207 states and 1593 transitions. [2023-12-21 14:11:37,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:37,150 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 14:11:37,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:37,174 INFO L225 Difference]: With dead ends: 1207 [2023-12-21 14:11:37,175 INFO L226 Difference]: Without dead ends: 1115 [2023-12-21 14:11:37,175 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 14:11:37,175 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2934 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 2336 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2934 SdHoareTripleChecker+Valid, 3093 SdHoareTripleChecker+Invalid, 2340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:37,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2934 Valid, 3093 Invalid, 2340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2336 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:11:37,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-21 14:11:37,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-21 14:11:37,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3344103392568658) internal successors, (826), 640 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:37,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 826 transitions. [2023-12-21 14:11:37,183 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 826 transitions. Word has length 97 [2023-12-21 14:11:37,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:37,183 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 826 transitions. [2023-12-21 14:11:37,183 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 14:11:37,183 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 826 transitions. [2023-12-21 14:11:37,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:37,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:37,184 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 14:11:37,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 14:11:37,185 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:37,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:37,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1604074859, now seen corresponding path program 1 times [2023-12-21 14:11:37,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:37,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695544503] [2023-12-21 14:11:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:37,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:37,547 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 14:11:37,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:37,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695544503] [2023-12-21 14:11:37,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695544503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:37,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:37,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:37,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264312673] [2023-12-21 14:11:37,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:37,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:37,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:37,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:37,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:37,548 INFO L87 Difference]: Start difference. First operand 641 states and 826 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:38,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:38,337 INFO L93 Difference]: Finished difference Result 1160 states and 1524 transitions. [2023-12-21 14:11:38,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:38,337 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 14:11:38,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:38,339 INFO L225 Difference]: With dead ends: 1160 [2023-12-21 14:11:38,339 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:11:38,339 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 14:11:38,344 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 2872 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 2477 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2872 SdHoareTripleChecker+Valid, 3363 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:38,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2872 Valid, 3363 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2477 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:11:38,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:11:38,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 641. [2023-12-21 14:11:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.332794830371567) internal successors, (825), 640 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:38,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 825 transitions. [2023-12-21 14:11:38,376 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 825 transitions. Word has length 97 [2023-12-21 14:11:38,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:38,376 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 825 transitions. [2023-12-21 14:11:38,376 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 14:11:38,376 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 825 transitions. [2023-12-21 14:11:38,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:38,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:38,377 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 14:11:38,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 14:11:38,377 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:38,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:38,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1424910206, now seen corresponding path program 1 times [2023-12-21 14:11:38,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:38,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328762999] [2023-12-21 14:11:38,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:38,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:38,890 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 14:11:38,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:38,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328762999] [2023-12-21 14:11:38,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328762999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:38,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:38,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:11:38,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562319205] [2023-12-21 14:11:38,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:38,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:11:38,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:38,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:11:38,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:11:38,892 INFO L87 Difference]: Start difference. First operand 641 states and 825 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:40,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:40,475 INFO L93 Difference]: Finished difference Result 1544 states and 2071 transitions. [2023-12-21 14:11:40,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:11:40,475 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 14:11:40,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:40,477 INFO L225 Difference]: With dead ends: 1544 [2023-12-21 14:11:40,477 INFO L226 Difference]: Without dead ends: 1464 [2023-12-21 14:11:40,478 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 14:11:40,478 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 6374 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 2329 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6374 SdHoareTripleChecker+Valid, 2856 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:40,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6374 Valid, 2856 Invalid, 2553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2329 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 14:11:40,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-21 14:11:40,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 645. [2023-12-21 14:11:40,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3306581059390048) internal successors, (829), 644 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:40,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 829 transitions. [2023-12-21 14:11:40,486 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 829 transitions. Word has length 97 [2023-12-21 14:11:40,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:40,486 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 829 transitions. [2023-12-21 14:11:40,486 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 14:11:40,486 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 829 transitions. [2023-12-21 14:11:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:40,487 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:40,487 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 14:11:40,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-21 14:11:40,487 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:40,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:40,487 INFO L85 PathProgramCache]: Analyzing trace with hash -183952075, now seen corresponding path program 1 times [2023-12-21 14:11:40,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:40,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039317085] [2023-12-21 14:11:40,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:40,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:40,684 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 14:11:40,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:40,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039317085] [2023-12-21 14:11:40,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039317085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:40,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:40,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:40,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773999204] [2023-12-21 14:11:40,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:40,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:40,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:40,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:40,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:40,686 INFO L87 Difference]: Start difference. First operand 645 states and 829 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:41,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:41,732 INFO L93 Difference]: Finished difference Result 1163 states and 1525 transitions. [2023-12-21 14:11:41,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:41,732 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 14:11:41,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:41,734 INFO L225 Difference]: With dead ends: 1163 [2023-12-21 14:11:41,734 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:11:41,734 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 14:11:41,735 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 2873 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2873 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 2331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:41,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2873 Valid, 3101 Invalid, 2331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2327 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:41,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:11:41,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 645. [2023-12-21 14:11:41,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3290529695024078) internal successors, (828), 644 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:41,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 828 transitions. [2023-12-21 14:11:41,740 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 828 transitions. Word has length 97 [2023-12-21 14:11:41,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:41,740 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 828 transitions. [2023-12-21 14:11:41,740 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 14:11:41,740 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 828 transitions. [2023-12-21 14:11:41,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:41,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:41,741 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 14:11:41,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-21 14:11:41,741 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:41,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:41,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1728245027, now seen corresponding path program 1 times [2023-12-21 14:11:41,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:41,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404652298] [2023-12-21 14:11:41,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:41,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:41,927 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 14:11:41,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:41,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404652298] [2023-12-21 14:11:41,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404652298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:41,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:41,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:41,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446153786] [2023-12-21 14:11:41,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:41,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:41,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:41,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:41,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:41,928 INFO L87 Difference]: Start difference. First operand 645 states and 828 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:42,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:42,896 INFO L93 Difference]: Finished difference Result 1211 states and 1593 transitions. [2023-12-21 14:11:42,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:42,896 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 14:11:42,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:42,898 INFO L225 Difference]: With dead ends: 1211 [2023-12-21 14:11:42,899 INFO L226 Difference]: Without dead ends: 1119 [2023-12-21 14:11:42,899 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 14:11:42,899 INFO L413 NwaCegarLoop]: 904 mSDtfsCounter, 2798 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 2650 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2798 SdHoareTripleChecker+Valid, 3931 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:42,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2798 Valid, 3931 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2650 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:42,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2023-12-21 14:11:42,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 645. [2023-12-21 14:11:42,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3274478330658106) internal successors, (827), 644 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 827 transitions. [2023-12-21 14:11:42,905 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 827 transitions. Word has length 97 [2023-12-21 14:11:42,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:42,905 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 827 transitions. [2023-12-21 14:11:42,905 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 14:11:42,905 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 827 transitions. [2023-12-21 14:11:42,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:42,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:42,906 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 14:11:42,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-21 14:11:42,906 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:42,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:42,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1459574739, now seen corresponding path program 1 times [2023-12-21 14:11:42,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:42,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149151295] [2023-12-21 14:11:42,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:42,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:43,085 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 14:11:43,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:43,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149151295] [2023-12-21 14:11:43,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149151295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:43,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:43,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:43,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524391383] [2023-12-21 14:11:43,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:43,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:43,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:43,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:43,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:43,086 INFO L87 Difference]: Start difference. First operand 645 states and 827 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:44,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:44,046 INFO L93 Difference]: Finished difference Result 1160 states and 1520 transitions. [2023-12-21 14:11:44,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:44,046 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 14:11:44,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:44,048 INFO L225 Difference]: With dead ends: 1160 [2023-12-21 14:11:44,048 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:11:44,048 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 14:11:44,049 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 2861 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 2472 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2861 SdHoareTripleChecker+Valid, 3421 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:44,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2861 Valid, 3421 Invalid, 2475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2472 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:11:44,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:11:44,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 645. [2023-12-21 14:11:44,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3258426966292134) internal successors, (826), 644 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:44,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 826 transitions. [2023-12-21 14:11:44,054 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 826 transitions. Word has length 97 [2023-12-21 14:11:44,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:44,054 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 826 transitions. [2023-12-21 14:11:44,054 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 14:11:44,054 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 826 transitions. [2023-12-21 14:11:44,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:44,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:44,055 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 14:11:44,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-21 14:11:44,055 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 14:11:44,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:44,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1569790645, now seen corresponding path program 1 times [2023-12-21 14:11:44,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:44,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424669490] [2023-12-21 14:11:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:44,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:44,468 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 14:11:44,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:44,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424669490] [2023-12-21 14:11:44,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424669490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:44,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:44,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:11:44,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237436159] [2023-12-21 14:11:44,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:44,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:11:44,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:44,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:11:44,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:11:44,469 INFO L87 Difference]: Start difference. First operand 645 states and 826 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:46,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:46,181 INFO L93 Difference]: Finished difference Result 1469 states and 1955 transitions. [2023-12-21 14:11:46,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:11:46,182 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 14:11:46,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:46,183 INFO L225 Difference]: With dead ends: 1469 [2023-12-21 14:11:46,183 INFO L226 Difference]: Without dead ends: 1464 [2023-12-21 14:11:46,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:11:46,184 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 5478 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 3140 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5478 SdHoareTripleChecker+Valid, 3796 SdHoareTripleChecker+Invalid, 3353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 3140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:46,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5478 Valid, 3796 Invalid, 3353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 3140 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 14:11:46,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-21 14:11:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 649. [2023-12-21 14:11:46,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.3237639553429028) internal successors, (830), 648 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:46,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 830 transitions. [2023-12-21 14:11:46,189 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 830 transitions. Word has length 97 [2023-12-21 14:11:46,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:46,190 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 830 transitions. [2023-12-21 14:11:46,190 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 14:11:46,190 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 830 transitions. [2023-12-21 14:11:46,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:46,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:46,190 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 14:11:46,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-21 14:11:46,191 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:46,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:46,191 INFO L85 PathProgramCache]: Analyzing trace with hash -810880663, now seen corresponding path program 1 times [2023-12-21 14:11:46,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:46,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460490064] [2023-12-21 14:11:46,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:46,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:46,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:46,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:46,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460490064] [2023-12-21 14:11:46,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460490064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:46,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:46,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:11:46,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521846210] [2023-12-21 14:11:46,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:46,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:11:46,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:46,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:11:46,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:11:46,451 INFO L87 Difference]: Start difference. First operand 649 states and 830 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:47,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:47,919 INFO L93 Difference]: Finished difference Result 1538 states and 2060 transitions. [2023-12-21 14:11:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:11:47,919 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 14:11:47,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:47,921 INFO L225 Difference]: With dead ends: 1538 [2023-12-21 14:11:47,921 INFO L226 Difference]: Without dead ends: 1461 [2023-12-21 14:11:47,922 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 14:11:47,922 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 6310 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6310 SdHoareTripleChecker+Valid, 2877 SdHoareTripleChecker+Invalid, 2545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:47,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6310 Valid, 2877 Invalid, 2545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 14:11:47,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2023-12-21 14:11:47,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 653. [2023-12-21 14:11:47,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.3217115689381933) internal successors, (834), 652 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:47,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 834 transitions. [2023-12-21 14:11:47,928 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 834 transitions. Word has length 97 [2023-12-21 14:11:47,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:47,928 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 834 transitions. [2023-12-21 14:11:47,928 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 14:11:47,928 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 834 transitions. [2023-12-21 14:11:47,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:47,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:47,929 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 14:11:47,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-21 14:11:47,929 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:47,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:47,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1948776647, now seen corresponding path program 1 times [2023-12-21 14:11:47,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:47,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289781367] [2023-12-21 14:11:47,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:47,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:48,119 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 14:11:48,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:48,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289781367] [2023-12-21 14:11:48,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289781367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:48,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:48,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:48,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896196989] [2023-12-21 14:11:48,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:48,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:48,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:48,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:48,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:48,123 INFO L87 Difference]: Start difference. First operand 653 states and 834 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:49,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:49,136 INFO L93 Difference]: Finished difference Result 1158 states and 1515 transitions. [2023-12-21 14:11:49,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:49,136 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 14:11:49,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:49,139 INFO L225 Difference]: With dead ends: 1158 [2023-12-21 14:11:49,141 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:11:49,141 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 14:11:49,152 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 2859 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 2322 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2859 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 2326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:49,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2859 Valid, 3137 Invalid, 2326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2322 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:49,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:11:49,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 653. [2023-12-21 14:11:49,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.3201267828843106) internal successors, (833), 652 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:49,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 833 transitions. [2023-12-21 14:11:49,159 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 833 transitions. Word has length 97 [2023-12-21 14:11:49,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:49,160 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 833 transitions. [2023-12-21 14:11:49,160 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 14:11:49,161 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 833 transitions. [2023-12-21 14:11:49,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:49,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:49,162 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 14:11:49,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-21 14:11:49,162 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:49,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:49,162 INFO L85 PathProgramCache]: Analyzing trace with hash 766051541, now seen corresponding path program 1 times [2023-12-21 14:11:49,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:49,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051936692] [2023-12-21 14:11:49,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:49,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:49,321 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 14:11:49,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:49,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051936692] [2023-12-21 14:11:49,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051936692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:49,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:49,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:49,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379763750] [2023-12-21 14:11:49,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:49,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:49,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:49,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:49,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:49,324 INFO L87 Difference]: Start difference. First operand 653 states and 833 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:50,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:50,015 INFO L93 Difference]: Finished difference Result 1088 states and 1408 transitions. [2023-12-21 14:11:50,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:50,015 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 14:11:50,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:50,017 INFO L225 Difference]: With dead ends: 1088 [2023-12-21 14:11:50,017 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:11:50,017 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 14:11:50,018 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 2858 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:50,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2858 Valid, 3138 Invalid, 2317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:11:50,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:11:50,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 653. [2023-12-21 14:11:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.318541996830428) internal successors, (832), 652 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:50,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 832 transitions. [2023-12-21 14:11:50,024 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 832 transitions. Word has length 97 [2023-12-21 14:11:50,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:50,024 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 832 transitions. [2023-12-21 14:11:50,024 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 14:11:50,024 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 832 transitions. [2023-12-21 14:11:50,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:50,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:50,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:50,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-21 14:11:50,025 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:50,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:50,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1616718653, now seen corresponding path program 1 times [2023-12-21 14:11:50,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:50,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871320106] [2023-12-21 14:11:50,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:50,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:50,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:50,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871320106] [2023-12-21 14:11:50,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871320106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:50,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:50,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:50,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602072407] [2023-12-21 14:11:50,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:50,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:50,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:50,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:50,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:50,182 INFO L87 Difference]: Start difference. First operand 653 states and 832 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:51,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:51,024 INFO L93 Difference]: Finished difference Result 1148 states and 1488 transitions. [2023-12-21 14:11:51,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:51,024 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 14:11:51,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:51,026 INFO L225 Difference]: With dead ends: 1148 [2023-12-21 14:11:51,026 INFO L226 Difference]: Without dead ends: 1131 [2023-12-21 14:11:51,027 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 14:11:51,027 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2911 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 2293 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2911 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:51,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2911 Valid, 3097 Invalid, 2297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:11:51,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-21 14:11:51,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 653. [2023-12-21 14:11:51,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.3169572107765453) internal successors, (831), 652 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:51,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 831 transitions. [2023-12-21 14:11:51,034 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 831 transitions. Word has length 97 [2023-12-21 14:11:51,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:51,034 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 831 transitions. [2023-12-21 14:11:51,034 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 14:11:51,034 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 831 transitions. [2023-12-21 14:11:51,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:51,035 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:51,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:11:51,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-21 14:11:51,035 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:51,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:51,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1276634052, now seen corresponding path program 1 times [2023-12-21 14:11:51,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:51,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368856741] [2023-12-21 14:11:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:51,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:51,208 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 14:11:51,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:51,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368856741] [2023-12-21 14:11:51,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368856741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:51,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:51,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:51,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388593007] [2023-12-21 14:11:51,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:51,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:51,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:51,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:51,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:51,210 INFO L87 Difference]: Start difference. First operand 653 states and 831 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:52,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:52,294 INFO L93 Difference]: Finished difference Result 1160 states and 1514 transitions. [2023-12-21 14:11:52,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:52,294 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 14:11:52,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:52,296 INFO L225 Difference]: With dead ends: 1160 [2023-12-21 14:11:52,296 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:11:52,296 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 14:11:52,297 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 2848 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2848 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:52,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2848 Valid, 3193 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2325 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:52,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:11:52,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 653. [2023-12-21 14:11:52,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.3153724247226624) internal successors, (830), 652 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:52,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 830 transitions. [2023-12-21 14:11:52,308 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 830 transitions. Word has length 97 [2023-12-21 14:11:52,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:52,309 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 830 transitions. [2023-12-21 14:11:52,309 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 14:11:52,309 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 830 transitions. [2023-12-21 14:11:52,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:52,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:52,309 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 14:11:52,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-21 14:11:52,310 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:52,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:52,310 INFO L85 PathProgramCache]: Analyzing trace with hash 10914966, now seen corresponding path program 1 times [2023-12-21 14:11:52,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:52,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955815269] [2023-12-21 14:11:52,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:52,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:52,617 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 14:11:52,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:52,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955815269] [2023-12-21 14:11:52,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955815269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:52,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:52,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:11:52,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676379099] [2023-12-21 14:11:52,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:52,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:11:52,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:52,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:11:52,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:11:52,619 INFO L87 Difference]: Start difference. First operand 653 states and 830 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:54,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:54,347 INFO L93 Difference]: Finished difference Result 1469 states and 1949 transitions. [2023-12-21 14:11:54,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:11:54,347 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 14:11:54,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:54,349 INFO L225 Difference]: With dead ends: 1469 [2023-12-21 14:11:54,349 INFO L226 Difference]: Without dead ends: 1464 [2023-12-21 14:11:54,350 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 14:11:54,350 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 6164 mSDsluCounter, 2879 mSDsCounter, 0 mSdLazyCounter, 2867 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6164 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 2867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:54,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6164 Valid, 3560 Invalid, 3084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 2867 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 14:11:54,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-21 14:11:54,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 657. [2023-12-21 14:11:54,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.3133858267716536) internal successors, (834), 656 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:54,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 834 transitions. [2023-12-21 14:11:54,357 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 834 transitions. Word has length 97 [2023-12-21 14:11:54,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:54,357 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 834 transitions. [2023-12-21 14:11:54,358 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 14:11:54,358 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 834 transitions. [2023-12-21 14:11:54,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:54,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:54,358 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 14:11:54,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-21 14:11:54,359 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:54,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:54,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1911379830, now seen corresponding path program 1 times [2023-12-21 14:11:54,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:54,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000348470] [2023-12-21 14:11:54,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:54,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:54,547 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 14:11:54,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:54,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000348470] [2023-12-21 14:11:54,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000348470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:54,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:54,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:54,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822260538] [2023-12-21 14:11:54,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:54,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:54,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:54,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:54,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:54,548 INFO L87 Difference]: Start difference. First operand 657 states and 834 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:55,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:55,616 INFO L93 Difference]: Finished difference Result 1163 states and 1515 transitions. [2023-12-21 14:11:55,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:55,616 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 14:11:55,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:55,618 INFO L225 Difference]: With dead ends: 1163 [2023-12-21 14:11:55,618 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:11:55,618 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 14:11:55,619 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 2848 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2848 SdHoareTripleChecker+Valid, 3175 SdHoareTripleChecker+Invalid, 2316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:55,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2848 Valid, 3175 Invalid, 2316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:55,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:11:55,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 657. [2023-12-21 14:11:55,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.3118110236220473) internal successors, (833), 656 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:55,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 833 transitions. [2023-12-21 14:11:55,624 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 833 transitions. Word has length 97 [2023-12-21 14:11:55,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:55,624 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 833 transitions. [2023-12-21 14:11:55,624 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 14:11:55,624 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 833 transitions. [2023-12-21 14:11:55,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:55,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:55,625 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 14:11:55,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-21 14:11:55,625 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:55,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:55,626 INFO L85 PathProgramCache]: Analyzing trace with hash 817272, now seen corresponding path program 1 times [2023-12-21 14:11:55,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:55,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644606307] [2023-12-21 14:11:55,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:55,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:55,768 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 14:11:55,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:55,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644606307] [2023-12-21 14:11:55,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644606307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:55,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:55,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:55,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994976199] [2023-12-21 14:11:55,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:55,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:55,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:55,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:55,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:55,770 INFO L87 Difference]: Start difference. First operand 657 states and 833 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:56,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:56,823 INFO L93 Difference]: Finished difference Result 1227 states and 1598 transitions. [2023-12-21 14:11:56,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:11:56,823 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 14:11:56,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:56,825 INFO L225 Difference]: With dead ends: 1227 [2023-12-21 14:11:56,825 INFO L226 Difference]: Without dead ends: 1135 [2023-12-21 14:11:56,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:11:56,826 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2904 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 3093 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:56,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 3093 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:11:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2023-12-21 14:11:56,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 657. [2023-12-21 14:11:56,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.310236220472441) internal successors, (832), 656 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:56,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 832 transitions. [2023-12-21 14:11:56,832 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 832 transitions. Word has length 97 [2023-12-21 14:11:56,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:56,832 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 832 transitions. [2023-12-21 14:11:56,832 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 14:11:56,832 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 832 transitions. [2023-12-21 14:11:56,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:56,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:56,833 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 14:11:56,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-21 14:11:56,834 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:56,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:56,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1401277931, now seen corresponding path program 1 times [2023-12-21 14:11:56,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:56,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572723382] [2023-12-21 14:11:56,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:56,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:57,007 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 14:11:57,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:57,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572723382] [2023-12-21 14:11:57,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572723382] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:57,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:57,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:57,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739679293] [2023-12-21 14:11:57,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:57,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:57,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:57,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:57,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:57,009 INFO L87 Difference]: Start difference. First operand 657 states and 832 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:57,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:57,692 INFO L93 Difference]: Finished difference Result 1160 states and 1510 transitions. [2023-12-21 14:11:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:11:57,692 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 14:11:57,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:57,693 INFO L225 Difference]: With dead ends: 1160 [2023-12-21 14:11:57,693 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:11:57,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:11:57,694 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 2836 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 2461 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 3475 SdHoareTripleChecker+Invalid, 2464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:57,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 3475 Invalid, 2464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2461 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:11:57,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:11:57,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 657. [2023-12-21 14:11:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.3086614173228346) internal successors, (831), 656 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:57,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 831 transitions. [2023-12-21 14:11:57,699 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 831 transitions. Word has length 97 [2023-12-21 14:11:57,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:57,699 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 831 transitions. [2023-12-21 14:11:57,699 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 14:11:57,699 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 831 transitions. [2023-12-21 14:11:57,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:57,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:57,700 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 14:11:57,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-21 14:11:57,700 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:57,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:57,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1628450891, now seen corresponding path program 1 times [2023-12-21 14:11:57,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:57,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696155629] [2023-12-21 14:11:57,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:57,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:57,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:11:57,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:57,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696155629] [2023-12-21 14:11:57,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696155629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:57,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:57,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:11:57,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221002697] [2023-12-21 14:11:57,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:57,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:11:57,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:57,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:11:57,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:11:57,946 INFO L87 Difference]: Start difference. First operand 657 states and 831 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:59,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:11:59,245 INFO L93 Difference]: Finished difference Result 1544 states and 2057 transitions. [2023-12-21 14:11:59,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:11:59,246 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 14:11:59,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:11:59,247 INFO L225 Difference]: With dead ends: 1544 [2023-12-21 14:11:59,247 INFO L226 Difference]: Without dead ends: 1464 [2023-12-21 14:11:59,248 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 14:11:59,248 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 6102 mSDsluCounter, 2914 mSDsCounter, 0 mSdLazyCounter, 2869 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6102 SdHoareTripleChecker+Valid, 3606 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:11:59,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6102 Valid, 3606 Invalid, 3084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2869 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:11:59,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-21 14:11:59,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 661. [2023-12-21 14:11:59,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.3067292644757433) internal successors, (835), 660 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:11:59,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 835 transitions. [2023-12-21 14:11:59,255 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 835 transitions. Word has length 97 [2023-12-21 14:11:59,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:11:59,255 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 835 transitions. [2023-12-21 14:11:59,255 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 14:11:59,255 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 835 transitions. [2023-12-21 14:11:59,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:11:59,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:11:59,258 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 14:11:59,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-21 14:11:59,258 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:11:59,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:11:59,258 INFO L85 PathProgramCache]: Analyzing trace with hash 157480574, now seen corresponding path program 1 times [2023-12-21 14:11:59,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:11:59,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958283227] [2023-12-21 14:11:59,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:11:59,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:11:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:11:59,433 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 14:11:59,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:11:59,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958283227] [2023-12-21 14:11:59,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958283227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:11:59,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:11:59,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:11:59,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765860457] [2023-12-21 14:11:59,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:11:59,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:11:59,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:11:59,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:11:59,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:11:59,435 INFO L87 Difference]: Start difference. First operand 661 states and 835 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:00,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:00,531 INFO L93 Difference]: Finished difference Result 1160 states and 1508 transitions. [2023-12-21 14:12:00,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:12:00,531 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 14:12:00,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:00,532 INFO L225 Difference]: With dead ends: 1160 [2023-12-21 14:12:00,532 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:00,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:12:00,536 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 2833 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 2448 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 3473 SdHoareTripleChecker+Invalid, 2451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:00,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2833 Valid, 3473 Invalid, 2451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2448 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:12:00,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:00,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 661. [2023-12-21 14:12:00,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.3051643192488263) internal successors, (834), 660 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 834 transitions. [2023-12-21 14:12:00,542 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 834 transitions. Word has length 97 [2023-12-21 14:12:00,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:00,542 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 834 transitions. [2023-12-21 14:12:00,542 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 14:12:00,542 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 834 transitions. [2023-12-21 14:12:00,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:00,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:00,543 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 14:12:00,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-21 14:12:00,543 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:00,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:00,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1107640726, now seen corresponding path program 1 times [2023-12-21 14:12:00,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:00,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198844019] [2023-12-21 14:12:00,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:00,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:00,798 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 14:12:00,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:00,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198844019] [2023-12-21 14:12:00,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198844019] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:00,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:00,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:00,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348161686] [2023-12-21 14:12:00,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:00,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:00,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:00,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:00,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:00,799 INFO L87 Difference]: Start difference. First operand 661 states and 834 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:02,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:02,310 INFO L93 Difference]: Finished difference Result 1544 states and 2055 transitions. [2023-12-21 14:12:02,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:02,310 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 14:12:02,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:02,312 INFO L225 Difference]: With dead ends: 1544 [2023-12-21 14:12:02,312 INFO L226 Difference]: Without dead ends: 1464 [2023-12-21 14:12:02,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:12:02,314 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 5451 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 2518 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5451 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 2730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 2518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:02,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5451 Valid, 3159 Invalid, 2730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 2518 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 14:12:02,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-21 14:12:02,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 665. [2023-12-21 14:12:02,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 643 states have (on average 1.3032659409020217) internal successors, (838), 664 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:02,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 838 transitions. [2023-12-21 14:12:02,321 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 838 transitions. Word has length 97 [2023-12-21 14:12:02,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:02,321 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 838 transitions. [2023-12-21 14:12:02,322 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 14:12:02,322 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 838 transitions. [2023-12-21 14:12:02,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:02,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:02,322 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 14:12:02,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-21 14:12:02,323 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:02,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:02,323 INFO L85 PathProgramCache]: Analyzing trace with hash 806174650, now seen corresponding path program 1 times [2023-12-21 14:12:02,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:02,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480871941] [2023-12-21 14:12:02,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:02,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:02,595 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 14:12:02,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:02,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480871941] [2023-12-21 14:12:02,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480871941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:02,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:02,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:02,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419643174] [2023-12-21 14:12:02,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:02,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:02,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:02,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:02,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:02,596 INFO L87 Difference]: Start difference. First operand 665 states and 838 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:04,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:04,168 INFO L93 Difference]: Finished difference Result 1538 states and 2048 transitions. [2023-12-21 14:12:04,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:04,168 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 14:12:04,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:04,170 INFO L225 Difference]: With dead ends: 1538 [2023-12-21 14:12:04,170 INFO L226 Difference]: Without dead ends: 1461 [2023-12-21 14:12:04,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:12:04,170 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 6202 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6202 SdHoareTripleChecker+Valid, 2914 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:04,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6202 Valid, 2914 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 14:12:04,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2023-12-21 14:12:04,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 669. [2023-12-21 14:12:04,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 647 states have (on average 1.3013910355486862) internal successors, (842), 668 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:04,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 842 transitions. [2023-12-21 14:12:04,177 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 842 transitions. Word has length 97 [2023-12-21 14:12:04,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:04,177 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 842 transitions. [2023-12-21 14:12:04,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:04,177 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 842 transitions. [2023-12-21 14:12:04,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:04,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:04,178 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 14:12:04,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-21 14:12:04,178 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:04,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:04,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1457801230, now seen corresponding path program 1 times [2023-12-21 14:12:04,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:04,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296053440] [2023-12-21 14:12:04,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:04,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:04,348 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 14:12:04,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:04,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296053440] [2023-12-21 14:12:04,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296053440] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:04,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:04,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:04,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256462491] [2023-12-21 14:12:04,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:04,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:04,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:04,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:04,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:04,349 INFO L87 Difference]: Start difference. First operand 669 states and 842 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:05,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:05,453 INFO L93 Difference]: Finished difference Result 1158 states and 1503 transitions. [2023-12-21 14:12:05,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:12:05,453 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 14:12:05,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:05,455 INFO L225 Difference]: With dead ends: 1158 [2023-12-21 14:12:05,455 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:05,455 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 14:12:05,455 INFO L413 NwaCegarLoop]: 761 mSDtfsCounter, 2830 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2830 SdHoareTripleChecker+Valid, 3449 SdHoareTripleChecker+Invalid, 2430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:05,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2830 Valid, 3449 Invalid, 2430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:12:05,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:05,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 669. [2023-12-21 14:12:05,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 647 states have (on average 1.2998454404945905) internal successors, (841), 668 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:05,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 841 transitions. [2023-12-21 14:12:05,461 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 841 transitions. Word has length 97 [2023-12-21 14:12:05,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:05,461 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 841 transitions. [2023-12-21 14:12:05,461 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 14:12:05,461 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 841 transitions. [2023-12-21 14:12:05,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:05,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:05,462 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 14:12:05,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-21 14:12:05,462 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:05,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:05,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1980221071, now seen corresponding path program 1 times [2023-12-21 14:12:05,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:05,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876423397] [2023-12-21 14:12:05,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:05,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:05,738 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 14:12:05,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:05,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876423397] [2023-12-21 14:12:05,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876423397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:05,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:05,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:05,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416387172] [2023-12-21 14:12:05,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:05,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:05,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:05,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:05,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:05,739 INFO L87 Difference]: Start difference. First operand 669 states and 841 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:07,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:07,312 INFO L93 Difference]: Finished difference Result 1538 states and 2046 transitions. [2023-12-21 14:12:07,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:07,312 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 14:12:07,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:07,314 INFO L225 Difference]: With dead ends: 1538 [2023-12-21 14:12:07,314 INFO L226 Difference]: Without dead ends: 1461 [2023-12-21 14:12:07,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:12:07,315 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 6203 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6203 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 2506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:07,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6203 Valid, 2921 Invalid, 2506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 14:12:07,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2023-12-21 14:12:07,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 673. [2023-12-21 14:12:07,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 651 states have (on average 1.2980030721966205) internal successors, (845), 672 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:07,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 845 transitions. [2023-12-21 14:12:07,321 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 845 transitions. Word has length 97 [2023-12-21 14:12:07,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:07,321 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 845 transitions. [2023-12-21 14:12:07,321 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 14:12:07,321 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 845 transitions. [2023-12-21 14:12:07,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:07,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:07,322 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 14:12:07,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-21 14:12:07,322 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:07,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:07,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1666052149, now seen corresponding path program 1 times [2023-12-21 14:12:07,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:07,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406271558] [2023-12-21 14:12:07,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:07,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:07,496 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 14:12:07,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:07,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406271558] [2023-12-21 14:12:07,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406271558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:07,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:07,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:07,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745651296] [2023-12-21 14:12:07,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:07,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:07,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:07,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:07,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:07,497 INFO L87 Difference]: Start difference. First operand 673 states and 845 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:08,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:08,571 INFO L93 Difference]: Finished difference Result 1160 states and 1503 transitions. [2023-12-21 14:12:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:12:08,571 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 14:12:08,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:08,572 INFO L225 Difference]: With dead ends: 1160 [2023-12-21 14:12:08,572 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:08,573 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 14:12:08,573 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 2827 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2827 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 2412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:08,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2827 Valid, 3447 Invalid, 2412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:12:08,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:08,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 673. [2023-12-21 14:12:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 651 states have (on average 1.2964669738863288) internal successors, (844), 672 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:08,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 844 transitions. [2023-12-21 14:12:08,578 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 844 transitions. Word has length 97 [2023-12-21 14:12:08,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:08,578 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 844 transitions. [2023-12-21 14:12:08,578 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 14:12:08,579 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 844 transitions. [2023-12-21 14:12:08,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:08,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:08,579 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 14:12:08,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-21 14:12:08,579 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:08,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:08,580 INFO L85 PathProgramCache]: Analyzing trace with hash 401148316, now seen corresponding path program 1 times [2023-12-21 14:12:08,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:08,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596511630] [2023-12-21 14:12:08,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:08,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:08,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:08,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596511630] [2023-12-21 14:12:08,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596511630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:08,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:08,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:08,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686126586] [2023-12-21 14:12:08,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:08,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:08,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:08,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:08,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:08,831 INFO L87 Difference]: Start difference. First operand 673 states and 844 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:10,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:10,566 INFO L93 Difference]: Finished difference Result 1469 states and 1938 transitions. [2023-12-21 14:12:10,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:10,567 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 14:12:10,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:10,568 INFO L225 Difference]: With dead ends: 1469 [2023-12-21 14:12:10,568 INFO L226 Difference]: Without dead ends: 1464 [2023-12-21 14:12:10,568 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 14:12:10,569 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 5468 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 2484 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5468 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 2699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:10,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5468 Valid, 3140 Invalid, 2699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2484 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 14:12:10,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-21 14:12:10,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 677. [2023-12-21 14:12:10,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 655 states have (on average 1.2946564885496183) internal successors, (848), 676 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:10,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 848 transitions. [2023-12-21 14:12:10,575 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 848 transitions. Word has length 97 [2023-12-21 14:12:10,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:10,575 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 848 transitions. [2023-12-21 14:12:10,575 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 14:12:10,575 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 848 transitions. [2023-12-21 14:12:10,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:10,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:10,576 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 14:12:10,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-21 14:12:10,576 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:10,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:10,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2108459819, now seen corresponding path program 1 times [2023-12-21 14:12:10,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:10,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478821647] [2023-12-21 14:12:10,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:10,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:10,836 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 14:12:10,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:10,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478821647] [2023-12-21 14:12:10,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478821647] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:10,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:10,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:10,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635102707] [2023-12-21 14:12:10,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:10,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:10,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:10,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:10,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:10,838 INFO L87 Difference]: Start difference. First operand 677 states and 848 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:12,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:12,303 INFO L93 Difference]: Finished difference Result 1538 states and 2043 transitions. [2023-12-21 14:12:12,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:12,303 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 14:12:12,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:12,304 INFO L225 Difference]: With dead ends: 1538 [2023-12-21 14:12:12,304 INFO L226 Difference]: Without dead ends: 1461 [2023-12-21 14:12:12,305 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 14:12:12,305 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 6218 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6218 SdHoareTripleChecker+Valid, 2909 SdHoareTripleChecker+Invalid, 2488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:12,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6218 Valid, 2909 Invalid, 2488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 14:12:12,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2023-12-21 14:12:12,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 681. [2023-12-21 14:12:12,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 659 states have (on average 1.2928679817905917) internal successors, (852), 680 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:12,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 852 transitions. [2023-12-21 14:12:12,312 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 852 transitions. Word has length 97 [2023-12-21 14:12:12,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:12,312 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 852 transitions. [2023-12-21 14:12:12,312 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 14:12:12,312 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 852 transitions. [2023-12-21 14:12:12,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:12,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:12,313 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, 1, 1, 1] [2023-12-21 14:12:12,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-21 14:12:12,313 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:12,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:12,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1658266281, now seen corresponding path program 1 times [2023-12-21 14:12:12,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:12,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690578178] [2023-12-21 14:12:12,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:12,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:12,490 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 14:12:12,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:12,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690578178] [2023-12-21 14:12:12,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690578178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:12,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:12,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:12,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846574402] [2023-12-21 14:12:12,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:12,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:12,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:12,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:12,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:12,492 INFO L87 Difference]: Start difference. First operand 681 states and 852 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:13,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:13,270 INFO L93 Difference]: Finished difference Result 1158 states and 1498 transitions. [2023-12-21 14:12:13,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:12:13,270 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 14:12:13,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:13,271 INFO L225 Difference]: With dead ends: 1158 [2023-12-21 14:12:13,272 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:13,272 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 14:12:13,272 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 2824 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2824 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 2395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:13,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2824 Valid, 3471 Invalid, 2395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:13,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:13,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 681. [2023-12-21 14:12:13,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 659 states have (on average 1.291350531107739) internal successors, (851), 680 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:13,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 851 transitions. [2023-12-21 14:12:13,278 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 851 transitions. Word has length 97 [2023-12-21 14:12:13,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:13,278 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 851 transitions. [2023-12-21 14:12:13,278 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 14:12:13,278 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 851 transitions. [2023-12-21 14:12:13,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 14:12:13,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:13,279 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 14:12:13,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-21 14:12:13,279 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:13,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:13,279 INFO L85 PathProgramCache]: Analyzing trace with hash -3808982, now seen corresponding path program 1 times [2023-12-21 14:12:13,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:13,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750603921] [2023-12-21 14:12:13,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:13,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:13,530 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 14:12:13,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:13,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750603921] [2023-12-21 14:12:13,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750603921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:13,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:13,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:13,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219715420] [2023-12-21 14:12:13,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:13,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:13,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:13,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:13,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:13,531 INFO L87 Difference]: Start difference. First operand 681 states and 851 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:14,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:14,961 INFO L93 Difference]: Finished difference Result 1534 states and 2037 transitions. [2023-12-21 14:12:14,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:12:14,961 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 14:12:14,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:14,963 INFO L225 Difference]: With dead ends: 1534 [2023-12-21 14:12:14,963 INFO L226 Difference]: Without dead ends: 1459 [2023-12-21 14:12:14,963 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 14:12:14,963 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 6215 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6215 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:14,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6215 Valid, 2893 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 14:12:14,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2023-12-21 14:12:14,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 685. [2023-12-21 14:12:14,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 663 states have (on average 1.2895927601809956) internal successors, (855), 684 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:14,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 855 transitions. [2023-12-21 14:12:14,970 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 855 transitions. Word has length 97 [2023-12-21 14:12:14,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:14,970 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 855 transitions. [2023-12-21 14:12:14,970 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 14:12:14,970 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 855 transitions. [2023-12-21 14:12:14,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:14,971 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:14,971 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 14:12:14,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-21 14:12:14,971 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:14,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:14,971 INFO L85 PathProgramCache]: Analyzing trace with hash 956375610, now seen corresponding path program 1 times [2023-12-21 14:12:14,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:14,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692590023] [2023-12-21 14:12:14,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:14,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:15,122 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 14:12:15,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:15,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692590023] [2023-12-21 14:12:15,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692590023] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:15,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:15,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:15,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102277519] [2023-12-21 14:12:15,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:15,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:15,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:15,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:15,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:15,123 INFO L87 Difference]: Start difference. First operand 685 states and 855 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:16,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:16,084 INFO L93 Difference]: Finished difference Result 1163 states and 1501 transitions. [2023-12-21 14:12:16,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:16,085 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 14:12:16,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:16,086 INFO L225 Difference]: With dead ends: 1163 [2023-12-21 14:12:16,086 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:16,087 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 14:12:16,087 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 2120 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:16,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2120 Valid, 2728 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:16,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:16,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 681. [2023-12-21 14:12:16,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 659 states have (on average 1.289833080424886) internal successors, (850), 680 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:16,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 850 transitions. [2023-12-21 14:12:16,093 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 850 transitions. Word has length 98 [2023-12-21 14:12:16,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:16,093 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 850 transitions. [2023-12-21 14:12:16,093 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 14:12:16,093 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 850 transitions. [2023-12-21 14:12:16,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:16,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:16,094 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 14:12:16,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-21 14:12:16,094 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:16,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:16,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1152702306, now seen corresponding path program 1 times [2023-12-21 14:12:16,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:16,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194262621] [2023-12-21 14:12:16,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:16,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:16,231 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 14:12:16,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:16,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194262621] [2023-12-21 14:12:16,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194262621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:16,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:16,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:16,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900855643] [2023-12-21 14:12:16,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:16,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:16,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:16,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:16,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:16,232 INFO L87 Difference]: Start difference. First operand 681 states and 850 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:17,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:17,132 INFO L93 Difference]: Finished difference Result 1088 states and 1389 transitions. [2023-12-21 14:12:17,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:17,133 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 14:12:17,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:17,134 INFO L225 Difference]: With dead ends: 1088 [2023-12-21 14:12:17,134 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:17,134 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 14:12:17,136 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 3054 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3054 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:17,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3054 Valid, 2746 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:17,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:17,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 677. [2023-12-21 14:12:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 655 states have (on average 1.2900763358778626) internal successors, (845), 676 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 845 transitions. [2023-12-21 14:12:17,145 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 845 transitions. Word has length 98 [2023-12-21 14:12:17,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:17,145 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 845 transitions. [2023-12-21 14:12:17,145 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 14:12:17,145 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 845 transitions. [2023-12-21 14:12:17,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:17,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:17,146 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 14:12:17,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-21 14:12:17,147 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:17,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:17,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1854308446, now seen corresponding path program 1 times [2023-12-21 14:12:17,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:17,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986659601] [2023-12-21 14:12:17,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:17,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:17,333 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 14:12:17,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:17,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986659601] [2023-12-21 14:12:17,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986659601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:17,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:17,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:17,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564713455] [2023-12-21 14:12:17,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:17,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:17,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:17,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:17,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:17,339 INFO L87 Difference]: Start difference. First operand 677 states and 845 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:18,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:18,263 INFO L93 Difference]: Finished difference Result 1160 states and 1496 transitions. [2023-12-21 14:12:18,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:18,264 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 14:12:18,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:18,266 INFO L225 Difference]: With dead ends: 1160 [2023-12-21 14:12:18,266 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:18,266 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 14:12:18,266 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 2115 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:18,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 2744 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:18,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 673. [2023-12-21 14:12:18,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 651 states have (on average 1.2903225806451613) internal successors, (840), 672 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:18,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 840 transitions. [2023-12-21 14:12:18,283 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 840 transitions. Word has length 98 [2023-12-21 14:12:18,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:18,284 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 840 transitions. [2023-12-21 14:12:18,284 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 14:12:18,284 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 840 transitions. [2023-12-21 14:12:18,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:18,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:18,285 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 14:12:18,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-21 14:12:18,285 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:18,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:18,286 INFO L85 PathProgramCache]: Analyzing trace with hash 72196395, now seen corresponding path program 1 times [2023-12-21 14:12:18,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:18,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173301923] [2023-12-21 14:12:18,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:18,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:18,459 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 14:12:18,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:18,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173301923] [2023-12-21 14:12:18,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173301923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:18,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:18,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:18,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750214822] [2023-12-21 14:12:18,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:18,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:18,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:18,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:18,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:18,462 INFO L87 Difference]: Start difference. First operand 673 states and 840 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:19,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:19,370 INFO L93 Difference]: Finished difference Result 1088 states and 1387 transitions. [2023-12-21 14:12:19,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:19,370 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 14:12:19,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:19,371 INFO L225 Difference]: With dead ends: 1088 [2023-12-21 14:12:19,371 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:19,372 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 14:12:19,372 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 3036 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3036 SdHoareTripleChecker+Valid, 2762 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:19,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3036 Valid, 2762 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:19,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 669. [2023-12-21 14:12:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 647 states have (on average 1.2905718701700155) internal successors, (835), 668 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 835 transitions. [2023-12-21 14:12:19,377 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 835 transitions. Word has length 98 [2023-12-21 14:12:19,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:19,377 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 835 transitions. [2023-12-21 14:12:19,377 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 14:12:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 835 transitions. [2023-12-21 14:12:19,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:19,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:19,378 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 14:12:19,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-21 14:12:19,378 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:19,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:19,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1323796998, now seen corresponding path program 1 times [2023-12-21 14:12:19,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:19,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938169650] [2023-12-21 14:12:19,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:19,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:19,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:19,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:19,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938169650] [2023-12-21 14:12:19,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938169650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:19,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:19,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:19,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846884464] [2023-12-21 14:12:19,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:19,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:19,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:19,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:19,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:19,513 INFO L87 Difference]: Start difference. First operand 669 states and 835 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:20,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:20,361 INFO L93 Difference]: Finished difference Result 1163 states and 1497 transitions. [2023-12-21 14:12:20,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:20,361 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 14:12:20,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:20,363 INFO L225 Difference]: With dead ends: 1163 [2023-12-21 14:12:20,363 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:20,363 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 14:12:20,363 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 2093 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:20,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 2776 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:20,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:20,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 665. [2023-12-21 14:12:20,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 643 states have (on average 1.290824261275272) internal successors, (830), 664 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:20,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 830 transitions. [2023-12-21 14:12:20,369 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 830 transitions. Word has length 98 [2023-12-21 14:12:20,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:20,369 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 830 transitions. [2023-12-21 14:12:20,369 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 14:12:20,369 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 830 transitions. [2023-12-21 14:12:20,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:20,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:20,370 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] [2023-12-21 14:12:20,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-21 14:12:20,370 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:20,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:20,371 INFO L85 PathProgramCache]: Analyzing trace with hash -243291087, now seen corresponding path program 1 times [2023-12-21 14:12:20,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:20,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648396605] [2023-12-21 14:12:20,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:20,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:20,522 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 14:12:20,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:20,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648396605] [2023-12-21 14:12:20,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648396605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:20,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:20,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:20,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701625069] [2023-12-21 14:12:20,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:20,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:20,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:20,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:20,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:20,523 INFO L87 Difference]: Start difference. First operand 665 states and 830 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:21,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:21,373 INFO L93 Difference]: Finished difference Result 1163 states and 1496 transitions. [2023-12-21 14:12:21,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:21,374 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 14:12:21,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:21,374 INFO L225 Difference]: With dead ends: 1163 [2023-12-21 14:12:21,374 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:21,375 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 14:12:21,377 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 2086 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2086 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:21,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2086 Valid, 2792 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:21,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:21,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 661. [2023-12-21 14:12:21,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.2910798122065728) internal successors, (825), 660 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:21,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 825 transitions. [2023-12-21 14:12:21,401 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 825 transitions. Word has length 98 [2023-12-21 14:12:21,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:21,402 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 825 transitions. [2023-12-21 14:12:21,402 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 14:12:21,402 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 825 transitions. [2023-12-21 14:12:21,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:21,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:21,402 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 14:12:21,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-21 14:12:21,403 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:21,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:21,403 INFO L85 PathProgramCache]: Analyzing trace with hash 457834441, now seen corresponding path program 1 times [2023-12-21 14:12:21,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:21,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906707985] [2023-12-21 14:12:21,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:21,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:21,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:21,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:21,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906707985] [2023-12-21 14:12:21,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906707985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:21,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:21,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:21,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318368573] [2023-12-21 14:12:21,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:21,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:21,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:21,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:21,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:21,552 INFO L87 Difference]: Start difference. First operand 661 states and 825 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:22,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:22,541 INFO L93 Difference]: Finished difference Result 1160 states and 1492 transitions. [2023-12-21 14:12:22,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:22,542 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 14:12:22,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:22,543 INFO L225 Difference]: With dead ends: 1160 [2023-12-21 14:12:22,543 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:22,543 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 14:12:22,544 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 2080 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 2063 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2080 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 2067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:22,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2080 Valid, 2795 Invalid, 2067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2063 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:22,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:22,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 657. [2023-12-21 14:12:22,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.2913385826771653) internal successors, (820), 656 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 820 transitions. [2023-12-21 14:12:22,549 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 820 transitions. Word has length 98 [2023-12-21 14:12:22,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:22,549 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 820 transitions. [2023-12-21 14:12:22,549 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 14:12:22,549 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 820 transitions. [2023-12-21 14:12:22,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:22,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:22,550 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 14:12:22,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-21 14:12:22,550 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:22,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:22,551 INFO L85 PathProgramCache]: Analyzing trace with hash -14562761, now seen corresponding path program 1 times [2023-12-21 14:12:22,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:22,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383924093] [2023-12-21 14:12:22,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:22,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:22,684 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 14:12:22,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:22,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383924093] [2023-12-21 14:12:22,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383924093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:22,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:22,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:22,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551892529] [2023-12-21 14:12:22,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:22,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:22,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:22,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:22,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:22,686 INFO L87 Difference]: Start difference. First operand 657 states and 820 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:23,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:23,595 INFO L93 Difference]: Finished difference Result 1160 states and 1491 transitions. [2023-12-21 14:12:23,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:23,596 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 14:12:23,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:23,597 INFO L225 Difference]: With dead ends: 1160 [2023-12-21 14:12:23,597 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:23,597 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 14:12:23,598 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 2994 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:23,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2994 Valid, 2808 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:23,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:23,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 653. [2023-12-21 14:12:23,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.2916006339144215) internal successors, (815), 652 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 815 transitions. [2023-12-21 14:12:23,603 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 815 transitions. Word has length 98 [2023-12-21 14:12:23,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:23,603 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 815 transitions. [2023-12-21 14:12:23,603 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 14:12:23,603 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 815 transitions. [2023-12-21 14:12:23,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:23,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:23,604 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 14:12:23,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-21 14:12:23,604 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:23,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:23,605 INFO L85 PathProgramCache]: Analyzing trace with hash -715470822, now seen corresponding path program 1 times [2023-12-21 14:12:23,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:23,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643626052] [2023-12-21 14:12:23,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:23,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:23,818 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 14:12:23,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:23,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643626052] [2023-12-21 14:12:23,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643626052] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:23,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:23,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:23,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512830683] [2023-12-21 14:12:23,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:23,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:23,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:23,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:23,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:23,820 INFO L87 Difference]: Start difference. First operand 653 states and 815 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:24,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:24,782 INFO L93 Difference]: Finished difference Result 1088 states and 1382 transitions. [2023-12-21 14:12:24,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:24,783 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 14:12:24,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:24,784 INFO L225 Difference]: With dead ends: 1088 [2023-12-21 14:12:24,784 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:24,784 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 14:12:24,784 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 2985 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:24,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2985 Valid, 2814 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:24,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:24,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 649. [2023-12-21 14:12:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.291866028708134) internal successors, (810), 648 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:24,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 810 transitions. [2023-12-21 14:12:24,789 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 810 transitions. Word has length 98 [2023-12-21 14:12:24,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:24,789 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 810 transitions. [2023-12-21 14:12:24,789 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 14:12:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 810 transitions. [2023-12-21 14:12:24,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:24,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:24,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:12:24,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-21 14:12:24,790 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:24,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:24,790 INFO L85 PathProgramCache]: Analyzing trace with hash 308012238, now seen corresponding path program 1 times [2023-12-21 14:12:24,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:24,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84016448] [2023-12-21 14:12:24,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:24,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:24,921 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 14:12:24,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:24,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84016448] [2023-12-21 14:12:24,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84016448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:24,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:24,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:24,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430484932] [2023-12-21 14:12:24,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:24,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:24,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:24,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:24,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:24,923 INFO L87 Difference]: Start difference. First operand 649 states and 810 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:25,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:25,894 INFO L93 Difference]: Finished difference Result 1160 states and 1489 transitions. [2023-12-21 14:12:25,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:25,894 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 14:12:25,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:25,895 INFO L225 Difference]: With dead ends: 1160 [2023-12-21 14:12:25,895 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:25,896 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 14:12:25,896 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 2065 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:25,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 2824 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:25,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:25,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 645. [2023-12-21 14:12:25,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.2921348314606742) internal successors, (805), 644 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:25,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 805 transitions. [2023-12-21 14:12:25,901 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 805 transitions. Word has length 98 [2023-12-21 14:12:25,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:25,901 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 805 transitions. [2023-12-21 14:12:25,901 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 14:12:25,901 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 805 transitions. [2023-12-21 14:12:25,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:25,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:25,902 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 14:12:25,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-21 14:12:25,903 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:25,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:25,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1209361993, now seen corresponding path program 1 times [2023-12-21 14:12:25,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:25,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523782693] [2023-12-21 14:12:25,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:25,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:26,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:12:26,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:26,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523782693] [2023-12-21 14:12:26,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523782693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:26,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:26,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:26,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121159132] [2023-12-21 14:12:26,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:26,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:26,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:26,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:26,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:26,089 INFO L87 Difference]: Start difference. First operand 645 states and 805 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:27,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:27,107 INFO L93 Difference]: Finished difference Result 1159 states and 1487 transitions. [2023-12-21 14:12:27,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:12:27,108 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 14:12:27,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:27,109 INFO L225 Difference]: With dead ends: 1159 [2023-12-21 14:12:27,109 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:27,109 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 14:12:27,110 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 2792 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2792 SdHoareTripleChecker+Valid, 3273 SdHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:27,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2792 Valid, 3273 Invalid, 2243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:12:27,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:27,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 645. [2023-12-21 14:12:27,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.290529695024077) internal successors, (804), 644 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:27,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 804 transitions. [2023-12-21 14:12:27,115 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 804 transitions. Word has length 98 [2023-12-21 14:12:27,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:27,115 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 804 transitions. [2023-12-21 14:12:27,115 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 14:12:27,115 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 804 transitions. [2023-12-21 14:12:27,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 14:12:27,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:27,116 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] [2023-12-21 14:12:27,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-12-21 14:12:27,116 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:27,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:27,116 INFO L85 PathProgramCache]: Analyzing trace with hash -817835515, now seen corresponding path program 1 times [2023-12-21 14:12:27,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:27,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908669447] [2023-12-21 14:12:27,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:27,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:27,265 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 14:12:27,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:27,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908669447] [2023-12-21 14:12:27,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908669447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:27,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:27,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:27,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859435148] [2023-12-21 14:12:27,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:27,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:27,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:27,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:27,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:27,266 INFO L87 Difference]: Start difference. First operand 645 states and 804 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:28,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:28,162 INFO L93 Difference]: Finished difference Result 1158 states and 1485 transitions. [2023-12-21 14:12:28,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:28,162 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 14:12:28,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:28,163 INFO L225 Difference]: With dead ends: 1158 [2023-12-21 14:12:28,163 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 14:12:28,164 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 14:12:28,164 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 1967 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:28,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1967 Valid, 3001 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:28,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 14:12:28,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 641. [2023-12-21 14:12:28,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.2907915993537964) internal successors, (799), 640 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:28,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 799 transitions. [2023-12-21 14:12:28,169 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 799 transitions. Word has length 98 [2023-12-21 14:12:28,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:28,169 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 799 transitions. [2023-12-21 14:12:28,169 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 14:12:28,169 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 799 transitions. [2023-12-21 14:12:28,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:28,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:28,170 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 14:12:28,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-12-21 14:12:28,170 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:28,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:28,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1517389818, now seen corresponding path program 1 times [2023-12-21 14:12:28,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:28,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991061022] [2023-12-21 14:12:28,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:28,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:28,666 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 14:12:28,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:28,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991061022] [2023-12-21 14:12:28,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991061022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:28,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:28,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 14:12:28,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036706658] [2023-12-21 14:12:28,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:28,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 14:12:28,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:28,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 14:12:28,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:12:28,668 INFO L87 Difference]: Start difference. First operand 641 states and 799 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:29,672 INFO L93 Difference]: Finished difference Result 2003 states and 2641 transitions. [2023-12-21 14:12:29,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 14:12:29,672 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-21 14:12:29,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:29,674 INFO L225 Difference]: With dead ends: 2003 [2023-12-21 14:12:29,674 INFO L226 Difference]: Without dead ends: 1865 [2023-12-21 14:12:29,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-21 14:12:29,675 INFO L413 NwaCegarLoop]: 1814 mSDtfsCounter, 3630 mSDsluCounter, 12499 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3630 SdHoareTripleChecker+Valid, 14313 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:29,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3630 Valid, 14313 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:12:29,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2023-12-21 14:12:29,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 578. [2023-12-21 14:12:29,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 560 states have (on average 1.2875) internal successors, (721), 577 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:29,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 721 transitions. [2023-12-21 14:12:29,682 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 721 transitions. Word has length 99 [2023-12-21 14:12:29,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:29,682 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 721 transitions. [2023-12-21 14:12:29,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:29,682 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 721 transitions. [2023-12-21 14:12:29,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:29,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:29,683 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 14:12:29,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2023-12-21 14:12:29,683 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:29,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:29,683 INFO L85 PathProgramCache]: Analyzing trace with hash 2051081877, now seen corresponding path program 1 times [2023-12-21 14:12:29,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:29,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610888075] [2023-12-21 14:12:29,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:29,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:30,123 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 14:12:30,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:30,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610888075] [2023-12-21 14:12:30,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610888075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:30,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:30,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:12:30,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385415011] [2023-12-21 14:12:30,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:30,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:12:30,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:30,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:12:30,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:12:30,129 INFO L87 Difference]: Start difference. First operand 578 states and 721 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:31,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:31,136 INFO L93 Difference]: Finished difference Result 918 states and 1154 transitions. [2023-12-21 14:12:31,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 14:12:31,136 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-21 14:12:31,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:31,137 INFO L225 Difference]: With dead ends: 918 [2023-12-21 14:12:31,137 INFO L226 Difference]: Without dead ends: 839 [2023-12-21 14:12:31,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:31,138 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 3395 mSDsluCounter, 2970 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3395 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:31,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3395 Valid, 3591 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:12:31,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2023-12-21 14:12:31,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 574. [2023-12-21 14:12:31,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 557 states have (on average 1.2854578096947935) internal successors, (716), 573 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:31,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 716 transitions. [2023-12-21 14:12:31,142 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 716 transitions. Word has length 99 [2023-12-21 14:12:31,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:31,142 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 716 transitions. [2023-12-21 14:12:31,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:31,142 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 716 transitions. [2023-12-21 14:12:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:31,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:31,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:12:31,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2023-12-21 14:12:31,143 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:31,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:31,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1752184082, now seen corresponding path program 1 times [2023-12-21 14:12:31,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:31,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843342213] [2023-12-21 14:12:31,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:31,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:31,490 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 14:12:31,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:31,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843342213] [2023-12-21 14:12:31,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843342213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:31,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:31,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:12:31,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754247092] [2023-12-21 14:12:31,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:31,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:12:31,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:31,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:12:31,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:12:31,491 INFO L87 Difference]: Start difference. First operand 574 states and 716 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:32,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:32,411 INFO L93 Difference]: Finished difference Result 918 states and 1152 transitions. [2023-12-21 14:12:32,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:12:32,412 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-21 14:12:32,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:32,413 INFO L225 Difference]: With dead ends: 918 [2023-12-21 14:12:32,413 INFO L226 Difference]: Without dead ends: 839 [2023-12-21 14:12:32,413 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 14:12:32,413 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 3380 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:32,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3380 Valid, 2960 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:12:32,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2023-12-21 14:12:32,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 570. [2023-12-21 14:12:32,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 554 states have (on average 1.2833935018050542) internal successors, (711), 569 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:32,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 711 transitions. [2023-12-21 14:12:32,417 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 711 transitions. Word has length 99 [2023-12-21 14:12:32,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:32,418 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 711 transitions. [2023-12-21 14:12:32,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:32,418 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 711 transitions. [2023-12-21 14:12:32,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:32,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:32,418 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 14:12:32,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-12-21 14:12:32,419 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:32,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:32,419 INFO L85 PathProgramCache]: Analyzing trace with hash -28333066, now seen corresponding path program 1 times [2023-12-21 14:12:32,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:32,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167367841] [2023-12-21 14:12:32,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:32,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:34,051 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 14:12:34,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:34,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167367841] [2023-12-21 14:12:34,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167367841] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:34,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:34,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-21 14:12:34,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684838973] [2023-12-21 14:12:34,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:34,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-21 14:12:34,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:34,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-21 14:12:34,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=962, Unknown=0, NotChecked=0, Total=1056 [2023-12-21 14:12:34,053 INFO L87 Difference]: Start difference. First operand 570 states and 711 transitions. Second operand has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:45,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:45,480 INFO L93 Difference]: Finished difference Result 2455 states and 3109 transitions. [2023-12-21 14:12:45,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-21 14:12:45,480 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-21 14:12:45,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:45,482 INFO L225 Difference]: With dead ends: 2455 [2023-12-21 14:12:45,482 INFO L226 Difference]: Without dead ends: 2373 [2023-12-21 14:12:45,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=520, Invalid=3020, Unknown=0, NotChecked=0, Total=3540 [2023-12-21 14:12:45,482 INFO L413 NwaCegarLoop]: 2135 mSDtfsCounter, 7684 mSDsluCounter, 33687 mSDsCounter, 0 mSdLazyCounter, 20103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7684 SdHoareTripleChecker+Valid, 35822 SdHoareTripleChecker+Invalid, 20106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:45,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7684 Valid, 35822 Invalid, 20106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 20103 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-12-21 14:12:45,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2023-12-21 14:12:45,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 594. [2023-12-21 14:12:45,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 578 states have (on average 1.282006920415225) internal successors, (741), 593 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:45,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 741 transitions. [2023-12-21 14:12:45,490 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 741 transitions. Word has length 99 [2023-12-21 14:12:45,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:45,490 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 741 transitions. [2023-12-21 14:12:45,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:45,490 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 741 transitions. [2023-12-21 14:12:45,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:45,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:45,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:12:45,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2023-12-21 14:12:45,491 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:45,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:45,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1080698848, now seen corresponding path program 1 times [2023-12-21 14:12:45,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:45,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738957086] [2023-12-21 14:12:45,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:45,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:45,851 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 14:12:45,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:45,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738957086] [2023-12-21 14:12:45,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738957086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:45,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:45,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 14:12:45,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616462341] [2023-12-21 14:12:45,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:45,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 14:12:45,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:45,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 14:12:45,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:12:45,853 INFO L87 Difference]: Start difference. First operand 594 states and 741 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:46,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:46,706 INFO L93 Difference]: Finished difference Result 1932 states and 2552 transitions. [2023-12-21 14:12:46,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 14:12:46,707 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-21 14:12:46,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:46,709 INFO L225 Difference]: With dead ends: 1932 [2023-12-21 14:12:46,709 INFO L226 Difference]: Without dead ends: 1808 [2023-12-21 14:12:46,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2023-12-21 14:12:46,710 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 4795 mSDsluCounter, 9687 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 11371 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:46,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 11371 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:12:46,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2023-12-21 14:12:46,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 545. [2023-12-21 14:12:46,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 530 states have (on average 1.2792452830188679) internal successors, (678), 544 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:46,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 678 transitions. [2023-12-21 14:12:46,716 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 678 transitions. Word has length 99 [2023-12-21 14:12:46,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:46,716 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 678 transitions. [2023-12-21 14:12:46,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:46,716 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 678 transitions. [2023-12-21 14:12:46,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:46,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:46,717 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 14:12:46,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2023-12-21 14:12:46,717 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 14:12:46,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:46,717 INFO L85 PathProgramCache]: Analyzing trace with hash -122361806, now seen corresponding path program 1 times [2023-12-21 14:12:46,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:46,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415362342] [2023-12-21 14:12:46,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:46,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:47,284 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 14:12:47,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:47,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415362342] [2023-12-21 14:12:47,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415362342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:47,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:47,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 14:12:47,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874375619] [2023-12-21 14:12:47,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:47,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 14:12:47,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:47,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 14:12:47,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:12:47,286 INFO L87 Difference]: Start difference. First operand 545 states and 678 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:48,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:48,436 INFO L93 Difference]: Finished difference Result 1406 states and 1832 transitions. [2023-12-21 14:12:48,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 14:12:48,436 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-21 14:12:48,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:48,438 INFO L225 Difference]: With dead ends: 1406 [2023-12-21 14:12:48,438 INFO L226 Difference]: Without dead ends: 1266 [2023-12-21 14:12:48,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=873, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 14:12:48,439 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 4946 mSDsluCounter, 9784 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4946 SdHoareTripleChecker+Valid, 11076 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:48,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4946 Valid, 11076 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:12:48,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2023-12-21 14:12:48,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 545. [2023-12-21 14:12:48,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 530 states have (on average 1.2773584905660378) internal successors, (677), 544 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:48,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 677 transitions. [2023-12-21 14:12:48,454 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 677 transitions. Word has length 99 [2023-12-21 14:12:48,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:48,454 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 677 transitions. [2023-12-21 14:12:48,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:48,454 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 677 transitions. [2023-12-21 14:12:48,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:48,454 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:48,455 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 14:12:48,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-12-21 14:12:48,455 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:48,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:48,455 INFO L85 PathProgramCache]: Analyzing trace with hash -448483545, now seen corresponding path program 1 times [2023-12-21 14:12:48,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:48,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736982341] [2023-12-21 14:12:48,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:48,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:48,807 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 14:12:48,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:48,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736982341] [2023-12-21 14:12:48,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736982341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:48,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:48,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:12:48,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366917472] [2023-12-21 14:12:48,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:48,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:12:48,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:48,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:12:48,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:12:48,808 INFO L87 Difference]: Start difference. First operand 545 states and 677 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:49,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:49,771 INFO L93 Difference]: Finished difference Result 863 states and 1083 transitions. [2023-12-21 14:12:49,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:12:49,771 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-21 14:12:49,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:49,772 INFO L225 Difference]: With dead ends: 863 [2023-12-21 14:12:49,772 INFO L226 Difference]: Without dead ends: 784 [2023-12-21 14:12:49,773 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 14:12:49,773 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 3056 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3056 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:49,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3056 Valid, 2699 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:49,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2023-12-21 14:12:49,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 541. [2023-12-21 14:12:49,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 527 states have (on average 1.2751423149905123) internal successors, (672), 540 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:49,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 672 transitions. [2023-12-21 14:12:49,777 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 672 transitions. Word has length 99 [2023-12-21 14:12:49,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:49,777 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 672 transitions. [2023-12-21 14:12:49,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:49,777 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 672 transitions. [2023-12-21 14:12:49,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 14:12:49,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:49,778 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 14:12:49,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2023-12-21 14:12:49,778 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:49,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:49,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2065966603, now seen corresponding path program 1 times [2023-12-21 14:12:49,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:49,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562790571] [2023-12-21 14:12:49,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:49,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:50,085 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 14:12:50,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:50,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562790571] [2023-12-21 14:12:50,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562790571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:50,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:50,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:50,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206303408] [2023-12-21 14:12:50,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:50,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:50,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:50,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:50,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:50,086 INFO L87 Difference]: Start difference. First operand 541 states and 672 transitions. Second operand has 11 states, 11 states have (on average 9.0) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:50,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:50,605 INFO L93 Difference]: Finished difference Result 1243 states and 1600 transitions. [2023-12-21 14:12:50,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 14:12:50,605 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-21 14:12:50,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:50,606 INFO L225 Difference]: With dead ends: 1243 [2023-12-21 14:12:50,606 INFO L226 Difference]: Without dead ends: 951 [2023-12-21 14:12:50,607 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 14:12:50,607 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 2785 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 2604 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:50,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 2604 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:12:50,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-12-21 14:12:50,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 324. [2023-12-21 14:12:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 315 states have (on average 1.2476190476190476) internal successors, (393), 323 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 393 transitions. [2023-12-21 14:12:50,610 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 393 transitions. Word has length 99 [2023-12-21 14:12:50,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:50,610 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 393 transitions. [2023-12-21 14:12:50,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:50,610 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 393 transitions. [2023-12-21 14:12:50,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:50,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:50,611 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 14:12:50,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2023-12-21 14:12:50,611 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:50,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:50,611 INFO L85 PathProgramCache]: Analyzing trace with hash -480559089, now seen corresponding path program 1 times [2023-12-21 14:12:50,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:50,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147193315] [2023-12-21 14:12:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:50,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:51,253 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 14:12:51,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:51,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147193315] [2023-12-21 14:12:51,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147193315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:51,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:51,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 14:12:51,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986253731] [2023-12-21 14:12:51,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:51,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 14:12:51,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:51,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 14:12:51,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:12:51,255 INFO L87 Difference]: Start difference. First operand 324 states and 393 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 16 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:52,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:52,609 INFO L93 Difference]: Finished difference Result 1267 states and 1718 transitions. [2023-12-21 14:12:52,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-21 14:12:52,609 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 16 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-21 14:12:52,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:52,610 INFO L225 Difference]: With dead ends: 1267 [2023-12-21 14:12:52,610 INFO L226 Difference]: Without dead ends: 1163 [2023-12-21 14:12:52,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=247, Invalid=1013, Unknown=0, NotChecked=0, Total=1260 [2023-12-21 14:12:52,611 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 2173 mSDsluCounter, 7847 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2173 SdHoareTripleChecker+Valid, 8804 SdHoareTripleChecker+Invalid, 1645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:52,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2173 Valid, 8804 Invalid, 1645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:12:52,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2023-12-21 14:12:52,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 330. [2023-12-21 14:12:52,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 321 states have (on average 1.2461059190031152) internal successors, (400), 329 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:52,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 400 transitions. [2023-12-21 14:12:52,638 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 400 transitions. Word has length 100 [2023-12-21 14:12:52,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:52,639 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 400 transitions. [2023-12-21 14:12:52,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 16 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:52,639 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 400 transitions. [2023-12-21 14:12:52,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:52,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:52,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:12:52,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2023-12-21 14:12:52,648 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:52,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:52,649 INFO L85 PathProgramCache]: Analyzing trace with hash -125460370, now seen corresponding path program 1 times [2023-12-21 14:12:52,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:52,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780425894] [2023-12-21 14:12:52,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:52,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:52,845 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 14:12:52,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:52,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780425894] [2023-12-21 14:12:52,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780425894] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:52,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:52,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:52,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217308127] [2023-12-21 14:12:52,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:52,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:52,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:52,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:52,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:52,846 INFO L87 Difference]: Start difference. First operand 330 states and 400 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:53,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:53,406 INFO L93 Difference]: Finished difference Result 478 states and 587 transitions. [2023-12-21 14:12:53,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 14:12:53,406 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 14:12:53,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:53,407 INFO L225 Difference]: With dead ends: 478 [2023-12-21 14:12:53,407 INFO L226 Difference]: Without dead ends: 471 [2023-12-21 14:12:53,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-21 14:12:53,407 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 1123 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:53,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 1222 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:12:53,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-21 14:12:53,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 330. [2023-12-21 14:12:53,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 321 states have (on average 1.2429906542056075) internal successors, (399), 329 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:53,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 399 transitions. [2023-12-21 14:12:53,410 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 399 transitions. Word has length 100 [2023-12-21 14:12:53,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:53,410 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 399 transitions. [2023-12-21 14:12:53,410 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 14:12:53,410 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 399 transitions. [2023-12-21 14:12:53,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:53,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:53,411 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, 1, 1, 1] [2023-12-21 14:12:53,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2023-12-21 14:12:53,411 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:53,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:53,411 INFO L85 PathProgramCache]: Analyzing trace with hash 38543128, now seen corresponding path program 1 times [2023-12-21 14:12:53,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:53,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886318123] [2023-12-21 14:12:53,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:53,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:53,560 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 14:12:53,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:53,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886318123] [2023-12-21 14:12:53,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886318123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:53,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:53,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:53,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508880519] [2023-12-21 14:12:53,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:53,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:53,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:53,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:53,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:53,562 INFO L87 Difference]: Start difference. First operand 330 states and 399 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:54,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:54,131 INFO L93 Difference]: Finished difference Result 724 states and 944 transitions. [2023-12-21 14:12:54,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:12:54,132 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 14:12:54,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:54,133 INFO L225 Difference]: With dead ends: 724 [2023-12-21 14:12:54,133 INFO L226 Difference]: Without dead ends: 631 [2023-12-21 14:12:54,133 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 14:12:54,133 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 1468 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:54,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 1482 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:12:54,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-12-21 14:12:54,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 330. [2023-12-21 14:12:54,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 321 states have (on average 1.2398753894080996) internal successors, (398), 329 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:54,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 398 transitions. [2023-12-21 14:12:54,136 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 398 transitions. Word has length 100 [2023-12-21 14:12:54,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:54,136 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 398 transitions. [2023-12-21 14:12:54,136 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 14:12:54,136 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 398 transitions. [2023-12-21 14:12:54,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:54,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:54,137 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 14:12:54,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2023-12-21 14:12:54,137 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:54,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:54,137 INFO L85 PathProgramCache]: Analyzing trace with hash -801357341, now seen corresponding path program 1 times [2023-12-21 14:12:54,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:54,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445151176] [2023-12-21 14:12:54,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:54,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:54,425 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 14:12:54,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:54,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445151176] [2023-12-21 14:12:54,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445151176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:54,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:54,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:12:54,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067939395] [2023-12-21 14:12:54,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:54,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:12:54,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:54,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:12:54,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:12:54,426 INFO L87 Difference]: Start difference. First operand 330 states and 398 transitions. Second operand has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:55,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:55,183 INFO L93 Difference]: Finished difference Result 673 states and 861 transitions. [2023-12-21 14:12:55,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 14:12:55,183 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 14:12:55,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:55,184 INFO L225 Difference]: With dead ends: 673 [2023-12-21 14:12:55,184 INFO L226 Difference]: Without dead ends: 666 [2023-12-21 14:12:55,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=215, Invalid=541, Unknown=0, NotChecked=0, Total=756 [2023-12-21 14:12:55,185 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 3340 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3340 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:55,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3340 Valid, 1329 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:12:55,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2023-12-21 14:12:55,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 334. [2023-12-21 14:12:55,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 325 states have (on average 1.236923076923077) internal successors, (402), 333 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:55,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 402 transitions. [2023-12-21 14:12:55,187 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 402 transitions. Word has length 100 [2023-12-21 14:12:55,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:55,187 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 402 transitions. [2023-12-21 14:12:55,187 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 14:12:55,188 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 402 transitions. [2023-12-21 14:12:55,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:55,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:55,188 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 14:12:55,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2023-12-21 14:12:55,188 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:55,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:55,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1340768153, now seen corresponding path program 1 times [2023-12-21 14:12:55,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:55,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399627574] [2023-12-21 14:12:55,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:55,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:55,519 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 14:12:55,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:55,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399627574] [2023-12-21 14:12:55,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399627574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:55,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:55,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:12:55,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259874902] [2023-12-21 14:12:55,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:55,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:12:55,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:55,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:12:55,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:12:55,521 INFO L87 Difference]: Start difference. First operand 334 states and 402 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:55,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:55,959 INFO L93 Difference]: Finished difference Result 566 states and 712 transitions. [2023-12-21 14:12:55,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 14:12:55,959 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-21 14:12:55,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:55,960 INFO L225 Difference]: With dead ends: 566 [2023-12-21 14:12:55,960 INFO L226 Difference]: Without dead ends: 476 [2023-12-21 14:12:55,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:12:55,961 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 1532 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:55,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 2509 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:12:55,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-12-21 14:12:55,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 299. [2023-12-21 14:12:55,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 291 states have (on average 1.2302405498281788) internal successors, (358), 298 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:55,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 358 transitions. [2023-12-21 14:12:55,964 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 358 transitions. Word has length 100 [2023-12-21 14:12:55,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:55,964 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 358 transitions. [2023-12-21 14:12:55,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:55,964 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 358 transitions. [2023-12-21 14:12:55,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:55,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:55,964 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 14:12:55,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2023-12-21 14:12:55,965 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:55,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:55,965 INFO L85 PathProgramCache]: Analyzing trace with hash 885897345, now seen corresponding path program 1 times [2023-12-21 14:12:55,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:55,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131041157] [2023-12-21 14:12:55,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:55,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:56,341 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 14:12:56,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:56,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131041157] [2023-12-21 14:12:56,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131041157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:56,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:56,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:12:56,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871761963] [2023-12-21 14:12:56,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:56,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:12:56,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:56,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:12:56,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:12:56,342 INFO L87 Difference]: Start difference. First operand 299 states and 358 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:56,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:56,826 INFO L93 Difference]: Finished difference Result 446 states and 543 transitions. [2023-12-21 14:12:56,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:12:56,827 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-21 14:12:56,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:56,827 INFO L225 Difference]: With dead ends: 446 [2023-12-21 14:12:56,827 INFO L226 Difference]: Without dead ends: 442 [2023-12-21 14:12:56,827 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 14:12:56,828 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1879 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:56,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 1515 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:12:56,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-21 14:12:56,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 295. [2023-12-21 14:12:56,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 288 states have (on average 1.2291666666666667) internal successors, (354), 294 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:56,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 354 transitions. [2023-12-21 14:12:56,830 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 354 transitions. Word has length 100 [2023-12-21 14:12:56,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:56,830 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 354 transitions. [2023-12-21 14:12:56,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:56,830 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 354 transitions. [2023-12-21 14:12:56,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:12:56,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:56,831 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 14:12:56,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2023-12-21 14:12:56,831 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:56,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:56,831 INFO L85 PathProgramCache]: Analyzing trace with hash -894619803, now seen corresponding path program 1 times [2023-12-21 14:12:56,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:56,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110053908] [2023-12-21 14:12:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:56,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:57,187 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 14:12:57,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:57,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110053908] [2023-12-21 14:12:57,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110053908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:57,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:57,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 14:12:57,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110015756] [2023-12-21 14:12:57,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:57,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 14:12:57,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:57,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 14:12:57,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:12:57,188 INFO L87 Difference]: Start difference. First operand 295 states and 354 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:57,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:57,808 INFO L93 Difference]: Finished difference Result 982 states and 1283 transitions. [2023-12-21 14:12:57,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 14:12:57,809 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-21 14:12:57,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:57,810 INFO L225 Difference]: With dead ends: 982 [2023-12-21 14:12:57,810 INFO L226 Difference]: Without dead ends: 842 [2023-12-21 14:12:57,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-21 14:12:57,810 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 1487 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 5686 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:57,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 5686 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:12:57,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2023-12-21 14:12:57,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 230. [2023-12-21 14:12:57,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 226 states have (on average 1.2256637168141593) internal successors, (277), 229 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:57,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 277 transitions. [2023-12-21 14:12:57,813 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 277 transitions. Word has length 100 [2023-12-21 14:12:57,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:57,813 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 277 transitions. [2023-12-21 14:12:57,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:57,813 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 277 transitions. [2023-12-21 14:12:57,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 14:12:57,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:57,813 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 14:12:57,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2023-12-21 14:12:57,814 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:57,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:57,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1435047818, now seen corresponding path program 1 times [2023-12-21 14:12:57,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:57,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968636305] [2023-12-21 14:12:57,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:57,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:57,954 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 14:12:57,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:57,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968636305] [2023-12-21 14:12:57,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968636305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:57,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:57,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:12:57,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076567187] [2023-12-21 14:12:57,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:57,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:12:57,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:57,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:12:57,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:12:57,955 INFO L87 Difference]: Start difference. First operand 230 states and 277 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:58,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:58,333 INFO L93 Difference]: Finished difference Result 343 states and 426 transitions. [2023-12-21 14:12:58,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:12:58,333 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 14:12:58,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:58,334 INFO L225 Difference]: With dead ends: 343 [2023-12-21 14:12:58,334 INFO L226 Difference]: Without dead ends: 336 [2023-12-21 14:12:58,334 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 14:12:58,334 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 806 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:58,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 971 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:12:58,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-21 14:12:58,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 226. [2023-12-21 14:12:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 222 states have (on average 1.2252252252252251) internal successors, (272), 225 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:58,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 272 transitions. [2023-12-21 14:12:58,336 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 272 transitions. Word has length 101 [2023-12-21 14:12:58,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:58,336 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 272 transitions. [2023-12-21 14:12:58,336 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 14:12:58,337 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 272 transitions. [2023-12-21 14:12:58,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 14:12:58,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:58,337 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 14:12:58,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2023-12-21 14:12:58,337 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:58,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:58,337 INFO L85 PathProgramCache]: Analyzing trace with hash 912718675, now seen corresponding path program 1 times [2023-12-21 14:12:58,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:58,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241407934] [2023-12-21 14:12:58,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:58,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:12:58,685 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 14:12:58,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:12:58,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241407934] [2023-12-21 14:12:58,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241407934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:12:58,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:12:58,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:12:58,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103353559] [2023-12-21 14:12:58,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:12:58,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:12:58,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:12:58,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:12:58,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:12:58,687 INFO L87 Difference]: Start difference. First operand 226 states and 272 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:59,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:12:59,195 INFO L93 Difference]: Finished difference Result 492 states and 646 transitions. [2023-12-21 14:12:59,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:12:59,195 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 14:12:59,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:12:59,196 INFO L225 Difference]: With dead ends: 492 [2023-12-21 14:12:59,196 INFO L226 Difference]: Without dead ends: 486 [2023-12-21 14:12:59,196 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 14:12:59,197 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 1372 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:12:59,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 2880 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:12:59,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-12-21 14:12:59,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 220. [2023-12-21 14:12:59,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 217 states have (on average 1.2258064516129032) internal successors, (266), 219 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:12:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 266 transitions. [2023-12-21 14:12:59,200 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 266 transitions. Word has length 102 [2023-12-21 14:12:59,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:12:59,200 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 266 transitions. [2023-12-21 14:12:59,200 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 14:12:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 266 transitions. [2023-12-21 14:12:59,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 14:12:59,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:12:59,200 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, 1] [2023-12-21 14:12:59,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2023-12-21 14:12:59,201 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:12:59,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:12:59,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1107731518, now seen corresponding path program 1 times [2023-12-21 14:12:59,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:12:59,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737219056] [2023-12-21 14:12:59,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:12:59,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:12:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:00,818 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 14:13:00,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:00,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737219056] [2023-12-21 14:13:00,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737219056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:00,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:00,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-21 14:13:00,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351509428] [2023-12-21 14:13:00,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:00,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-21 14:13:00,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:00,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-21 14:13:00,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=949, Unknown=0, NotChecked=0, Total=1056 [2023-12-21 14:13:00,820 INFO L87 Difference]: Start difference. First operand 220 states and 266 transitions. Second operand has 33 states, 33 states have (on average 3.090909090909091) internal successors, (102), 32 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:05,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:05,890 INFO L93 Difference]: Finished difference Result 965 states and 1253 transitions. [2023-12-21 14:13:05,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-21 14:13:05,890 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.090909090909091) internal successors, (102), 32 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-21 14:13:05,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:05,891 INFO L225 Difference]: With dead ends: 965 [2023-12-21 14:13:05,891 INFO L226 Difference]: Without dead ends: 957 [2023-12-21 14:13:05,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=546, Invalid=2994, Unknown=0, NotChecked=0, Total=3540 [2023-12-21 14:13:05,892 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 3136 mSDsluCounter, 12643 mSDsCounter, 0 mSdLazyCounter, 6627 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3136 SdHoareTripleChecker+Valid, 13534 SdHoareTripleChecker+Invalid, 6629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:05,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3136 Valid, 13534 Invalid, 6629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6627 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-21 14:13:05,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2023-12-21 14:13:05,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 244. [2023-12-21 14:13:05,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 241 states have (on average 1.2240663900414939) internal successors, (295), 243 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:05,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 295 transitions. [2023-12-21 14:13:05,895 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 295 transitions. Word has length 102 [2023-12-21 14:13:05,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:05,895 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 295 transitions. [2023-12-21 14:13:05,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.090909090909091) internal successors, (102), 32 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:05,895 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 295 transitions. [2023-12-21 14:13:05,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 14:13:05,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:05,895 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 14:13:05,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2023-12-21 14:13:05,895 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:05,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:05,896 INFO L85 PathProgramCache]: Analyzing trace with hash 110806707, now seen corresponding path program 1 times [2023-12-21 14:13:05,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:05,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078251390] [2023-12-21 14:13:05,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:05,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:07,391 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 14:13:07,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:07,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078251390] [2023-12-21 14:13:07,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078251390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:07,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:07,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2023-12-21 14:13:07,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330633777] [2023-12-21 14:13:07,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:07,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-21 14:13:07,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:07,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-21 14:13:07,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=838, Unknown=0, NotChecked=0, Total=930 [2023-12-21 14:13:07,392 INFO L87 Difference]: Start difference. First operand 244 states and 295 transitions. Second operand has 31 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 31 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:11,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:11,984 INFO L93 Difference]: Finished difference Result 956 states and 1245 transitions. [2023-12-21 14:13:11,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-21 14:13:11,984 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 31 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-21 14:13:11,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:11,985 INFO L225 Difference]: With dead ends: 956 [2023-12-21 14:13:11,985 INFO L226 Difference]: Without dead ends: 948 [2023-12-21 14:13:11,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=483, Invalid=2709, Unknown=0, NotChecked=0, Total=3192 [2023-12-21 14:13:11,986 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 2648 mSDsluCounter, 13385 mSDsCounter, 0 mSdLazyCounter, 7452 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2648 SdHoareTripleChecker+Valid, 14238 SdHoareTripleChecker+Invalid, 7457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:11,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2648 Valid, 14238 Invalid, 7457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7452 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-21 14:13:11,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2023-12-21 14:13:11,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 253. [2023-12-21 14:13:11,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 250 states have (on average 1.224) internal successors, (306), 252 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:11,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 306 transitions. [2023-12-21 14:13:11,992 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 306 transitions. Word has length 102 [2023-12-21 14:13:11,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:11,992 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 306 transitions. [2023-12-21 14:13:11,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 31 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:11,992 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 306 transitions. [2023-12-21 14:13:11,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 14:13:11,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:11,992 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 14:13:11,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2023-12-21 14:13:11,992 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:11,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:11,993 INFO L85 PathProgramCache]: Analyzing trace with hash -2140279419, now seen corresponding path program 1 times [2023-12-21 14:13:11,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:11,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589771817] [2023-12-21 14:13:11,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:11,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:12,348 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 14:13:12,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:12,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589771817] [2023-12-21 14:13:12,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589771817] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:12,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:12,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 14:13:12,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143450824] [2023-12-21 14:13:12,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:12,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 14:13:12,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:12,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 14:13:12,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:13:12,349 INFO L87 Difference]: Start difference. First operand 253 states and 306 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:12,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:12,858 INFO L93 Difference]: Finished difference Result 687 states and 923 transitions. [2023-12-21 14:13:12,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 14:13:12,858 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-21 14:13:12,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:12,859 INFO L225 Difference]: With dead ends: 687 [2023-12-21 14:13:12,859 INFO L226 Difference]: Without dead ends: 672 [2023-12-21 14:13:12,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-21 14:13:12,859 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 1433 mSDsluCounter, 3993 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:12,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 4561 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:13:12,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-12-21 14:13:12,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 232. [2023-12-21 14:13:12,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 230 states have (on average 1.2260869565217392) internal successors, (282), 231 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:12,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 282 transitions. [2023-12-21 14:13:12,861 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 282 transitions. Word has length 103 [2023-12-21 14:13:12,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:12,862 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 282 transitions. [2023-12-21 14:13:12,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:12,862 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 282 transitions. [2023-12-21 14:13:12,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 14:13:12,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:12,862 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 14:13:12,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2023-12-21 14:13:12,862 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:12,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:12,862 INFO L85 PathProgramCache]: Analyzing trace with hash 131660042, now seen corresponding path program 1 times [2023-12-21 14:13:12,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:12,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832382494] [2023-12-21 14:13:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:12,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:13,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:13,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832382494] [2023-12-21 14:13:13,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832382494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:13,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:13,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 14:13:13,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307457339] [2023-12-21 14:13:13,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:13,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 14:13:13,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:13,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 14:13:13,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:13:13,220 INFO L87 Difference]: Start difference. First operand 232 states and 282 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:13,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:13,826 INFO L93 Difference]: Finished difference Result 664 states and 898 transitions. [2023-12-21 14:13:13,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 14:13:13,826 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-21 14:13:13,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:13,827 INFO L225 Difference]: With dead ends: 664 [2023-12-21 14:13:13,827 INFO L226 Difference]: Without dead ends: 638 [2023-12-21 14:13:13,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-21 14:13:13,827 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 1396 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 4397 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:13,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 4397 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:13:13,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-12-21 14:13:13,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 184. [2023-12-21 14:13:13,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.2349726775956285) internal successors, (226), 183 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:13,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 226 transitions. [2023-12-21 14:13:13,830 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 226 transitions. Word has length 103 [2023-12-21 14:13:13,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:13,830 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 226 transitions. [2023-12-21 14:13:13,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:13,830 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 226 transitions. [2023-12-21 14:13:13,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-21 14:13:13,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:13,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:13,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2023-12-21 14:13:13,830 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:13,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:13,831 INFO L85 PathProgramCache]: Analyzing trace with hash -261467090, now seen corresponding path program 1 times [2023-12-21 14:13:13,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:13,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477766826] [2023-12-21 14:13:13,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:13,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:13,929 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 14:13:13,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:13,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477766826] [2023-12-21 14:13:13,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477766826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:13,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:13,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:13,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736891886] [2023-12-21 14:13:13,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:13,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:13,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:13,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:13,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:13,930 INFO L87 Difference]: Start difference. First operand 184 states and 226 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:14,091 INFO L93 Difference]: Finished difference Result 1084 states and 1546 transitions. [2023-12-21 14:13:14,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:13:14,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2023-12-21 14:13:14,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:14,092 INFO L225 Difference]: With dead ends: 1084 [2023-12-21 14:13:14,093 INFO L226 Difference]: Without dead ends: 1009 [2023-12-21 14:13:14,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:13:14,093 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1795 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 3628 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:14,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 3628 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:14,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2023-12-21 14:13:14,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 257. [2023-12-21 14:13:14,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.30078125) internal successors, (333), 256 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 333 transitions. [2023-12-21 14:13:14,096 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 333 transitions. Word has length 134 [2023-12-21 14:13:14,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:14,097 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 333 transitions. [2023-12-21 14:13:14,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,097 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 333 transitions. [2023-12-21 14:13:14,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 14:13:14,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:14,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:14,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2023-12-21 14:13:14,098 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:14,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:14,098 INFO L85 PathProgramCache]: Analyzing trace with hash 225254308, now seen corresponding path program 1 times [2023-12-21 14:13:14,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:14,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130429685] [2023-12-21 14:13:14,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:14,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:14,209 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 14:13:14,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:14,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130429685] [2023-12-21 14:13:14,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130429685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:14,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:14,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:14,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475660390] [2023-12-21 14:13:14,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:14,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:14,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:14,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:14,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:14,210 INFO L87 Difference]: Start difference. First operand 257 states and 333 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:14,335 INFO L93 Difference]: Finished difference Result 1220 states and 1743 transitions. [2023-12-21 14:13:14,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:13:14,335 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-21 14:13:14,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:14,336 INFO L225 Difference]: With dead ends: 1220 [2023-12-21 14:13:14,336 INFO L226 Difference]: Without dead ends: 1072 [2023-12-21 14:13:14,337 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 14:13:14,337 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 1519 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:14,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1918 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:14,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-12-21 14:13:14,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 403. [2023-12-21 14:13:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 1.36318407960199) internal successors, (548), 402 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 548 transitions. [2023-12-21 14:13:14,342 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 548 transitions. Word has length 136 [2023-12-21 14:13:14,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:14,342 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 548 transitions. [2023-12-21 14:13:14,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,342 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 548 transitions. [2023-12-21 14:13:14,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 14:13:14,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:14,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:14,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2023-12-21 14:13:14,343 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:14,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:14,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1290742750, now seen corresponding path program 1 times [2023-12-21 14:13:14,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:14,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505701677] [2023-12-21 14:13:14,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:14,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:14,446 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 14:13:14,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:14,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505701677] [2023-12-21 14:13:14,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505701677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:14,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:14,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:14,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83701791] [2023-12-21 14:13:14,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:14,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:14,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:14,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:14,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:14,448 INFO L87 Difference]: Start difference. First operand 403 states and 548 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:14,548 INFO L93 Difference]: Finished difference Result 1366 states and 1958 transitions. [2023-12-21 14:13:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:13:14,548 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-21 14:13:14,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:14,549 INFO L225 Difference]: With dead ends: 1366 [2023-12-21 14:13:14,549 INFO L226 Difference]: Without dead ends: 1218 [2023-12-21 14:13:14,549 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 14:13:14,550 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 1519 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:14,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1828 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:14,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2023-12-21 14:13:14,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 622. [2023-12-21 14:13:14,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 621 states have (on average 1.4009661835748792) internal successors, (870), 621 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 870 transitions. [2023-12-21 14:13:14,555 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 870 transitions. Word has length 136 [2023-12-21 14:13:14,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:14,556 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 870 transitions. [2023-12-21 14:13:14,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,556 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 870 transitions. [2023-12-21 14:13:14,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 14:13:14,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:14,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:14,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2023-12-21 14:13:14,556 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:14,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:14,557 INFO L85 PathProgramCache]: Analyzing trace with hash 655189144, now seen corresponding path program 1 times [2023-12-21 14:13:14,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:14,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498173538] [2023-12-21 14:13:14,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:14,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:14,677 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 14:13:14,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:14,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498173538] [2023-12-21 14:13:14,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498173538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:14,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:14,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:14,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782784263] [2023-12-21 14:13:14,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:14,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:14,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:14,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:14,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:14,679 INFO L87 Difference]: Start difference. First operand 622 states and 870 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:14,776 INFO L93 Difference]: Finished difference Result 1512 states and 2173 transitions. [2023-12-21 14:13:14,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:13:14,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-21 14:13:14,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:14,778 INFO L225 Difference]: With dead ends: 1512 [2023-12-21 14:13:14,778 INFO L226 Difference]: Without dead ends: 1364 [2023-12-21 14:13:14,778 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 14:13:14,778 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1594 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:14,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 1736 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:14,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2023-12-21 14:13:14,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 768. [2023-12-21 14:13:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 767 states have (on average 1.4146023468057367) internal successors, (1085), 767 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1085 transitions. [2023-12-21 14:13:14,785 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1085 transitions. Word has length 136 [2023-12-21 14:13:14,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:14,785 INFO L495 AbstractCegarLoop]: Abstraction has 768 states and 1085 transitions. [2023-12-21 14:13:14,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1085 transitions. [2023-12-21 14:13:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 14:13:14,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:14,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:14,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2023-12-21 14:13:14,786 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:14,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:14,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1681502324, now seen corresponding path program 1 times [2023-12-21 14:13:14,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:14,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468557592] [2023-12-21 14:13:14,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:14,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:14,889 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 14:13:14,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:14,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468557592] [2023-12-21 14:13:14,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468557592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:14,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:14,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:14,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938529609] [2023-12-21 14:13:14,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:14,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:14,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:14,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:14,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:14,890 INFO L87 Difference]: Start difference. First operand 768 states and 1085 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:14,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:14,991 INFO L93 Difference]: Finished difference Result 1658 states and 2388 transitions. [2023-12-21 14:13:14,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:13:14,991 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-21 14:13:14,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:14,992 INFO L225 Difference]: With dead ends: 1658 [2023-12-21 14:13:14,992 INFO L226 Difference]: Without dead ends: 1510 [2023-12-21 14:13:14,992 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 14:13:14,993 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 1703 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:14,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1703 Valid, 1781 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:14,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2023-12-21 14:13:14,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 914. [2023-12-21 14:13:15,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 913 states have (on average 1.4238773274917853) internal successors, (1300), 913 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1300 transitions. [2023-12-21 14:13:15,000 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1300 transitions. Word has length 136 [2023-12-21 14:13:15,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:15,001 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1300 transitions. [2023-12-21 14:13:15,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,001 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1300 transitions. [2023-12-21 14:13:15,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 14:13:15,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:15,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:15,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2023-12-21 14:13:15,002 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:15,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:15,002 INFO L85 PathProgramCache]: Analyzing trace with hash 841520143, now seen corresponding path program 1 times [2023-12-21 14:13:15,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:15,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566449581] [2023-12-21 14:13:15,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:15,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:15,054 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 14:13:15,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:15,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566449581] [2023-12-21 14:13:15,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566449581] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:15,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:15,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:15,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551506869] [2023-12-21 14:13:15,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:15,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:15,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:15,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:15,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:15,055 INFO L87 Difference]: Start difference. First operand 914 states and 1300 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:15,081 INFO L93 Difference]: Finished difference Result 1721 states and 2485 transitions. [2023-12-21 14:13:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:15,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-21 14:13:15,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:15,082 INFO L225 Difference]: With dead ends: 1721 [2023-12-21 14:13:15,082 INFO L226 Difference]: Without dead ends: 916 [2023-12-21 14:13:15,084 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 14:13:15,085 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 86 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:15,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 373 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:15,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2023-12-21 14:13:15,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 914. [2023-12-21 14:13:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 913 states have (on average 1.4173055859802848) internal successors, (1294), 913 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1294 transitions. [2023-12-21 14:13:15,093 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1294 transitions. Word has length 136 [2023-12-21 14:13:15,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:15,093 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1294 transitions. [2023-12-21 14:13:15,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1294 transitions. [2023-12-21 14:13:15,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 14:13:15,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:15,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:15,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2023-12-21 14:13:15,094 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:15,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:15,094 INFO L85 PathProgramCache]: Analyzing trace with hash 72227150, now seen corresponding path program 1 times [2023-12-21 14:13:15,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:15,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490930305] [2023-12-21 14:13:15,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:15,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:15,155 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 14:13:15,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:15,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490930305] [2023-12-21 14:13:15,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490930305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:15,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:15,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:15,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866816478] [2023-12-21 14:13:15,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:15,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:15,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:15,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:15,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:15,157 INFO L87 Difference]: Start difference. First operand 914 states and 1294 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:15,176 INFO L93 Difference]: Finished difference Result 2453 states and 3531 transitions. [2023-12-21 14:13:15,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:15,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-21 14:13:15,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:15,177 INFO L225 Difference]: With dead ends: 2453 [2023-12-21 14:13:15,177 INFO L226 Difference]: Without dead ends: 1648 [2023-12-21 14:13:15,178 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 14:13:15,178 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 97 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:15,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 530 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:15,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2023-12-21 14:13:15,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1646. [2023-12-21 14:13:15,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 1645 states have (on average 1.4164133738601823) internal successors, (2330), 1645 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2330 transitions. [2023-12-21 14:13:15,217 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2330 transitions. Word has length 136 [2023-12-21 14:13:15,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:15,217 INFO L495 AbstractCegarLoop]: Abstraction has 1646 states and 2330 transitions. [2023-12-21 14:13:15,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2330 transitions. [2023-12-21 14:13:15,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 14:13:15,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:15,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:15,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2023-12-21 14:13:15,218 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:15,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:15,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1617232326, now seen corresponding path program 1 times [2023-12-21 14:13:15,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:15,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733642534] [2023-12-21 14:13:15,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:15,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:15,373 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 14:13:15,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:15,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733642534] [2023-12-21 14:13:15,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733642534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:15,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:15,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:15,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318771057] [2023-12-21 14:13:15,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:15,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:15,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:15,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:15,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:15,374 INFO L87 Difference]: Start difference. First operand 1646 states and 2330 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:15,538 INFO L93 Difference]: Finished difference Result 3334 states and 4761 transitions. [2023-12-21 14:13:15,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:13:15,539 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-21 14:13:15,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:15,540 INFO L225 Difference]: With dead ends: 3334 [2023-12-21 14:13:15,541 INFO L226 Difference]: Without dead ends: 3053 [2023-12-21 14:13:15,556 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 14:13:15,556 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1546 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:15,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 1854 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:15,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2023-12-21 14:13:15,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 1925. [2023-12-21 14:13:15,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1924 states have (on average 1.4199584199584199) internal successors, (2732), 1924 states have internal predecessors, (2732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2732 transitions. [2023-12-21 14:13:15,577 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2732 transitions. Word has length 136 [2023-12-21 14:13:15,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:15,577 INFO L495 AbstractCegarLoop]: Abstraction has 1925 states and 2732 transitions. [2023-12-21 14:13:15,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2732 transitions. [2023-12-21 14:13:15,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 14:13:15,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:15,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:15,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2023-12-21 14:13:15,579 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:15,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:15,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2097560110, now seen corresponding path program 1 times [2023-12-21 14:13:15,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:15,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127848980] [2023-12-21 14:13:15,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:15,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:15,736 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 14:13:15,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:15,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127848980] [2023-12-21 14:13:15,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127848980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:15,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:15,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:13:15,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715503803] [2023-12-21 14:13:15,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:15,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:13:15,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:15,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:13:15,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:13:15,737 INFO L87 Difference]: Start difference. First operand 1925 states and 2732 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:15,882 INFO L93 Difference]: Finished difference Result 3613 states and 5163 transitions. [2023-12-21 14:13:15,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:13:15,883 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-21 14:13:15,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:15,885 INFO L225 Difference]: With dead ends: 3613 [2023-12-21 14:13:15,885 INFO L226 Difference]: Without dead ends: 3332 [2023-12-21 14:13:15,899 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 14:13:15,900 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1442 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 2078 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:15,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 2078 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:13:15,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2023-12-21 14:13:15,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 2204. [2023-12-21 14:13:15,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 2203 states have (on average 1.4226055379028597) internal successors, (3134), 2203 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 3134 transitions. [2023-12-21 14:13:15,937 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 3134 transitions. Word has length 136 [2023-12-21 14:13:15,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:15,937 INFO L495 AbstractCegarLoop]: Abstraction has 2204 states and 3134 transitions. [2023-12-21 14:13:15,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:15,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 3134 transitions. [2023-12-21 14:13:15,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-21 14:13:15,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:15,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:15,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2023-12-21 14:13:15,940 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:15,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash 258153237, now seen corresponding path program 1 times [2023-12-21 14:13:15,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:15,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376618263] [2023-12-21 14:13:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:15,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:16,116 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 14:13:16,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:16,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376618263] [2023-12-21 14:13:16,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376618263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:16,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:16,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:16,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397152569] [2023-12-21 14:13:16,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:16,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:16,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:16,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:16,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:16,119 INFO L87 Difference]: Start difference. First operand 2204 states and 3134 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:16,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:16,153 INFO L93 Difference]: Finished difference Result 5509 states and 7864 transitions. [2023-12-21 14:13:16,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:16,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-21 14:13:16,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:16,155 INFO L225 Difference]: With dead ends: 5509 [2023-12-21 14:13:16,155 INFO L226 Difference]: Without dead ends: 3414 [2023-12-21 14:13:16,156 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 14:13:16,171 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 112 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:16,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 492 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:16,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3414 states. [2023-12-21 14:13:16,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3414 to 3292. [2023-12-21 14:13:16,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 3291 states have (on average 1.4175022789425706) internal successors, (4665), 3291 states have internal predecessors, (4665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:16,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 4665 transitions. [2023-12-21 14:13:16,200 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 4665 transitions. Word has length 137 [2023-12-21 14:13:16,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:16,200 INFO L495 AbstractCegarLoop]: Abstraction has 3292 states and 4665 transitions. [2023-12-21 14:13:16,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:16,200 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 4665 transitions. [2023-12-21 14:13:16,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 14:13:16,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:16,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:16,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2023-12-21 14:13:16,201 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:16,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:16,202 INFO L85 PathProgramCache]: Analyzing trace with hash 541145819, now seen corresponding path program 1 times [2023-12-21 14:13:16,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:16,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791549669] [2023-12-21 14:13:16,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:16,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:16,371 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 14:13:16,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:16,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791549669] [2023-12-21 14:13:16,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791549669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:16,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:16,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:16,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540018518] [2023-12-21 14:13:16,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:16,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:16,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:16,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:16,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:16,372 INFO L87 Difference]: Start difference. First operand 3292 states and 4665 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:16,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:16,412 INFO L93 Difference]: Finished difference Result 9478 states and 13448 transitions. [2023-12-21 14:13:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:16,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 14:13:16,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:16,417 INFO L225 Difference]: With dead ends: 9478 [2023-12-21 14:13:16,418 INFO L226 Difference]: Without dead ends: 6295 [2023-12-21 14:13:16,420 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 14:13:16,420 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 105 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:16,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 492 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:16,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6295 states. [2023-12-21 14:13:16,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6295 to 6113. [2023-12-21 14:13:16,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6113 states, 6112 states have (on average 1.411649214659686) internal successors, (8628), 6112 states have internal predecessors, (8628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:16,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6113 states to 6113 states and 8628 transitions. [2023-12-21 14:13:16,480 INFO L78 Accepts]: Start accepts. Automaton has 6113 states and 8628 transitions. Word has length 138 [2023-12-21 14:13:16,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:16,480 INFO L495 AbstractCegarLoop]: Abstraction has 6113 states and 8628 transitions. [2023-12-21 14:13:16,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:16,480 INFO L276 IsEmpty]: Start isEmpty. Operand 6113 states and 8628 transitions. [2023-12-21 14:13:16,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-21 14:13:16,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:16,481 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:16,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2023-12-21 14:13:16,481 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:16,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:16,481 INFO L85 PathProgramCache]: Analyzing trace with hash -262829556, now seen corresponding path program 1 times [2023-12-21 14:13:16,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:16,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094080088] [2023-12-21 14:13:16,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:16,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:16,589 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 14:13:16,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:16,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094080088] [2023-12-21 14:13:16,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094080088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:16,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:16,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:16,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137012212] [2023-12-21 14:13:16,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:16,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:16,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:16,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:16,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:16,591 INFO L87 Difference]: Start difference. First operand 6113 states and 8628 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:16,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:16,626 INFO L93 Difference]: Finished difference Result 17761 states and 25022 transitions. [2023-12-21 14:13:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:16,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2023-12-21 14:13:16,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:16,636 INFO L225 Difference]: With dead ends: 17761 [2023-12-21 14:13:16,636 INFO L226 Difference]: Without dead ends: 11757 [2023-12-21 14:13:16,648 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 14:13:16,648 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 98 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:16,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 492 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:16,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11757 states. [2023-12-21 14:13:16,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11757 to 11395. [2023-12-21 14:13:16,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11395 states, 11394 states have (on average 1.4015271195365981) internal successors, (15969), 11394 states have internal predecessors, (15969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:16,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11395 states to 11395 states and 15969 transitions. [2023-12-21 14:13:16,775 INFO L78 Accepts]: Start accepts. Automaton has 11395 states and 15969 transitions. Word has length 139 [2023-12-21 14:13:16,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:16,775 INFO L495 AbstractCegarLoop]: Abstraction has 11395 states and 15969 transitions. [2023-12-21 14:13:16,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:16,776 INFO L276 IsEmpty]: Start isEmpty. Operand 11395 states and 15969 transitions. [2023-12-21 14:13:16,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-21 14:13:16,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:16,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:16,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2023-12-21 14:13:16,776 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:16,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:16,777 INFO L85 PathProgramCache]: Analyzing trace with hash -754057410, now seen corresponding path program 1 times [2023-12-21 14:13:16,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:16,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826422014] [2023-12-21 14:13:16,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:16,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:16,880 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 14:13:16,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:16,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826422014] [2023-12-21 14:13:16,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826422014] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:16,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:16,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:16,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107877328] [2023-12-21 14:13:16,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:16,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:16,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:16,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:16,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:16,882 INFO L87 Difference]: Start difference. First operand 11395 states and 15969 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:16,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:16,943 INFO L93 Difference]: Finished difference Result 33247 states and 46415 transitions. [2023-12-21 14:13:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:16,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-21 14:13:16,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:16,963 INFO L225 Difference]: With dead ends: 33247 [2023-12-21 14:13:16,964 INFO L226 Difference]: Without dead ends: 21961 [2023-12-21 14:13:16,975 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 14:13:16,975 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 91 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:16,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 492 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:16,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21961 states. [2023-12-21 14:13:17,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21961 to 21239. [2023-12-21 14:13:17,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21239 states, 21238 states have (on average 1.3881250588567662) internal successors, (29481), 21238 states have internal predecessors, (29481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:17,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21239 states to 21239 states and 29481 transitions. [2023-12-21 14:13:17,210 INFO L78 Accepts]: Start accepts. Automaton has 21239 states and 29481 transitions. Word has length 140 [2023-12-21 14:13:17,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:17,210 INFO L495 AbstractCegarLoop]: Abstraction has 21239 states and 29481 transitions. [2023-12-21 14:13:17,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:17,210 INFO L276 IsEmpty]: Start isEmpty. Operand 21239 states and 29481 transitions. [2023-12-21 14:13:17,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 14:13:17,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:17,212 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 14:13:17,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2023-12-21 14:13:17,212 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:17,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:17,213 INFO L85 PathProgramCache]: Analyzing trace with hash -382631269, now seen corresponding path program 1 times [2023-12-21 14:13:17,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:17,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198739263] [2023-12-21 14:13:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:17,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:17,288 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 14:13:17,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:17,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198739263] [2023-12-21 14:13:17,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198739263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:17,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:17,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:17,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216863986] [2023-12-21 14:13:17,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:17,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:17,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:17,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:17,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:17,289 INFO L87 Difference]: Start difference. First operand 21239 states and 29481 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:17,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:17,468 INFO L93 Difference]: Finished difference Result 62059 states and 85691 transitions. [2023-12-21 14:13:17,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:17,472 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 14:13:17,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:17,504 INFO L225 Difference]: With dead ends: 62059 [2023-12-21 14:13:17,505 INFO L226 Difference]: Without dead ends: 40929 [2023-12-21 14:13:17,525 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 14:13:17,526 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 84 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:17,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 491 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:17,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40929 states. [2023-12-21 14:13:17,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40929 to 39487. [2023-12-21 14:13:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39487 states, 39486 states have (on average 1.371752013371828) internal successors, (54165), 39486 states have internal predecessors, (54165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:17,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39487 states to 39487 states and 54165 transitions. [2023-12-21 14:13:17,882 INFO L78 Accepts]: Start accepts. Automaton has 39487 states and 54165 transitions. Word has length 141 [2023-12-21 14:13:17,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:17,882 INFO L495 AbstractCegarLoop]: Abstraction has 39487 states and 54165 transitions. [2023-12-21 14:13:17,882 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 14:13:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 39487 states and 54165 transitions. [2023-12-21 14:13:17,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 14:13:17,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:17,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:17,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2023-12-21 14:13:17,883 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:17,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:17,883 INFO L85 PathProgramCache]: Analyzing trace with hash 473251129, now seen corresponding path program 1 times [2023-12-21 14:13:17,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:17,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043542118] [2023-12-21 14:13:17,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:17,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:17,997 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 14:13:17,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:17,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043542118] [2023-12-21 14:13:17,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043542118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:17,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:17,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:17,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436119129] [2023-12-21 14:13:17,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:17,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:17,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:17,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:17,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:17,998 INFO L87 Difference]: Start difference. First operand 39487 states and 54165 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:18,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:18,387 INFO L93 Difference]: Finished difference Result 115363 states and 157223 transitions. [2023-12-21 14:13:18,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:18,387 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 14:13:18,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:18,472 INFO L225 Difference]: With dead ends: 115363 [2023-12-21 14:13:18,472 INFO L226 Difference]: Without dead ends: 75985 [2023-12-21 14:13:18,508 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 14:13:18,509 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 74 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:18,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 489 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:18,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75985 states. [2023-12-21 14:13:19,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75985 to 73103. [2023-12-21 14:13:19,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73103 states, 73102 states have (on average 1.3522612240431178) internal successors, (98853), 73102 states have internal predecessors, (98853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:19,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73103 states to 73103 states and 98853 transitions. [2023-12-21 14:13:19,512 INFO L78 Accepts]: Start accepts. Automaton has 73103 states and 98853 transitions. Word has length 142 [2023-12-21 14:13:19,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:19,512 INFO L495 AbstractCegarLoop]: Abstraction has 73103 states and 98853 transitions. [2023-12-21 14:13:19,512 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 14:13:19,512 INFO L276 IsEmpty]: Start isEmpty. Operand 73103 states and 98853 transitions. [2023-12-21 14:13:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 14:13:19,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:19,513 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 14:13:19,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2023-12-21 14:13:19,513 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:19,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:19,513 INFO L85 PathProgramCache]: Analyzing trace with hash -477023038, now seen corresponding path program 1 times [2023-12-21 14:13:19,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:19,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904348757] [2023-12-21 14:13:19,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:19,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:19,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:19,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:19,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904348757] [2023-12-21 14:13:19,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904348757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:19,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:19,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 14:13:19,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123114732] [2023-12-21 14:13:19,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:19,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 14:13:19,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:19,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 14:13:19,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 14:13:19,804 INFO L87 Difference]: Start difference. First operand 73103 states and 98853 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:20,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:20,220 INFO L93 Difference]: Finished difference Result 113397 states and 152884 transitions. [2023-12-21 14:13:20,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 14:13:20,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2023-12-21 14:13:20,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:20,360 INFO L225 Difference]: With dead ends: 113397 [2023-12-21 14:13:20,361 INFO L226 Difference]: Without dead ends: 113395 [2023-12-21 14:13:20,393 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 14:13:20,394 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 363 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:20,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1153 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:20,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113395 states. [2023-12-21 14:13:21,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113395 to 74447. [2023-12-21 14:13:21,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74447 states, 74446 states have (on average 1.339024259194584) internal successors, (99685), 74446 states have internal predecessors, (99685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:21,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74447 states to 74447 states and 99685 transitions. [2023-12-21 14:13:21,671 INFO L78 Accepts]: Start accepts. Automaton has 74447 states and 99685 transitions. Word has length 143 [2023-12-21 14:13:21,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:21,671 INFO L495 AbstractCegarLoop]: Abstraction has 74447 states and 99685 transitions. [2023-12-21 14:13:21,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:21,671 INFO L276 IsEmpty]: Start isEmpty. Operand 74447 states and 99685 transitions. [2023-12-21 14:13:21,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 14:13:21,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:21,684 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 14:13:21,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2023-12-21 14:13:21,684 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:21,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:21,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1949863942, now seen corresponding path program 1 times [2023-12-21 14:13:21,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:21,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881588522] [2023-12-21 14:13:21,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:21,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:21,775 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 14:13:21,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:21,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881588522] [2023-12-21 14:13:21,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881588522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:13:21,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:13:21,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:13:21,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366061156] [2023-12-21 14:13:21,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:13:21,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:13:21,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:21,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:13:21,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:13:21,777 INFO L87 Difference]: Start difference. First operand 74447 states and 99685 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:22,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:13:22,167 INFO L93 Difference]: Finished difference Result 150483 states and 201543 transitions. [2023-12-21 14:13:22,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:13:22,168 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 14:13:22,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:13:22,249 INFO L225 Difference]: With dead ends: 150483 [2023-12-21 14:13:22,249 INFO L226 Difference]: Without dead ends: 76145 [2023-12-21 14:13:22,273 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 14:13:22,273 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 129 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:13:22,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 407 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:13:22,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76145 states. [2023-12-21 14:13:23,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76145 to 76143. [2023-12-21 14:13:23,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76143 states, 76142 states have (on average 1.3262194321136824) internal successors, (100981), 76142 states have internal predecessors, (100981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:13:23,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76143 states to 76143 states and 100981 transitions. [2023-12-21 14:13:23,346 INFO L78 Accepts]: Start accepts. Automaton has 76143 states and 100981 transitions. Word has length 143 [2023-12-21 14:13:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:13:23,346 INFO L495 AbstractCegarLoop]: Abstraction has 76143 states and 100981 transitions. [2023-12-21 14:13:23,347 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 14:13:23,347 INFO L276 IsEmpty]: Start isEmpty. Operand 76143 states and 100981 transitions. [2023-12-21 14:13:23,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-21 14:13:23,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:13:23,354 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:13:23,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2023-12-21 14:13:23,354 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:13:23,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:13:23,354 INFO L85 PathProgramCache]: Analyzing trace with hash 896095117, now seen corresponding path program 1 times [2023-12-21 14:13:23,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:13:23,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139273810] [2023-12-21 14:13:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:23,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:13:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:13:23,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:13:23,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139273810] [2023-12-21 14:13:23,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139273810] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:13:23,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046968746] [2023-12-21 14:13:23,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:13:23,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:13:23,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:13:23,829 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 14:13:23,834 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 14:13:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:13:24,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 14:13:24,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:13:24,930 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 14:13:24,931 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:13:26,209 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 14:13:26,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046968746] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:13:26,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:13:26,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 30 [2023-12-21 14:13:26,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149352256] [2023-12-21 14:13:26,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:13:26,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-21 14:13:26,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:13:26,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-21 14:13:26,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=825, Unknown=0, NotChecked=0, Total=930 [2023-12-21 14:13:26,212 INFO L87 Difference]: Start difference. First operand 76143 states and 100981 transitions. Second operand has 31 states, 31 states have (on average 15.64516129032258) internal successors, (485), 30 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:14:22,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:14:22,140 INFO L93 Difference]: Finished difference Result 2317144 states and 3020540 transitions. [2023-12-21 14:14:22,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 713 states. [2023-12-21 14:14:22,140 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 15.64516129032258) internal successors, (485), 30 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2023-12-21 14:14:22,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:14:27,569 INFO L225 Difference]: With dead ends: 2317144 [2023-12-21 14:14:27,569 INFO L226 Difference]: Without dead ends: 2241110 [2023-12-21 14:14:28,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1078 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 740 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252467 ImplicationChecksByTransitivity, 41.2s TimeCoverageRelationStatistics Valid=53172, Invalid=496650, Unknown=0, NotChecked=0, Total=549822 [2023-12-21 14:14:28,030 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 17716 mSDsluCounter, 7900 mSDsCounter, 0 mSdLazyCounter, 8095 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17716 SdHoareTripleChecker+Valid, 8433 SdHoareTripleChecker+Invalid, 8200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 8095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:14:28,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17716 Valid, 8433 Invalid, 8200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [105 Valid, 8095 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-21 14:14:29,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241110 states. [2023-12-21 14:14:43,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241110 to 375510. [2023-12-21 14:14:43,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375510 states, 375509 states have (on average 1.316298677262063) internal successors, (494282), 375509 states have internal predecessors, (494282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:14:44,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375510 states to 375510 states and 494282 transitions. [2023-12-21 14:14:44,599 INFO L78 Accepts]: Start accepts. Automaton has 375510 states and 494282 transitions. Word has length 179 [2023-12-21 14:14:44,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:14:44,599 INFO L495 AbstractCegarLoop]: Abstraction has 375510 states and 494282 transitions. [2023-12-21 14:14:44,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 15.64516129032258) internal successors, (485), 30 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:14:44,599 INFO L276 IsEmpty]: Start isEmpty. Operand 375510 states and 494282 transitions. [2023-12-21 14:14:44,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-21 14:14:44,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:14:44,628 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:14:44,635 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 14:14:44,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2023-12-21 14:14:44,835 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-21 14:14:44,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:14:44,835 INFO L85 PathProgramCache]: Analyzing trace with hash -2132455148, now seen corresponding path program 1 times [2023-12-21 14:14:44,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:14:44,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509791165] [2023-12-21 14:14:44,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:14:44,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:14:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:14:45,828 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 14:14:45,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:14:45,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509791165] [2023-12-21 14:14:45,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509791165] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:14:45,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739587476] [2023-12-21 14:14:45,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:14:45,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:14:45,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:14:45,842 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 14:14:45,885 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 14:14:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:14:46,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 14:14:46,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:14:46,950 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:14:46,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:14:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:14:47,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739587476] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:14:47,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:14:47,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 29 [2023-12-21 14:14:47,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723949404] [2023-12-21 14:14:47,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:14:47,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-21 14:14:47,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:14:47,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-21 14:14:47,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2023-12-21 14:14:47,644 INFO L87 Difference]: Start difference. First operand 375510 states and 494282 transitions. Second operand has 29 states, 29 states have (on average 16.689655172413794) internal successors, (484), 29 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)