/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 02:55:28,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 02:55:28,331 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 02:55:28,336 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 02:55:28,337 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 02:55:28,351 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 02:55:28,352 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 02:55:28,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 02:55:28,352 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 02:55:28,353 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 02:55:28,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 02:55:28,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 02:55:28,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 02:55:28,354 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 02:55:28,354 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 02:55:28,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 02:55:28,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 02:55:28,355 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 02:55:28,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 02:55:28,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 02:55:28,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 02:55:28,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 02:55:28,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 02:55:28,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 02:55:28,356 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 02:55:28,356 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 02:55:28,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 02:55:28,357 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 02:55:28,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 02:55:28,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 02:55:28,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 02:55:28,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 02:55:28,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:55:28,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 02:55:28,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 02:55:28,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 02:55:28,358 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 02:55:28,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 02:55:28,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 02:55:28,359 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 02:55:28,359 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 02:55:28,372 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 02:55:28,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 02:55:28,372 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 02:55:28,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 02:55:28,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 02:55:28,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 02:55:28,582 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 02:55:28,583 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 02:55:28,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2023-12-20 02:55:29,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 02:55:30,089 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 02:55:30,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2023-12-20 02:55:30,131 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdbbf812c/80a6fd0760ab4554a86e1638fc6daa28/FLAG5f7ddce41 [2023-12-20 02:55:30,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdbbf812c/80a6fd0760ab4554a86e1638fc6daa28 [2023-12-20 02:55:30,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 02:55:30,147 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 02:55:30,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 02:55:30,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 02:55:30,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 02:55:30,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:55:30" (1/1) ... [2023-12-20 02:55:30,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c5c976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:30, skipping insertion in model container [2023-12-20 02:55:30,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:55:30" (1/1) ... [2023-12-20 02:55:30,323 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 02:55:30,754 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32607,32620] [2023-12-20 02:55:30,776 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39665,39678] [2023-12-20 02:55:30,880 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66766,66779] [2023-12-20 02:55:30,898 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[75829,75842] [2023-12-20 02:55:30,912 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82520,82533] [2023-12-20 02:55:30,940 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94424,94437] [2023-12-20 02:55:30,959 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103377,103390] [2023-12-20 02:55:30,970 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111402,111415] [2023-12-20 02:55:31,040 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[149914,149927] [2023-12-20 02:55:31,045 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153444,153457] [2023-12-20 02:55:31,082 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[162451,162464] [2023-12-20 02:55:31,107 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169104,169117] [2023-12-20 02:55:31,142 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[194798,194811] [2023-12-20 02:55:31,190 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[226694,226707] [2023-12-20 02:55:31,235 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[256902,256915] [2023-12-20 02:55:31,308 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[287214,287227] [2023-12-20 02:55:31,355 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[320546,320559] [2023-12-20 02:55:31,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:55:31,538 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 02:55:31,627 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32607,32620] [2023-12-20 02:55:31,640 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39665,39678] [2023-12-20 02:55:31,682 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66766,66779] [2023-12-20 02:55:31,692 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[75829,75842] [2023-12-20 02:55:31,701 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82520,82533] [2023-12-20 02:55:31,715 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94424,94437] [2023-12-20 02:55:31,726 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103377,103390] [2023-12-20 02:55:31,739 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111402,111415] [2023-12-20 02:55:31,776 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[149914,149927] [2023-12-20 02:55:31,780 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153444,153457] [2023-12-20 02:55:31,789 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[162451,162464] [2023-12-20 02:55:31,796 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169104,169117] [2023-12-20 02:55:31,820 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[194798,194811] [2023-12-20 02:55:31,849 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[226694,226707] [2023-12-20 02:55:31,877 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[256902,256915] [2023-12-20 02:55:31,906 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[287214,287227] [2023-12-20 02:55:31,941 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[320546,320559] [2023-12-20 02:55:32,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:55:32,124 INFO L206 MainTranslator]: Completed translation [2023-12-20 02:55:32,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32 WrapperNode [2023-12-20 02:55:32,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 02:55:32,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 02:55:32,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 02:55:32,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 02:55:32,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (1/1) ... [2023-12-20 02:55:32,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (1/1) ... [2023-12-20 02:55:32,384 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19330 [2023-12-20 02:55:32,384 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 02:55:32,385 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 02:55:32,386 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 02:55:32,386 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 02:55:32,393 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (1/1) ... [2023-12-20 02:55:32,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (1/1) ... [2023-12-20 02:55:32,443 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (1/1) ... [2023-12-20 02:55:32,537 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 02:55:32,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (1/1) ... [2023-12-20 02:55:32,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (1/1) ... [2023-12-20 02:55:32,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (1/1) ... [2023-12-20 02:55:32,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (1/1) ... [2023-12-20 02:55:32,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (1/1) ... [2023-12-20 02:55:32,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (1/1) ... [2023-12-20 02:55:32,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 02:55:32,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 02:55:32,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 02:55:32,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 02:55:32,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (1/1) ... [2023-12-20 02:55:32,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:55:32,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:55:32,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 02:55:32,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 02:55:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 02:55:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 02:55:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 02:55:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 02:55:33,429 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 02:55:33,431 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 02:55:38,190 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 02:55:38,301 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 02:55:38,301 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 02:55:38,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:55:38 BoogieIcfgContainer [2023-12-20 02:55:38,302 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 02:55:38,304 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 02:55:38,304 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 02:55:38,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 02:55:38,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 02:55:30" (1/3) ... [2023-12-20 02:55:38,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78710d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:55:38, skipping insertion in model container [2023-12-20 02:55:38,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:55:32" (2/3) ... [2023-12-20 02:55:38,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78710d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:55:38, skipping insertion in model container [2023-12-20 02:55:38,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:55:38" (3/3) ... [2023-12-20 02:55:38,308 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2023-12-20 02:55:38,320 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 02:55:38,320 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-12-20 02:55:38,414 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 02:55:38,420 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;@15b99830, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 02:55:38,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-12-20 02:55:38,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 3730 states, 3712 states have (on average 1.78125) internal successors, (6612), 3729 states have internal predecessors, (6612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:38,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 02:55:38,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:38,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:38,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:55:38,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:38,466 INFO L85 PathProgramCache]: Analyzing trace with hash -354004625, now seen corresponding path program 1 times [2023-12-20 02:55:38,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:38,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786731707] [2023-12-20 02:55:38,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:38,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:39,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:39,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786731707] [2023-12-20 02:55:39,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786731707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:39,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:39,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:55:39,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093496887] [2023-12-20 02:55:39,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:39,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:55:39,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:39,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:55:39,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:55:39,070 INFO L87 Difference]: Start difference. First operand has 3730 states, 3712 states have (on average 1.78125) internal successors, (6612), 3729 states have internal predecessors, (6612), 0 states have call successors, (0), 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 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:42,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:42,004 INFO L93 Difference]: Finished difference Result 7018 states and 12196 transitions. [2023-12-20 02:55:42,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:55:42,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-12-20 02:55:42,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:42,029 INFO L225 Difference]: With dead ends: 7018 [2023-12-20 02:55:42,029 INFO L226 Difference]: Without dead ends: 4501 [2023-12-20 02:55:42,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:55:42,040 INFO L413 NwaCegarLoop]: 2968 mSDtfsCounter, 20481 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 3529 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20481 SdHoareTripleChecker+Valid, 4254 SdHoareTripleChecker+Invalid, 3664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 3529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:42,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20481 Valid, 4254 Invalid, 3664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 3529 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-20 02:55:42,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4501 states. [2023-12-20 02:55:42,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4501 to 4476. [2023-12-20 02:55:42,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4476 states, 4459 states have (on average 1.3018614039022203) internal successors, (5805), 4475 states have internal predecessors, (5805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:42,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4476 states to 4476 states and 5805 transitions. [2023-12-20 02:55:42,187 INFO L78 Accepts]: Start accepts. Automaton has 4476 states and 5805 transitions. Word has length 64 [2023-12-20 02:55:42,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:42,188 INFO L495 AbstractCegarLoop]: Abstraction has 4476 states and 5805 transitions. [2023-12-20 02:55:42,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:42,188 INFO L276 IsEmpty]: Start isEmpty. Operand 4476 states and 5805 transitions. [2023-12-20 02:55:42,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-20 02:55:42,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:42,279 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] [2023-12-20 02:55:42,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 02:55:42,279 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:55:42,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:42,280 INFO L85 PathProgramCache]: Analyzing trace with hash 838909937, now seen corresponding path program 1 times [2023-12-20 02:55:42,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:42,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524947679] [2023-12-20 02:55:42,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:42,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:42,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:42,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:42,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524947679] [2023-12-20 02:55:42,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524947679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:42,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:42,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:55:42,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386472071] [2023-12-20 02:55:42,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:42,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:55:42,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:42,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:55:42,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:55:42,574 INFO L87 Difference]: Start difference. First operand 4476 states and 5805 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:44,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:44,491 INFO L93 Difference]: Finished difference Result 8428 states and 10952 transitions. [2023-12-20 02:55:44,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:55:44,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-20 02:55:44,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:44,508 INFO L225 Difference]: With dead ends: 8428 [2023-12-20 02:55:44,509 INFO L226 Difference]: Without dead ends: 5661 [2023-12-20 02:55:44,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:55:44,515 INFO L413 NwaCegarLoop]: 1912 mSDtfsCounter, 13269 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 2317 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13269 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:44,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13269 Valid, 2581 Invalid, 2390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2317 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 02:55:44,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5661 states. [2023-12-20 02:55:44,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5661 to 5631. [2023-12-20 02:55:44,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5631 states, 5614 states have (on average 1.307445671535447) internal successors, (7340), 5630 states have internal predecessors, (7340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:44,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5631 states to 5631 states and 7340 transitions. [2023-12-20 02:55:44,632 INFO L78 Accepts]: Start accepts. Automaton has 5631 states and 7340 transitions. Word has length 65 [2023-12-20 02:55:44,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:44,632 INFO L495 AbstractCegarLoop]: Abstraction has 5631 states and 7340 transitions. [2023-12-20 02:55:44,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:44,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5631 states and 7340 transitions. [2023-12-20 02:55:44,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-20 02:55:44,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:44,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:44,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 02:55:44,640 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:55:44,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:44,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1512929807, now seen corresponding path program 1 times [2023-12-20 02:55:44,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:44,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835915338] [2023-12-20 02:55:44,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:44,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:44,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:44,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:44,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835915338] [2023-12-20 02:55:44,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835915338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:44,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:44,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:55:44,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117975311] [2023-12-20 02:55:44,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:44,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:55:44,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:44,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:55:44,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:55:44,863 INFO L87 Difference]: Start difference. First operand 5631 states and 7340 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:46,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:46,556 INFO L93 Difference]: Finished difference Result 11308 states and 14760 transitions. [2023-12-20 02:55:46,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:55:46,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-20 02:55:46,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:46,575 INFO L225 Difference]: With dead ends: 11308 [2023-12-20 02:55:46,575 INFO L226 Difference]: Without dead ends: 7078 [2023-12-20 02:55:46,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:55:46,583 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 11557 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11557 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:46,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11557 Valid, 2244 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 02:55:46,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7078 states. [2023-12-20 02:55:46,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7078 to 7058. [2023-12-20 02:55:46,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7058 states, 7041 states have (on average 1.3093310609288453) internal successors, (9219), 7057 states have internal predecessors, (9219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:46,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7058 states to 7058 states and 9219 transitions. [2023-12-20 02:55:46,701 INFO L78 Accepts]: Start accepts. Automaton has 7058 states and 9219 transitions. Word has length 65 [2023-12-20 02:55:46,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:46,703 INFO L495 AbstractCegarLoop]: Abstraction has 7058 states and 9219 transitions. [2023-12-20 02:55:46,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:46,713 INFO L276 IsEmpty]: Start isEmpty. Operand 7058 states and 9219 transitions. [2023-12-20 02:55:46,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-20 02:55:46,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:46,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:46,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 02:55:46,719 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:55:46,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:46,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1700677701, now seen corresponding path program 1 times [2023-12-20 02:55:46,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:46,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227383773] [2023-12-20 02:55:46,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:46,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:46,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:46,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:46,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227383773] [2023-12-20 02:55:46,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227383773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:46,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:46,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:55:46,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400029693] [2023-12-20 02:55:46,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:46,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:55:46,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:46,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:55:46,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:55:46,841 INFO L87 Difference]: Start difference. First operand 7058 states and 9219 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:47,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:47,858 INFO L93 Difference]: Finished difference Result 13776 states and 18168 transitions. [2023-12-20 02:55:47,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:55:47,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-20 02:55:47,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:47,923 INFO L225 Difference]: With dead ends: 13776 [2023-12-20 02:55:47,923 INFO L226 Difference]: Without dead ends: 9202 [2023-12-20 02:55:47,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:55:47,949 INFO L413 NwaCegarLoop]: 1468 mSDtfsCounter, 9715 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9715 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:47,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9715 Valid, 2008 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:55:47,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9202 states. [2023-12-20 02:55:48,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9202 to 9162. [2023-12-20 02:55:48,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9162 states, 9145 states have (on average 1.323127392017496) internal successors, (12100), 9161 states have internal predecessors, (12100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:48,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9162 states to 9162 states and 12100 transitions. [2023-12-20 02:55:48,326 INFO L78 Accepts]: Start accepts. Automaton has 9162 states and 12100 transitions. Word has length 66 [2023-12-20 02:55:48,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:48,326 INFO L495 AbstractCegarLoop]: Abstraction has 9162 states and 12100 transitions. [2023-12-20 02:55:48,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:48,326 INFO L276 IsEmpty]: Start isEmpty. Operand 9162 states and 12100 transitions. [2023-12-20 02:55:48,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-20 02:55:48,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:48,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:48,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 02:55:48,333 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:55:48,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:48,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1596749287, now seen corresponding path program 1 times [2023-12-20 02:55:48,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:48,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550109089] [2023-12-20 02:55:48,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:48,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:48,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:48,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:48,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550109089] [2023-12-20 02:55:48,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550109089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:48,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:48,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:55:48,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059719360] [2023-12-20 02:55:48,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:48,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:55:48,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:48,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:55:48,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:55:48,635 INFO L87 Difference]: Start difference. First operand 9162 states and 12100 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:50,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:50,813 INFO L93 Difference]: Finished difference Result 14405 states and 19713 transitions. [2023-12-20 02:55:50,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:55:50,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-20 02:55:50,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:50,871 INFO L225 Difference]: With dead ends: 14405 [2023-12-20 02:55:50,871 INFO L226 Difference]: Without dead ends: 12871 [2023-12-20 02:55:50,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:55:50,878 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 10453 mSDsluCounter, 3623 mSDsCounter, 0 mSdLazyCounter, 4339 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10453 SdHoareTripleChecker+Valid, 5154 SdHoareTripleChecker+Invalid, 4352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 4339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:50,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10453 Valid, 5154 Invalid, 4352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 4339 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-20 02:55:50,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12871 states. [2023-12-20 02:55:51,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12871 to 9002. [2023-12-20 02:55:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 8985 states have (on average 1.3225375626043405) internal successors, (11883), 9001 states have internal predecessors, (11883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:51,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 11883 transitions. [2023-12-20 02:55:51,149 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 11883 transitions. Word has length 67 [2023-12-20 02:55:51,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:51,150 INFO L495 AbstractCegarLoop]: Abstraction has 9002 states and 11883 transitions. [2023-12-20 02:55:51,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:51,150 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 11883 transitions. [2023-12-20 02:55:51,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-20 02:55:51,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:51,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:51,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 02:55:51,179 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:55:51,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:51,180 INFO L85 PathProgramCache]: Analyzing trace with hash -738498771, now seen corresponding path program 1 times [2023-12-20 02:55:51,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:51,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998626568] [2023-12-20 02:55:51,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:51,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:51,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:51,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:51,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998626568] [2023-12-20 02:55:51,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998626568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:51,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:51,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:55:51,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113228793] [2023-12-20 02:55:51,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:51,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:55:51,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:51,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:55:51,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:55:51,526 INFO L87 Difference]: Start difference. First operand 9002 states and 11883 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:54,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:54,771 INFO L93 Difference]: Finished difference Result 17829 states and 24363 transitions. [2023-12-20 02:55:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:55:54,771 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-20 02:55:54,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:54,792 INFO L225 Difference]: With dead ends: 17829 [2023-12-20 02:55:54,792 INFO L226 Difference]: Without dead ends: 16417 [2023-12-20 02:55:54,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:55:54,796 INFO L413 NwaCegarLoop]: 1676 mSDtfsCounter, 5967 mSDsluCounter, 6136 mSDsCounter, 0 mSdLazyCounter, 7464 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5967 SdHoareTripleChecker+Valid, 7812 SdHoareTripleChecker+Invalid, 7561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 7464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:54,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5967 Valid, 7812 Invalid, 7561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 7464 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-20 02:55:54,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16417 states. [2023-12-20 02:55:54,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16417 to 8940. [2023-12-20 02:55:54,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8940 states, 8923 states have (on average 1.3222010534573574) internal successors, (11798), 8939 states have internal predecessors, (11798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:54,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8940 states to 8940 states and 11798 transitions. [2023-12-20 02:55:54,949 INFO L78 Accepts]: Start accepts. Automaton has 8940 states and 11798 transitions. Word has length 67 [2023-12-20 02:55:54,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:54,950 INFO L495 AbstractCegarLoop]: Abstraction has 8940 states and 11798 transitions. [2023-12-20 02:55:54,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:54,950 INFO L276 IsEmpty]: Start isEmpty. Operand 8940 states and 11798 transitions. [2023-12-20 02:55:54,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-20 02:55:54,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:54,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:54,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 02:55:54,959 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:55:54,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:54,959 INFO L85 PathProgramCache]: Analyzing trace with hash 757912053, now seen corresponding path program 1 times [2023-12-20 02:55:54,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:54,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307790854] [2023-12-20 02:55:54,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:54,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:55,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:55,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307790854] [2023-12-20 02:55:55,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307790854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:55,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:55,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:55:55,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49418698] [2023-12-20 02:55:55,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:55,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:55:55,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:55,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:55:55,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:55:55,568 INFO L87 Difference]: Start difference. First operand 8940 states and 11798 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:56,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:56,926 INFO L93 Difference]: Finished difference Result 16547 states and 23096 transitions. [2023-12-20 02:55:56,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 02:55:56,926 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-20 02:55:56,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:56,948 INFO L225 Difference]: With dead ends: 16547 [2023-12-20 02:55:56,949 INFO L226 Difference]: Without dead ends: 16543 [2023-12-20 02:55:56,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:55:56,955 INFO L413 NwaCegarLoop]: 2738 mSDtfsCounter, 16386 mSDsluCounter, 9991 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16386 SdHoareTripleChecker+Valid, 12729 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:56,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16386 Valid, 12729 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:55:56,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16543 states. [2023-12-20 02:55:57,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16543 to 8936. [2023-12-20 02:55:57,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8936 states, 8920 states have (on average 1.3221973094170403) internal successors, (11794), 8935 states have internal predecessors, (11794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:57,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8936 states to 8936 states and 11794 transitions. [2023-12-20 02:55:57,126 INFO L78 Accepts]: Start accepts. Automaton has 8936 states and 11794 transitions. Word has length 68 [2023-12-20 02:55:57,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:57,127 INFO L495 AbstractCegarLoop]: Abstraction has 8936 states and 11794 transitions. [2023-12-20 02:55:57,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:57,127 INFO L276 IsEmpty]: Start isEmpty. Operand 8936 states and 11794 transitions. [2023-12-20 02:55:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-20 02:55:57,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:57,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:57,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 02:55:57,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:55:57,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:57,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1434028365, now seen corresponding path program 1 times [2023-12-20 02:55:57,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:57,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471492010] [2023-12-20 02:55:57,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:57,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:57,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:57,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:57,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471492010] [2023-12-20 02:55:57,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471492010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:57,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:57,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:55:57,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623037138] [2023-12-20 02:55:57,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:57,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:55:57,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:57,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:55:57,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:55:57,479 INFO L87 Difference]: Start difference. First operand 8936 states and 11794 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:59,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:59,684 INFO L93 Difference]: Finished difference Result 10523 states and 13939 transitions. [2023-12-20 02:55:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:55:59,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-20 02:55:59,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:59,715 INFO L225 Difference]: With dead ends: 10523 [2023-12-20 02:55:59,715 INFO L226 Difference]: Without dead ends: 10517 [2023-12-20 02:55:59,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:55:59,736 INFO L413 NwaCegarLoop]: 1475 mSDtfsCounter, 8303 mSDsluCounter, 5813 mSDsCounter, 0 mSdLazyCounter, 5856 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8303 SdHoareTripleChecker+Valid, 7288 SdHoareTripleChecker+Invalid, 5876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 5856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:59,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8303 Valid, 7288 Invalid, 5876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 5856 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-20 02:55:59,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10517 states. [2023-12-20 02:56:00,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10517 to 8936. [2023-12-20 02:56:00,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8936 states, 8920 states have (on average 1.322085201793722) internal successors, (11793), 8935 states have internal predecessors, (11793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:00,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8936 states to 8936 states and 11793 transitions. [2023-12-20 02:56:00,078 INFO L78 Accepts]: Start accepts. Automaton has 8936 states and 11793 transitions. Word has length 68 [2023-12-20 02:56:00,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:00,079 INFO L495 AbstractCegarLoop]: Abstraction has 8936 states and 11793 transitions. [2023-12-20 02:56:00,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:00,079 INFO L276 IsEmpty]: Start isEmpty. Operand 8936 states and 11793 transitions. [2023-12-20 02:56:00,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-20 02:56:00,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:00,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:00,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 02:56:00,087 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:00,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:00,087 INFO L85 PathProgramCache]: Analyzing trace with hash -896669404, now seen corresponding path program 1 times [2023-12-20 02:56:00,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:00,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620142097] [2023-12-20 02:56:00,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:00,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:00,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:00,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620142097] [2023-12-20 02:56:00,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620142097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:00,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:00,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:56:00,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356344273] [2023-12-20 02:56:00,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:00,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:56:00,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:00,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:56:00,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:56:00,410 INFO L87 Difference]: Start difference. First operand 8936 states and 11793 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:03,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:03,008 INFO L93 Difference]: Finished difference Result 11317 states and 14889 transitions. [2023-12-20 02:56:03,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:56:03,008 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-20 02:56:03,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:03,020 INFO L225 Difference]: With dead ends: 11317 [2023-12-20 02:56:03,020 INFO L226 Difference]: Without dead ends: 11308 [2023-12-20 02:56:03,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:56:03,024 INFO L413 NwaCegarLoop]: 1462 mSDtfsCounter, 8212 mSDsluCounter, 5864 mSDsCounter, 0 mSdLazyCounter, 6375 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8212 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 6421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 6375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:03,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8212 Valid, 7326 Invalid, 6421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 6375 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-20 02:56:03,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11308 states. [2023-12-20 02:56:03,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11308 to 8936. [2023-12-20 02:56:03,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8936 states, 8920 states have (on average 1.3219730941704035) internal successors, (11792), 8935 states have internal predecessors, (11792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:03,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8936 states to 8936 states and 11792 transitions. [2023-12-20 02:56:03,150 INFO L78 Accepts]: Start accepts. Automaton has 8936 states and 11792 transitions. Word has length 68 [2023-12-20 02:56:03,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:03,150 INFO L495 AbstractCegarLoop]: Abstraction has 8936 states and 11792 transitions. [2023-12-20 02:56:03,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:03,151 INFO L276 IsEmpty]: Start isEmpty. Operand 8936 states and 11792 transitions. [2023-12-20 02:56:03,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-20 02:56:03,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:03,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:03,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 02:56:03,159 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:03,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1848914971, now seen corresponding path program 1 times [2023-12-20 02:56:03,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:03,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200839087] [2023-12-20 02:56:03,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:03,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:03,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:03,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:03,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200839087] [2023-12-20 02:56:03,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200839087] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:03,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:03,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:56:03,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237946084] [2023-12-20 02:56:03,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:03,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:56:03,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:03,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:56:03,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:56:03,594 INFO L87 Difference]: Start difference. First operand 8936 states and 11792 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:04,971 INFO L93 Difference]: Finished difference Result 16538 states and 23083 transitions. [2023-12-20 02:56:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 02:56:04,972 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-20 02:56:04,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:04,990 INFO L225 Difference]: With dead ends: 16538 [2023-12-20 02:56:04,990 INFO L226 Difference]: Without dead ends: 16534 [2023-12-20 02:56:04,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2023-12-20 02:56:04,996 INFO L413 NwaCegarLoop]: 2735 mSDtfsCounter, 15995 mSDsluCounter, 13798 mSDsCounter, 0 mSdLazyCounter, 1938 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15995 SdHoareTripleChecker+Valid, 16533 SdHoareTripleChecker+Invalid, 1953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:04,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15995 Valid, 16533 Invalid, 1953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1938 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 02:56:05,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16534 states. [2023-12-20 02:56:05,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16534 to 8932. [2023-12-20 02:56:05,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8932 states, 8917 states have (on average 1.321969272176741) internal successors, (11788), 8931 states have internal predecessors, (11788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:05,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8932 states to 8932 states and 11788 transitions. [2023-12-20 02:56:05,250 INFO L78 Accepts]: Start accepts. Automaton has 8932 states and 11788 transitions. Word has length 68 [2023-12-20 02:56:05,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:05,251 INFO L495 AbstractCegarLoop]: Abstraction has 8932 states and 11788 transitions. [2023-12-20 02:56:05,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:05,251 INFO L276 IsEmpty]: Start isEmpty. Operand 8932 states and 11788 transitions. [2023-12-20 02:56:05,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-20 02:56:05,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:05,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:05,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 02:56:05,257 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:05,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:05,258 INFO L85 PathProgramCache]: Analyzing trace with hash 267145537, now seen corresponding path program 1 times [2023-12-20 02:56:05,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:05,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196709488] [2023-12-20 02:56:05,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:05,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:05,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:05,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:05,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196709488] [2023-12-20 02:56:05,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196709488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:05,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:05,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 02:56:05,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943305827] [2023-12-20 02:56:05,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:05,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 02:56:05,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:05,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 02:56:05,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:56:05,793 INFO L87 Difference]: Start difference. First operand 8932 states and 11788 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:08,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:08,059 INFO L93 Difference]: Finished difference Result 24399 states and 34430 transitions. [2023-12-20 02:56:08,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-20 02:56:08,060 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-20 02:56:08,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:08,088 INFO L225 Difference]: With dead ends: 24399 [2023-12-20 02:56:08,089 INFO L226 Difference]: Without dead ends: 24390 [2023-12-20 02:56:08,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2023-12-20 02:56:08,097 INFO L413 NwaCegarLoop]: 2704 mSDtfsCounter, 21694 mSDsluCounter, 13838 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21694 SdHoareTripleChecker+Valid, 16542 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:08,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21694 Valid, 16542 Invalid, 2343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 02:56:08,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24390 states. [2023-12-20 02:56:08,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24390 to 8923. [2023-12-20 02:56:08,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8923 states, 8909 states have (on average 1.3220338983050848) internal successors, (11778), 8922 states have internal predecessors, (11778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:08,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8923 states to 8923 states and 11778 transitions. [2023-12-20 02:56:08,284 INFO L78 Accepts]: Start accepts. Automaton has 8923 states and 11778 transitions. Word has length 69 [2023-12-20 02:56:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:08,285 INFO L495 AbstractCegarLoop]: Abstraction has 8923 states and 11778 transitions. [2023-12-20 02:56:08,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 8923 states and 11778 transitions. [2023-12-20 02:56:08,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-20 02:56:08,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:08,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:08,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 02:56:08,290 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:08,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:08,291 INFO L85 PathProgramCache]: Analyzing trace with hash 554101842, now seen corresponding path program 1 times [2023-12-20 02:56:08,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:08,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946437462] [2023-12-20 02:56:08,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:08,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:08,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:08,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:08,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946437462] [2023-12-20 02:56:08,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946437462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:08,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:08,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:56:08,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305748816] [2023-12-20 02:56:08,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:08,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:56:08,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:08,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:56:08,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:56:08,670 INFO L87 Difference]: Start difference. First operand 8923 states and 11778 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:10,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:10,286 INFO L93 Difference]: Finished difference Result 20546 states and 28976 transitions. [2023-12-20 02:56:10,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 02:56:10,286 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-20 02:56:10,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:10,307 INFO L225 Difference]: With dead ends: 20546 [2023-12-20 02:56:10,308 INFO L226 Difference]: Without dead ends: 19056 [2023-12-20 02:56:10,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=408, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:56:10,315 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 12077 mSDsluCounter, 11699 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12077 SdHoareTripleChecker+Valid, 14324 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:10,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12077 Valid, 14324 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:56:10,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19056 states. [2023-12-20 02:56:10,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19056 to 8884. [2023-12-20 02:56:10,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8884 states, 8870 states have (on average 1.3226606538895151) internal successors, (11732), 8883 states have internal predecessors, (11732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:10,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8884 states to 8884 states and 11732 transitions. [2023-12-20 02:56:10,537 INFO L78 Accepts]: Start accepts. Automaton has 8884 states and 11732 transitions. Word has length 69 [2023-12-20 02:56:10,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:10,537 INFO L495 AbstractCegarLoop]: Abstraction has 8884 states and 11732 transitions. [2023-12-20 02:56:10,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:10,538 INFO L276 IsEmpty]: Start isEmpty. Operand 8884 states and 11732 transitions. [2023-12-20 02:56:10,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-20 02:56:10,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:10,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:10,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 02:56:10,543 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:10,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:10,544 INFO L85 PathProgramCache]: Analyzing trace with hash -631202535, now seen corresponding path program 1 times [2023-12-20 02:56:10,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:10,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117006627] [2023-12-20 02:56:10,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:10,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:10,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117006627] [2023-12-20 02:56:10,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117006627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:10,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:10,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:10,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572540394] [2023-12-20 02:56:10,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:10,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:10,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:10,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:10,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:10,606 INFO L87 Difference]: Start difference. First operand 8884 states and 11732 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:10,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:10,717 INFO L93 Difference]: Finished difference Result 12827 states and 17252 transitions. [2023-12-20 02:56:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:10,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-20 02:56:10,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:10,726 INFO L225 Difference]: With dead ends: 12827 [2023-12-20 02:56:10,726 INFO L226 Difference]: Without dead ends: 7909 [2023-12-20 02:56:10,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:10,732 INFO L413 NwaCegarLoop]: 1995 mSDtfsCounter, 1971 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:10,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 2674 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:56:10,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7909 states. [2023-12-20 02:56:10,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7909 to 7890. [2023-12-20 02:56:10,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7890 states, 7880 states have (on average 1.340989847715736) internal successors, (10567), 7889 states have internal predecessors, (10567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:10,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7890 states to 7890 states and 10567 transitions. [2023-12-20 02:56:10,812 INFO L78 Accepts]: Start accepts. Automaton has 7890 states and 10567 transitions. Word has length 69 [2023-12-20 02:56:10,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:10,812 INFO L495 AbstractCegarLoop]: Abstraction has 7890 states and 10567 transitions. [2023-12-20 02:56:10,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:10,812 INFO L276 IsEmpty]: Start isEmpty. Operand 7890 states and 10567 transitions. [2023-12-20 02:56:10,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-20 02:56:10,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:10,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:10,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 02:56:10,817 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:10,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:10,817 INFO L85 PathProgramCache]: Analyzing trace with hash 208427501, now seen corresponding path program 1 times [2023-12-20 02:56:10,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:10,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793750946] [2023-12-20 02:56:10,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:10,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:11,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:11,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:11,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793750946] [2023-12-20 02:56:11,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793750946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:11,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:11,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:56:11,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824121843] [2023-12-20 02:56:11,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:11,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:56:11,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:11,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:56:11,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:56:11,050 INFO L87 Difference]: Start difference. First operand 7890 states and 10567 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:13,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:13,013 INFO L93 Difference]: Finished difference Result 15342 states and 21386 transitions. [2023-12-20 02:56:13,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:56:13,013 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-20 02:56:13,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:13,027 INFO L225 Difference]: With dead ends: 15342 [2023-12-20 02:56:13,027 INFO L226 Difference]: Without dead ends: 13334 [2023-12-20 02:56:13,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:56:13,033 INFO L413 NwaCegarLoop]: 1173 mSDtfsCounter, 5412 mSDsluCounter, 3793 mSDsCounter, 0 mSdLazyCounter, 4306 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5412 SdHoareTripleChecker+Valid, 4966 SdHoareTripleChecker+Invalid, 4352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 4306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:13,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5412 Valid, 4966 Invalid, 4352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 4306 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 02:56:13,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13334 states. [2023-12-20 02:56:13,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13334 to 7890. [2023-12-20 02:56:13,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7890 states, 7880 states have (on average 1.3408629441624365) internal successors, (10566), 7889 states have internal predecessors, (10566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:13,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7890 states to 7890 states and 10566 transitions. [2023-12-20 02:56:13,144 INFO L78 Accepts]: Start accepts. Automaton has 7890 states and 10566 transitions. Word has length 70 [2023-12-20 02:56:13,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:13,144 INFO L495 AbstractCegarLoop]: Abstraction has 7890 states and 10566 transitions. [2023-12-20 02:56:13,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:13,145 INFO L276 IsEmpty]: Start isEmpty. Operand 7890 states and 10566 transitions. [2023-12-20 02:56:13,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-20 02:56:13,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:13,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:13,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 02:56:13,149 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:13,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:13,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1665056200, now seen corresponding path program 1 times [2023-12-20 02:56:13,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:13,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576667638] [2023-12-20 02:56:13,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:13,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:13,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:13,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576667638] [2023-12-20 02:56:13,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576667638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:13,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:13,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:56:13,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882871979] [2023-12-20 02:56:13,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:13,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:56:13,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:13,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:56:13,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:56:13,356 INFO L87 Difference]: Start difference. First operand 7890 states and 10566 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:15,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:15,134 INFO L93 Difference]: Finished difference Result 19262 states and 26934 transitions. [2023-12-20 02:56:15,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:56:15,136 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-20 02:56:15,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:15,157 INFO L225 Difference]: With dead ends: 19262 [2023-12-20 02:56:15,157 INFO L226 Difference]: Without dead ends: 17185 [2023-12-20 02:56:15,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:56:15,166 INFO L413 NwaCegarLoop]: 1341 mSDtfsCounter, 4688 mSDsluCounter, 4900 mSDsCounter, 0 mSdLazyCounter, 5764 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4688 SdHoareTripleChecker+Valid, 6241 SdHoareTripleChecker+Invalid, 5843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 5764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:15,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4688 Valid, 6241 Invalid, 5843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 5764 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 02:56:15,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17185 states. [2023-12-20 02:56:15,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17185 to 7890. [2023-12-20 02:56:15,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7890 states, 7880 states have (on average 1.340736040609137) internal successors, (10565), 7889 states have internal predecessors, (10565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7890 states to 7890 states and 10565 transitions. [2023-12-20 02:56:15,315 INFO L78 Accepts]: Start accepts. Automaton has 7890 states and 10565 transitions. Word has length 70 [2023-12-20 02:56:15,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:15,316 INFO L495 AbstractCegarLoop]: Abstraction has 7890 states and 10565 transitions. [2023-12-20 02:56:15,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:15,316 INFO L276 IsEmpty]: Start isEmpty. Operand 7890 states and 10565 transitions. [2023-12-20 02:56:15,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-20 02:56:15,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:15,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:15,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 02:56:15,321 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:15,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:15,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1937924781, now seen corresponding path program 1 times [2023-12-20 02:56:15,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:15,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90132966] [2023-12-20 02:56:15,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:15,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:15,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:15,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90132966] [2023-12-20 02:56:15,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90132966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:15,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:15,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:56:15,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223319402] [2023-12-20 02:56:15,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:15,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:56:15,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:15,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:56:15,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:56:15,619 INFO L87 Difference]: Start difference. First operand 7890 states and 10565 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:17,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:17,166 INFO L93 Difference]: Finished difference Result 14890 states and 20873 transitions. [2023-12-20 02:56:17,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:56:17,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-20 02:56:17,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:17,180 INFO L225 Difference]: With dead ends: 14890 [2023-12-20 02:56:17,180 INFO L226 Difference]: Without dead ends: 12469 [2023-12-20 02:56:17,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:56:17,187 INFO L413 NwaCegarLoop]: 1180 mSDtfsCounter, 7979 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 3051 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7979 SdHoareTripleChecker+Valid, 3741 SdHoareTripleChecker+Invalid, 3060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:17,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7979 Valid, 3741 Invalid, 3060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3051 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 02:56:17,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12469 states. [2023-12-20 02:56:17,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12469 to 7890. [2023-12-20 02:56:17,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7890 states, 7880 states have (on average 1.3406091370558375) internal successors, (10564), 7889 states have internal predecessors, (10564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:17,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7890 states to 7890 states and 10564 transitions. [2023-12-20 02:56:17,292 INFO L78 Accepts]: Start accepts. Automaton has 7890 states and 10564 transitions. Word has length 70 [2023-12-20 02:56:17,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:17,292 INFO L495 AbstractCegarLoop]: Abstraction has 7890 states and 10564 transitions. [2023-12-20 02:56:17,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:17,292 INFO L276 IsEmpty]: Start isEmpty. Operand 7890 states and 10564 transitions. [2023-12-20 02:56:17,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-20 02:56:17,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:17,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:17,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 02:56:17,297 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:17,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:17,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1770122057, now seen corresponding path program 1 times [2023-12-20 02:56:17,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:17,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661925324] [2023-12-20 02:56:17,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:17,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:17,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:17,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661925324] [2023-12-20 02:56:17,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661925324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:17,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:17,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:17,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904332771] [2023-12-20 02:56:17,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:17,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:17,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:17,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:17,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:17,356 INFO L87 Difference]: Start difference. First operand 7890 states and 10564 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:17,487 INFO L93 Difference]: Finished difference Result 12672 states and 17286 transitions. [2023-12-20 02:56:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:17,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-20 02:56:17,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:17,496 INFO L225 Difference]: With dead ends: 12672 [2023-12-20 02:56:17,496 INFO L226 Difference]: Without dead ends: 7576 [2023-12-20 02:56:17,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:17,502 INFO L413 NwaCegarLoop]: 1588 mSDtfsCounter, 1566 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:17,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 2121 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:56:17,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2023-12-20 02:56:17,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 7568. [2023-12-20 02:56:17,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7568 states, 7561 states have (on average 1.3615923819600582) internal successors, (10295), 7567 states have internal predecessors, (10295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:17,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7568 states to 7568 states and 10295 transitions. [2023-12-20 02:56:17,578 INFO L78 Accepts]: Start accepts. Automaton has 7568 states and 10295 transitions. Word has length 70 [2023-12-20 02:56:17,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:17,579 INFO L495 AbstractCegarLoop]: Abstraction has 7568 states and 10295 transitions. [2023-12-20 02:56:17,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:17,579 INFO L276 IsEmpty]: Start isEmpty. Operand 7568 states and 10295 transitions. [2023-12-20 02:56:17,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 02:56:17,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:17,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:17,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 02:56:17,583 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:17,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:17,584 INFO L85 PathProgramCache]: Analyzing trace with hash 546797367, now seen corresponding path program 1 times [2023-12-20 02:56:17,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:17,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951676543] [2023-12-20 02:56:17,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:17,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:17,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:17,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:17,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951676543] [2023-12-20 02:56:17,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951676543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:17,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:17,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:17,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320339642] [2023-12-20 02:56:17,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:17,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:17,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:17,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:17,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:17,650 INFO L87 Difference]: Start difference. First operand 7568 states and 10295 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:17,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:17,743 INFO L93 Difference]: Finished difference Result 15599 states and 21769 transitions. [2023-12-20 02:56:17,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:17,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-20 02:56:17,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:17,756 INFO L225 Difference]: With dead ends: 15599 [2023-12-20 02:56:17,757 INFO L226 Difference]: Without dead ends: 11659 [2023-12-20 02:56:17,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:17,763 INFO L413 NwaCegarLoop]: 1762 mSDtfsCounter, 1019 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:17,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 3065 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:56:17,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11659 states. [2023-12-20 02:56:17,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11659 to 11651. [2023-12-20 02:56:17,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11651 states, 11644 states have (on average 1.3708347646856751) internal successors, (15962), 11650 states have internal predecessors, (15962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:17,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11651 states to 11651 states and 15962 transitions. [2023-12-20 02:56:17,884 INFO L78 Accepts]: Start accepts. Automaton has 11651 states and 15962 transitions. Word has length 71 [2023-12-20 02:56:17,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:17,884 INFO L495 AbstractCegarLoop]: Abstraction has 11651 states and 15962 transitions. [2023-12-20 02:56:17,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:17,884 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states and 15962 transitions. [2023-12-20 02:56:17,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 02:56:17,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:17,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:17,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 02:56:17,889 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:17,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:17,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1939459057, now seen corresponding path program 1 times [2023-12-20 02:56:17,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:17,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933333406] [2023-12-20 02:56:17,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:17,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:17,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:17,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933333406] [2023-12-20 02:56:17,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933333406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:17,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:17,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:17,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711547720] [2023-12-20 02:56:17,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:17,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:17,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:17,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:17,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:17,959 INFO L87 Difference]: Start difference. First operand 11651 states and 15962 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:18,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:18,041 INFO L93 Difference]: Finished difference Result 20177 states and 28755 transitions. [2023-12-20 02:56:18,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:18,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-20 02:56:18,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:18,056 INFO L225 Difference]: With dead ends: 20177 [2023-12-20 02:56:18,057 INFO L226 Difference]: Without dead ends: 13752 [2023-12-20 02:56:18,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:18,066 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 1031 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:18,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 2346 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:56:18,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13752 states. [2023-12-20 02:56:18,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13752 to 11042. [2023-12-20 02:56:18,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11042 states, 11035 states have (on average 1.3968282736746715) internal successors, (15414), 11041 states have internal predecessors, (15414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:18,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11042 states to 11042 states and 15414 transitions. [2023-12-20 02:56:18,188 INFO L78 Accepts]: Start accepts. Automaton has 11042 states and 15414 transitions. Word has length 71 [2023-12-20 02:56:18,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:18,189 INFO L495 AbstractCegarLoop]: Abstraction has 11042 states and 15414 transitions. [2023-12-20 02:56:18,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:18,189 INFO L276 IsEmpty]: Start isEmpty. Operand 11042 states and 15414 transitions. [2023-12-20 02:56:18,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 02:56:18,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:18,192 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] [2023-12-20 02:56:18,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 02:56:18,192 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:18,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:18,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1009351057, now seen corresponding path program 1 times [2023-12-20 02:56:18,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:18,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51850353] [2023-12-20 02:56:18,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:18,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:18,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:18,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:18,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51850353] [2023-12-20 02:56:18,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51850353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:18,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:18,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:18,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908844679] [2023-12-20 02:56:18,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:18,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:18,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:18,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:18,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:18,255 INFO L87 Difference]: Start difference. First operand 11042 states and 15414 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:18,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:18,404 INFO L93 Difference]: Finished difference Result 25782 states and 36687 transitions. [2023-12-20 02:56:18,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:18,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-20 02:56:18,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:18,423 INFO L225 Difference]: With dead ends: 25782 [2023-12-20 02:56:18,423 INFO L226 Difference]: Without dead ends: 17666 [2023-12-20 02:56:18,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:18,434 INFO L413 NwaCegarLoop]: 1831 mSDtfsCounter, 903 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:18,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 3089 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:56:18,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17666 states. [2023-12-20 02:56:18,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17666 to 17658. [2023-12-20 02:56:18,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17658 states, 17651 states have (on average 1.3949917851679792) internal successors, (24623), 17657 states have internal predecessors, (24623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:18,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17658 states to 17658 states and 24623 transitions. [2023-12-20 02:56:18,620 INFO L78 Accepts]: Start accepts. Automaton has 17658 states and 24623 transitions. Word has length 71 [2023-12-20 02:56:18,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:18,620 INFO L495 AbstractCegarLoop]: Abstraction has 17658 states and 24623 transitions. [2023-12-20 02:56:18,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:18,620 INFO L276 IsEmpty]: Start isEmpty. Operand 17658 states and 24623 transitions. [2023-12-20 02:56:18,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-20 02:56:18,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:18,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:18,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 02:56:18,625 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:18,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:18,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1569860402, now seen corresponding path program 1 times [2023-12-20 02:56:18,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:18,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395706901] [2023-12-20 02:56:18,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:18,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:18,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:18,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:18,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395706901] [2023-12-20 02:56:18,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395706901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:18,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:18,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:18,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760564394] [2023-12-20 02:56:18,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:18,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:18,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:18,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:18,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:18,689 INFO L87 Difference]: Start difference. First operand 17658 states and 24623 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:18,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:18,882 INFO L93 Difference]: Finished difference Result 35020 states and 49544 transitions. [2023-12-20 02:56:18,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:18,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-20 02:56:18,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:18,904 INFO L225 Difference]: With dead ends: 35020 [2023-12-20 02:56:18,904 INFO L226 Difference]: Without dead ends: 19242 [2023-12-20 02:56:18,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:18,919 INFO L413 NwaCegarLoop]: 1544 mSDtfsCounter, 1291 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 2144 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:18,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 2144 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:56:18,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19242 states. [2023-12-20 02:56:19,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19242 to 15400. [2023-12-20 02:56:19,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15400 states, 15393 states have (on average 1.4135646072890276) internal successors, (21759), 15399 states have internal predecessors, (21759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:19,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15400 states to 15400 states and 21759 transitions. [2023-12-20 02:56:19,097 INFO L78 Accepts]: Start accepts. Automaton has 15400 states and 21759 transitions. Word has length 72 [2023-12-20 02:56:19,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:19,098 INFO L495 AbstractCegarLoop]: Abstraction has 15400 states and 21759 transitions. [2023-12-20 02:56:19,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:19,098 INFO L276 IsEmpty]: Start isEmpty. Operand 15400 states and 21759 transitions. [2023-12-20 02:56:19,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-20 02:56:19,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:19,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:19,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 02:56:19,101 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:19,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:19,101 INFO L85 PathProgramCache]: Analyzing trace with hash -620993132, now seen corresponding path program 1 times [2023-12-20 02:56:19,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:19,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187120806] [2023-12-20 02:56:19,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:19,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:19,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:19,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187120806] [2023-12-20 02:56:19,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187120806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:19,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:19,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:56:19,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204136715] [2023-12-20 02:56:19,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:19,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:56:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:56:19,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:56:19,535 INFO L87 Difference]: Start difference. First operand 15400 states and 21759 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:21,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:21,053 INFO L93 Difference]: Finished difference Result 23046 states and 32560 transitions. [2023-12-20 02:56:21,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:56:21,055 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-20 02:56:21,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:21,080 INFO L225 Difference]: With dead ends: 23046 [2023-12-20 02:56:21,080 INFO L226 Difference]: Without dead ends: 22836 [2023-12-20 02:56:21,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:56:21,088 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 4795 mSDsluCounter, 3689 mSDsCounter, 0 mSdLazyCounter, 3331 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 4594 SdHoareTripleChecker+Invalid, 3346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:21,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 4594 Invalid, 3346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3331 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 02:56:21,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22836 states. [2023-12-20 02:56:21,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22836 to 15395. [2023-12-20 02:56:21,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15395 states, 15388 states have (on average 1.4134390434104498) internal successors, (21750), 15394 states have internal predecessors, (21750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:21,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15395 states to 15395 states and 21750 transitions. [2023-12-20 02:56:21,278 INFO L78 Accepts]: Start accepts. Automaton has 15395 states and 21750 transitions. Word has length 72 [2023-12-20 02:56:21,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:21,278 INFO L495 AbstractCegarLoop]: Abstraction has 15395 states and 21750 transitions. [2023-12-20 02:56:21,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:21,279 INFO L276 IsEmpty]: Start isEmpty. Operand 15395 states and 21750 transitions. [2023-12-20 02:56:21,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-20 02:56:21,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:21,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:21,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 02:56:21,281 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:21,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:21,282 INFO L85 PathProgramCache]: Analyzing trace with hash -789977138, now seen corresponding path program 1 times [2023-12-20 02:56:21,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:21,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684639621] [2023-12-20 02:56:21,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:21,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:21,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:21,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:21,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684639621] [2023-12-20 02:56:21,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684639621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:21,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:21,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:21,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478140715] [2023-12-20 02:56:21,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:21,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:21,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:21,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:21,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:21,342 INFO L87 Difference]: Start difference. First operand 15395 states and 21750 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:21,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:21,470 INFO L93 Difference]: Finished difference Result 31577 states and 45215 transitions. [2023-12-20 02:56:21,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:21,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-20 02:56:21,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:21,490 INFO L225 Difference]: With dead ends: 31577 [2023-12-20 02:56:21,491 INFO L226 Difference]: Without dead ends: 17504 [2023-12-20 02:56:21,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:21,504 INFO L413 NwaCegarLoop]: 1405 mSDtfsCounter, 1310 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:21,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 1913 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:56:21,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17504 states. [2023-12-20 02:56:21,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17504 to 14075. [2023-12-20 02:56:21,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14075 states, 14068 states have (on average 1.428419107193631) internal successors, (20095), 14074 states have internal predecessors, (20095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:21,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14075 states to 14075 states and 20095 transitions. [2023-12-20 02:56:21,676 INFO L78 Accepts]: Start accepts. Automaton has 14075 states and 20095 transitions. Word has length 72 [2023-12-20 02:56:21,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:21,676 INFO L495 AbstractCegarLoop]: Abstraction has 14075 states and 20095 transitions. [2023-12-20 02:56:21,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:21,676 INFO L276 IsEmpty]: Start isEmpty. Operand 14075 states and 20095 transitions. [2023-12-20 02:56:21,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:56:21,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:21,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:21,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 02:56:21,679 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:21,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:21,679 INFO L85 PathProgramCache]: Analyzing trace with hash -104672906, now seen corresponding path program 1 times [2023-12-20 02:56:21,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:21,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705878696] [2023-12-20 02:56:21,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:21,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:21,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:21,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:21,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705878696] [2023-12-20 02:56:21,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705878696] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:21,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:21,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:56:21,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539610082] [2023-12-20 02:56:21,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:21,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:56:21,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:21,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:56:21,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:56:21,888 INFO L87 Difference]: Start difference. First operand 14075 states and 20095 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:22,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:22,967 INFO L93 Difference]: Finished difference Result 26880 states and 38272 transitions. [2023-12-20 02:56:22,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:56:22,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-20 02:56:22,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:23,000 INFO L225 Difference]: With dead ends: 26880 [2023-12-20 02:56:23,000 INFO L226 Difference]: Without dead ends: 26590 [2023-12-20 02:56:23,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:56:23,011 INFO L413 NwaCegarLoop]: 1172 mSDtfsCounter, 4448 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 3390 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4448 SdHoareTripleChecker+Valid, 4415 SdHoareTripleChecker+Invalid, 3426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 3390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:23,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4448 Valid, 4415 Invalid, 3426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 3390 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:56:23,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26590 states. [2023-12-20 02:56:23,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26590 to 14075. [2023-12-20 02:56:23,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14075 states, 14068 states have (on average 1.428348023883992) internal successors, (20094), 14074 states have internal predecessors, (20094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14075 states to 14075 states and 20094 transitions. [2023-12-20 02:56:23,222 INFO L78 Accepts]: Start accepts. Automaton has 14075 states and 20094 transitions. Word has length 73 [2023-12-20 02:56:23,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:23,222 INFO L495 AbstractCegarLoop]: Abstraction has 14075 states and 20094 transitions. [2023-12-20 02:56:23,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:23,223 INFO L276 IsEmpty]: Start isEmpty. Operand 14075 states and 20094 transitions. [2023-12-20 02:56:23,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:56:23,225 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:23,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:23,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 02:56:23,225 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:23,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:23,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1330912566, now seen corresponding path program 1 times [2023-12-20 02:56:23,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:23,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975143661] [2023-12-20 02:56:23,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:23,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:23,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:23,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:23,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975143661] [2023-12-20 02:56:23,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975143661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:23,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:23,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:56:23,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015397101] [2023-12-20 02:56:23,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:23,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:56:23,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:23,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:56:23,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:56:23,484 INFO L87 Difference]: Start difference. First operand 14075 states and 20094 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:25,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:25,073 INFO L93 Difference]: Finished difference Result 21305 states and 30376 transitions. [2023-12-20 02:56:25,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:56:25,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-20 02:56:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:25,097 INFO L225 Difference]: With dead ends: 21305 [2023-12-20 02:56:25,097 INFO L226 Difference]: Without dead ends: 21094 [2023-12-20 02:56:25,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:56:25,105 INFO L413 NwaCegarLoop]: 882 mSDtfsCounter, 4582 mSDsluCounter, 3550 mSDsCounter, 0 mSdLazyCounter, 3199 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4582 SdHoareTripleChecker+Valid, 4432 SdHoareTripleChecker+Invalid, 3214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:25,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4582 Valid, 4432 Invalid, 3214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3199 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 02:56:25,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21094 states. [2023-12-20 02:56:25,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21094 to 14075. [2023-12-20 02:56:25,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14075 states, 14068 states have (on average 1.4282769405743532) internal successors, (20093), 14074 states have internal predecessors, (20093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:25,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14075 states to 14075 states and 20093 transitions. [2023-12-20 02:56:25,282 INFO L78 Accepts]: Start accepts. Automaton has 14075 states and 20093 transitions. Word has length 73 [2023-12-20 02:56:25,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:25,282 INFO L495 AbstractCegarLoop]: Abstraction has 14075 states and 20093 transitions. [2023-12-20 02:56:25,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:25,282 INFO L276 IsEmpty]: Start isEmpty. Operand 14075 states and 20093 transitions. [2023-12-20 02:56:25,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:56:25,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:25,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:25,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 02:56:25,285 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:25,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:25,285 INFO L85 PathProgramCache]: Analyzing trace with hash -24596204, now seen corresponding path program 1 times [2023-12-20 02:56:25,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:25,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991882105] [2023-12-20 02:56:25,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:25,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:25,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:25,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:25,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991882105] [2023-12-20 02:56:25,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991882105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:25,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:25,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:56:25,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707459056] [2023-12-20 02:56:25,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:25,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:56:25,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:25,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:56:25,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:56:25,467 INFO L87 Difference]: Start difference. First operand 14075 states and 20093 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:26,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:26,881 INFO L93 Difference]: Finished difference Result 18455 states and 26164 transitions. [2023-12-20 02:56:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:56:26,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-20 02:56:26,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:26,902 INFO L225 Difference]: With dead ends: 18455 [2023-12-20 02:56:26,902 INFO L226 Difference]: Without dead ends: 18222 [2023-12-20 02:56:26,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:56:26,909 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 5205 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5205 SdHoareTripleChecker+Valid, 3889 SdHoareTripleChecker+Invalid, 2982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:26,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5205 Valid, 3889 Invalid, 2982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:56:26,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18222 states. [2023-12-20 02:56:27,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18222 to 14075. [2023-12-20 02:56:27,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14075 states, 14068 states have (on average 1.4282058572647143) internal successors, (20092), 14074 states have internal predecessors, (20092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:27,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14075 states to 14075 states and 20092 transitions. [2023-12-20 02:56:27,083 INFO L78 Accepts]: Start accepts. Automaton has 14075 states and 20092 transitions. Word has length 73 [2023-12-20 02:56:27,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:27,084 INFO L495 AbstractCegarLoop]: Abstraction has 14075 states and 20092 transitions. [2023-12-20 02:56:27,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:27,084 INFO L276 IsEmpty]: Start isEmpty. Operand 14075 states and 20092 transitions. [2023-12-20 02:56:27,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:56:27,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:27,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:27,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 02:56:27,086 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:27,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:27,086 INFO L85 PathProgramCache]: Analyzing trace with hash -355580974, now seen corresponding path program 1 times [2023-12-20 02:56:27,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:27,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313723753] [2023-12-20 02:56:27,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:27,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:27,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:27,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:27,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313723753] [2023-12-20 02:56:27,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313723753] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:27,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:27,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:56:27,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524885614] [2023-12-20 02:56:27,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:27,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:56:27,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:27,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:56:27,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:56:27,268 INFO L87 Difference]: Start difference. First operand 14075 states and 20092 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:28,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:28,369 INFO L93 Difference]: Finished difference Result 18455 states and 26163 transitions. [2023-12-20 02:56:28,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:56:28,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-20 02:56:28,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:28,388 INFO L225 Difference]: With dead ends: 18455 [2023-12-20 02:56:28,389 INFO L226 Difference]: Without dead ends: 18222 [2023-12-20 02:56:28,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:56:28,395 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 5195 mSDsluCounter, 2970 mSDsCounter, 0 mSdLazyCounter, 3035 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5195 SdHoareTripleChecker+Valid, 3949 SdHoareTripleChecker+Invalid, 3053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:28,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5195 Valid, 3949 Invalid, 3053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3035 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:56:28,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18222 states. [2023-12-20 02:56:28,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18222 to 14075. [2023-12-20 02:56:28,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14075 states, 14068 states have (on average 1.4281347739550754) internal successors, (20091), 14074 states have internal predecessors, (20091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:28,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14075 states to 14075 states and 20091 transitions. [2023-12-20 02:56:28,555 INFO L78 Accepts]: Start accepts. Automaton has 14075 states and 20091 transitions. Word has length 73 [2023-12-20 02:56:28,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:28,556 INFO L495 AbstractCegarLoop]: Abstraction has 14075 states and 20091 transitions. [2023-12-20 02:56:28,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:28,556 INFO L276 IsEmpty]: Start isEmpty. Operand 14075 states and 20091 transitions. [2023-12-20 02:56:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:56:28,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:28,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:28,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 02:56:28,558 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:28,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:28,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1699162345, now seen corresponding path program 1 times [2023-12-20 02:56:28,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:28,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075242149] [2023-12-20 02:56:28,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:28,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:28,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:28,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:28,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075242149] [2023-12-20 02:56:28,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075242149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:28,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:28,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:56:28,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89834975] [2023-12-20 02:56:28,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:28,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:56:28,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:28,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:56:28,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:56:28,759 INFO L87 Difference]: Start difference. First operand 14075 states and 20091 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:30,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:30,316 INFO L93 Difference]: Finished difference Result 21305 states and 30373 transitions. [2023-12-20 02:56:30,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:56:30,316 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-20 02:56:30,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:30,340 INFO L225 Difference]: With dead ends: 21305 [2023-12-20 02:56:30,340 INFO L226 Difference]: Without dead ends: 21094 [2023-12-20 02:56:30,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:56:30,347 INFO L413 NwaCegarLoop]: 941 mSDtfsCounter, 4567 mSDsluCounter, 3680 mSDsCounter, 0 mSdLazyCounter, 3248 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4567 SdHoareTripleChecker+Valid, 4621 SdHoareTripleChecker+Invalid, 3263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:30,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4567 Valid, 4621 Invalid, 3263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3248 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 02:56:30,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21094 states. [2023-12-20 02:56:30,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21094 to 14075. [2023-12-20 02:56:30,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14075 states, 14068 states have (on average 1.4280636906454365) internal successors, (20090), 14074 states have internal predecessors, (20090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:30,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14075 states to 14075 states and 20090 transitions. [2023-12-20 02:56:30,526 INFO L78 Accepts]: Start accepts. Automaton has 14075 states and 20090 transitions. Word has length 73 [2023-12-20 02:56:30,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:30,526 INFO L495 AbstractCegarLoop]: Abstraction has 14075 states and 20090 transitions. [2023-12-20 02:56:30,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:30,526 INFO L276 IsEmpty]: Start isEmpty. Operand 14075 states and 20090 transitions. [2023-12-20 02:56:30,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:56:30,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:30,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:30,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 02:56:30,529 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:30,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:30,529 INFO L85 PathProgramCache]: Analyzing trace with hash 683575830, now seen corresponding path program 1 times [2023-12-20 02:56:30,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:30,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846995580] [2023-12-20 02:56:30,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:30,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:30,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:30,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:30,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846995580] [2023-12-20 02:56:30,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846995580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:30,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:30,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:56:30,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821211496] [2023-12-20 02:56:30,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:30,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:56:30,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:30,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:56:30,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:56:30,707 INFO L87 Difference]: Start difference. First operand 14075 states and 20090 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:32,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:32,069 INFO L93 Difference]: Finished difference Result 18441 states and 26164 transitions. [2023-12-20 02:56:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:56:32,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-20 02:56:32,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:32,088 INFO L225 Difference]: With dead ends: 18441 [2023-12-20 02:56:32,089 INFO L226 Difference]: Without dead ends: 18230 [2023-12-20 02:56:32,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:56:32,095 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 5414 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 2865 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5414 SdHoareTripleChecker+Valid, 3907 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:32,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5414 Valid, 3907 Invalid, 2881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2865 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:56:32,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18230 states. [2023-12-20 02:56:32,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18230 to 14075. [2023-12-20 02:56:32,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14075 states, 14068 states have (on average 1.4279926073357976) internal successors, (20089), 14074 states have internal predecessors, (20089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:32,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14075 states to 14075 states and 20089 transitions. [2023-12-20 02:56:32,255 INFO L78 Accepts]: Start accepts. Automaton has 14075 states and 20089 transitions. Word has length 73 [2023-12-20 02:56:32,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:32,256 INFO L495 AbstractCegarLoop]: Abstraction has 14075 states and 20089 transitions. [2023-12-20 02:56:32,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:32,256 INFO L276 IsEmpty]: Start isEmpty. Operand 14075 states and 20089 transitions. [2023-12-20 02:56:32,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-20 02:56:32,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:32,258 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] [2023-12-20 02:56:32,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 02:56:32,258 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:32,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:32,258 INFO L85 PathProgramCache]: Analyzing trace with hash -754020984, now seen corresponding path program 1 times [2023-12-20 02:56:32,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:32,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986469491] [2023-12-20 02:56:32,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:32,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:32,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:32,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986469491] [2023-12-20 02:56:32,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986469491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:32,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:32,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:32,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023243075] [2023-12-20 02:56:32,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:32,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:32,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:32,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:32,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:32,317 INFO L87 Difference]: Start difference. First operand 14075 states and 20089 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:32,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:32,431 INFO L93 Difference]: Finished difference Result 32741 states and 47422 transitions. [2023-12-20 02:56:32,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:32,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-20 02:56:32,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:32,453 INFO L225 Difference]: With dead ends: 32741 [2023-12-20 02:56:32,453 INFO L226 Difference]: Without dead ends: 20416 [2023-12-20 02:56:32,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:32,465 INFO L413 NwaCegarLoop]: 1413 mSDtfsCounter, 858 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:32,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 1999 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:56:32,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20416 states. [2023-12-20 02:56:32,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20416 to 16402. [2023-12-20 02:56:32,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16402 states, 16395 states have (on average 1.422201890820372) internal successors, (23317), 16401 states have internal predecessors, (23317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:32,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16402 states to 16402 states and 23317 transitions. [2023-12-20 02:56:32,648 INFO L78 Accepts]: Start accepts. Automaton has 16402 states and 23317 transitions. Word has length 74 [2023-12-20 02:56:32,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:32,648 INFO L495 AbstractCegarLoop]: Abstraction has 16402 states and 23317 transitions. [2023-12-20 02:56:32,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:32,648 INFO L276 IsEmpty]: Start isEmpty. Operand 16402 states and 23317 transitions. [2023-12-20 02:56:32,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 02:56:32,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:32,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:32,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 02:56:32,651 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:32,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:32,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1506470067, now seen corresponding path program 1 times [2023-12-20 02:56:32,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:32,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132012635] [2023-12-20 02:56:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:32,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:33,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:33,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132012635] [2023-12-20 02:56:33,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132012635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:33,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:33,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:56:33,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564836999] [2023-12-20 02:56:33,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:33,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:56:33,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:33,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:56:33,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:56:33,060 INFO L87 Difference]: Start difference. First operand 16402 states and 23317 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:34,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:34,024 INFO L93 Difference]: Finished difference Result 28104 states and 40018 transitions. [2023-12-20 02:56:34,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:56:34,025 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-20 02:56:34,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:34,059 INFO L225 Difference]: With dead ends: 28104 [2023-12-20 02:56:34,059 INFO L226 Difference]: Without dead ends: 28034 [2023-12-20 02:56:34,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:56:34,069 INFO L413 NwaCegarLoop]: 1453 mSDtfsCounter, 8290 mSDsluCounter, 6502 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8290 SdHoareTripleChecker+Valid, 7955 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:34,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8290 Valid, 7955 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:56:34,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28034 states. [2023-12-20 02:56:34,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28034 to 16398. [2023-12-20 02:56:34,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16398 states, 16392 states have (on average 1.422157149829185) internal successors, (23312), 16397 states have internal predecessors, (23312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:34,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16398 states to 16398 states and 23312 transitions. [2023-12-20 02:56:34,301 INFO L78 Accepts]: Start accepts. Automaton has 16398 states and 23312 transitions. Word has length 76 [2023-12-20 02:56:34,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:34,301 INFO L495 AbstractCegarLoop]: Abstraction has 16398 states and 23312 transitions. [2023-12-20 02:56:34,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:34,302 INFO L276 IsEmpty]: Start isEmpty. Operand 16398 states and 23312 transitions. [2023-12-20 02:56:34,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 02:56:34,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:34,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:34,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 02:56:34,304 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:34,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:34,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1520723396, now seen corresponding path program 1 times [2023-12-20 02:56:34,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:34,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530377100] [2023-12-20 02:56:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:34,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:34,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:34,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:34,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530377100] [2023-12-20 02:56:34,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530377100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:34,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:34,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:56:34,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991228311] [2023-12-20 02:56:34,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:34,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:56:34,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:34,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:56:34,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:56:34,758 INFO L87 Difference]: Start difference. First operand 16398 states and 23312 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:35,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:35,764 INFO L93 Difference]: Finished difference Result 28102 states and 40015 transitions. [2023-12-20 02:56:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:56:35,764 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-20 02:56:35,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:35,799 INFO L225 Difference]: With dead ends: 28102 [2023-12-20 02:56:35,800 INFO L226 Difference]: Without dead ends: 28032 [2023-12-20 02:56:35,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:56:35,811 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 7031 mSDsluCounter, 7619 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7031 SdHoareTripleChecker+Valid, 9229 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:35,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7031 Valid, 9229 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:56:35,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28032 states. [2023-12-20 02:56:36,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28032 to 16394. [2023-12-20 02:56:36,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16394 states, 16389 states have (on average 1.4221123924583563) internal successors, (23307), 16393 states have internal predecessors, (23307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:36,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16394 states to 16394 states and 23307 transitions. [2023-12-20 02:56:36,038 INFO L78 Accepts]: Start accepts. Automaton has 16394 states and 23307 transitions. Word has length 76 [2023-12-20 02:56:36,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:36,039 INFO L495 AbstractCegarLoop]: Abstraction has 16394 states and 23307 transitions. [2023-12-20 02:56:36,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:36,039 INFO L276 IsEmpty]: Start isEmpty. Operand 16394 states and 23307 transitions. [2023-12-20 02:56:36,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 02:56:36,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:36,041 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] [2023-12-20 02:56:36,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 02:56:36,041 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:36,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:36,042 INFO L85 PathProgramCache]: Analyzing trace with hash -256912275, now seen corresponding path program 1 times [2023-12-20 02:56:36,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:36,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799667563] [2023-12-20 02:56:36,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:36,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:36,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:36,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:36,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799667563] [2023-12-20 02:56:36,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799667563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:36,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:36,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-20 02:56:36,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796312541] [2023-12-20 02:56:36,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:36,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-20 02:56:36,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:36,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-20 02:56:36,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:56:36,863 INFO L87 Difference]: Start difference. First operand 16394 states and 23307 transitions. Second operand has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:39,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:39,865 INFO L93 Difference]: Finished difference Result 37430 states and 53083 transitions. [2023-12-20 02:56:39,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 02:56:39,865 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-20 02:56:39,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:39,909 INFO L225 Difference]: With dead ends: 37430 [2023-12-20 02:56:39,910 INFO L226 Difference]: Without dead ends: 37353 [2023-12-20 02:56:39,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=241, Invalid=1091, Unknown=0, NotChecked=0, Total=1332 [2023-12-20 02:56:39,923 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 10942 mSDsluCounter, 16803 mSDsCounter, 0 mSdLazyCounter, 6616 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10942 SdHoareTripleChecker+Valid, 18385 SdHoareTripleChecker+Invalid, 6640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:39,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10942 Valid, 18385 Invalid, 6640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 6616 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-20 02:56:39,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37353 states. [2023-12-20 02:56:40,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37353 to 16412. [2023-12-20 02:56:40,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16412 states, 16407 states have (on average 1.4218930944109223) internal successors, (23329), 16411 states have internal predecessors, (23329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:40,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16412 states to 16412 states and 23329 transitions. [2023-12-20 02:56:40,190 INFO L78 Accepts]: Start accepts. Automaton has 16412 states and 23329 transitions. Word has length 76 [2023-12-20 02:56:40,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:40,190 INFO L495 AbstractCegarLoop]: Abstraction has 16412 states and 23329 transitions. [2023-12-20 02:56:40,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:40,191 INFO L276 IsEmpty]: Start isEmpty. Operand 16412 states and 23329 transitions. [2023-12-20 02:56:40,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 02:56:40,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:40,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:40,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-20 02:56:40,193 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:40,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:40,193 INFO L85 PathProgramCache]: Analyzing trace with hash -949630122, now seen corresponding path program 1 times [2023-12-20 02:56:40,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:40,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567327543] [2023-12-20 02:56:40,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:40,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:40,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:40,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:40,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567327543] [2023-12-20 02:56:40,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567327543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:40,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:40,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 02:56:40,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310368280] [2023-12-20 02:56:40,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:40,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:56:40,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:40,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:56:40,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-20 02:56:40,520 INFO L87 Difference]: Start difference. First operand 16412 states and 23329 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:41,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:41,192 INFO L93 Difference]: Finished difference Result 28129 states and 40038 transitions. [2023-12-20 02:56:41,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 02:56:41,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-20 02:56:41,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:41,228 INFO L225 Difference]: With dead ends: 28129 [2023-12-20 02:56:41,228 INFO L226 Difference]: Without dead ends: 27985 [2023-12-20 02:56:41,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2023-12-20 02:56:41,238 INFO L413 NwaCegarLoop]: 1364 mSDtfsCounter, 7270 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7270 SdHoareTripleChecker+Valid, 4464 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:41,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7270 Valid, 4464 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:56:41,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27985 states. [2023-12-20 02:56:41,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27985 to 16334. [2023-12-20 02:56:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16334 states, 16332 states have (on average 1.4222997795738428) internal successors, (23229), 16333 states have internal predecessors, (23229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:41,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16334 states to 16334 states and 23229 transitions. [2023-12-20 02:56:41,461 INFO L78 Accepts]: Start accepts. Automaton has 16334 states and 23229 transitions. Word has length 76 [2023-12-20 02:56:41,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:41,461 INFO L495 AbstractCegarLoop]: Abstraction has 16334 states and 23229 transitions. [2023-12-20 02:56:41,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:41,462 INFO L276 IsEmpty]: Start isEmpty. Operand 16334 states and 23229 transitions. [2023-12-20 02:56:41,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-20 02:56:41,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:41,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:41,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-20 02:56:41,464 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:41,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:41,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1694269332, now seen corresponding path program 1 times [2023-12-20 02:56:41,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:41,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642726661] [2023-12-20 02:56:41,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:41,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:41,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:41,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:41,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642726661] [2023-12-20 02:56:41,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642726661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:41,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:41,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:56:41,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336578860] [2023-12-20 02:56:41,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:41,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:56:41,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:41,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:56:41,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:56:41,920 INFO L87 Difference]: Start difference. First operand 16334 states and 23229 transitions. Second operand has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:42,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:42,663 INFO L93 Difference]: Finished difference Result 24187 states and 34424 transitions. [2023-12-20 02:56:42,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:56:42,664 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-20 02:56:42,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:42,690 INFO L225 Difference]: With dead ends: 24187 [2023-12-20 02:56:42,690 INFO L226 Difference]: Without dead ends: 24100 [2023-12-20 02:56:42,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2023-12-20 02:56:42,698 INFO L413 NwaCegarLoop]: 1369 mSDtfsCounter, 5413 mSDsluCounter, 6698 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5413 SdHoareTripleChecker+Valid, 8067 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:42,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5413 Valid, 8067 Invalid, 960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:56:42,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24100 states. [2023-12-20 02:56:42,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24100 to 16300. [2023-12-20 02:56:42,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16300 states, 16299 states have (on average 1.422479906742745) internal successors, (23185), 16299 states have internal predecessors, (23185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:42,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16300 states to 16300 states and 23185 transitions. [2023-12-20 02:56:42,893 INFO L78 Accepts]: Start accepts. Automaton has 16300 states and 23185 transitions. Word has length 77 [2023-12-20 02:56:42,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:42,893 INFO L495 AbstractCegarLoop]: Abstraction has 16300 states and 23185 transitions. [2023-12-20 02:56:42,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:42,893 INFO L276 IsEmpty]: Start isEmpty. Operand 16300 states and 23185 transitions. [2023-12-20 02:56:42,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 02:56:42,896 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:42,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:42,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-20 02:56:42,897 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:42,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:42,897 INFO L85 PathProgramCache]: Analyzing trace with hash -485704557, now seen corresponding path program 1 times [2023-12-20 02:56:42,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:42,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639402706] [2023-12-20 02:56:42,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:42,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:42,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:42,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:42,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639402706] [2023-12-20 02:56:42,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639402706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:42,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:42,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:56:42,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147650603] [2023-12-20 02:56:42,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:42,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:56:42,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:42,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:56:42,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:56:42,988 INFO L87 Difference]: Start difference. First operand 16300 states and 23185 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:43,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:43,239 INFO L93 Difference]: Finished difference Result 61658 states and 88506 transitions. [2023-12-20 02:56:43,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:56:43,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-20 02:56:43,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:43,292 INFO L225 Difference]: With dead ends: 61658 [2023-12-20 02:56:43,292 INFO L226 Difference]: Without dead ends: 46808 [2023-12-20 02:56:43,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:56:43,315 INFO L413 NwaCegarLoop]: 1226 mSDtfsCounter, 4555 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4555 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:43,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4555 Valid, 2681 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:56:43,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46808 states. [2023-12-20 02:56:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46808 to 30332. [2023-12-20 02:56:43,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30332 states, 30331 states have (on average 1.4158781444726518) internal successors, (42945), 30331 states have internal predecessors, (42945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:43,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30332 states to 30332 states and 42945 transitions. [2023-12-20 02:56:43,750 INFO L78 Accepts]: Start accepts. Automaton has 30332 states and 42945 transitions. Word has length 83 [2023-12-20 02:56:43,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:43,750 INFO L495 AbstractCegarLoop]: Abstraction has 30332 states and 42945 transitions. [2023-12-20 02:56:43,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:43,750 INFO L276 IsEmpty]: Start isEmpty. Operand 30332 states and 42945 transitions. [2023-12-20 02:56:43,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:56:43,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:43,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:43,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-20 02:56:43,755 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:43,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:43,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1585660370, now seen corresponding path program 1 times [2023-12-20 02:56:43,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:43,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578465197] [2023-12-20 02:56:43,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:43,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:43,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:43,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578465197] [2023-12-20 02:56:43,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578465197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:43,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:43,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:56:43,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355458970] [2023-12-20 02:56:43,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:43,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:56:43,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:43,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:56:43,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:56:43,874 INFO L87 Difference]: Start difference. First operand 30332 states and 42945 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:44,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:44,113 INFO L93 Difference]: Finished difference Result 50964 states and 72215 transitions. [2023-12-20 02:56:44,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:56:44,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2023-12-20 02:56:44,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:44,138 INFO L225 Difference]: With dead ends: 50964 [2023-12-20 02:56:44,138 INFO L226 Difference]: Without dead ends: 22070 [2023-12-20 02:56:44,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:56:44,158 INFO L413 NwaCegarLoop]: 1220 mSDtfsCounter, 2530 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:44,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2530 Valid, 2036 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:56:44,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22070 states. [2023-12-20 02:56:44,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22070 to 22064. [2023-12-20 02:56:44,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22064 states, 22063 states have (on average 1.4020758736345917) internal successors, (30934), 22063 states have internal predecessors, (30934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:44,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22064 states to 22064 states and 30934 transitions. [2023-12-20 02:56:44,381 INFO L78 Accepts]: Start accepts. Automaton has 22064 states and 30934 transitions. Word has length 84 [2023-12-20 02:56:44,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:44,381 INFO L495 AbstractCegarLoop]: Abstraction has 22064 states and 30934 transitions. [2023-12-20 02:56:44,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:44,382 INFO L276 IsEmpty]: Start isEmpty. Operand 22064 states and 30934 transitions. [2023-12-20 02:56:44,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-20 02:56:44,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:44,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:44,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-20 02:56:44,386 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:44,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:44,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1981973489, now seen corresponding path program 1 times [2023-12-20 02:56:44,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:44,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306798902] [2023-12-20 02:56:44,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:44,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:44,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:44,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:44,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306798902] [2023-12-20 02:56:44,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306798902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:44,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:44,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:44,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173055066] [2023-12-20 02:56:44,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:44,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:44,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:44,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:44,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:44,477 INFO L87 Difference]: Start difference. First operand 22064 states and 30934 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:44,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:44,945 INFO L93 Difference]: Finished difference Result 61862 states and 87112 transitions. [2023-12-20 02:56:44,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:44,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-20 02:56:44,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:44,993 INFO L225 Difference]: With dead ends: 61862 [2023-12-20 02:56:44,993 INFO L226 Difference]: Without dead ends: 41236 [2023-12-20 02:56:45,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:45,012 INFO L413 NwaCegarLoop]: 1278 mSDtfsCounter, 746 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:45,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 1787 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:56:45,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41236 states. [2023-12-20 02:56:45,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41236 to 39282. [2023-12-20 02:56:45,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39282 states, 39281 states have (on average 1.3975204297242942) internal successors, (54896), 39281 states have internal predecessors, (54896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39282 states to 39282 states and 54896 transitions. [2023-12-20 02:56:45,618 INFO L78 Accepts]: Start accepts. Automaton has 39282 states and 54896 transitions. Word has length 86 [2023-12-20 02:56:45,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:45,618 INFO L495 AbstractCegarLoop]: Abstraction has 39282 states and 54896 transitions. [2023-12-20 02:56:45,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:45,619 INFO L276 IsEmpty]: Start isEmpty. Operand 39282 states and 54896 transitions. [2023-12-20 02:56:45,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-20 02:56:45,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:45,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:45,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-20 02:56:45,622 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:45,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:45,623 INFO L85 PathProgramCache]: Analyzing trace with hash -999685639, now seen corresponding path program 1 times [2023-12-20 02:56:45,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:45,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943952752] [2023-12-20 02:56:45,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:45,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:45,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:45,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:45,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943952752] [2023-12-20 02:56:45,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943952752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:45,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:45,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:45,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333970725] [2023-12-20 02:56:45,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:45,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:45,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:45,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:45,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:45,720 INFO L87 Difference]: Start difference. First operand 39282 states and 54896 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:46,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:46,186 INFO L93 Difference]: Finished difference Result 112062 states and 156642 transitions. [2023-12-20 02:56:46,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:46,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-20 02:56:46,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:46,277 INFO L225 Difference]: With dead ends: 112062 [2023-12-20 02:56:46,277 INFO L226 Difference]: Without dead ends: 74218 [2023-12-20 02:56:46,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:46,297 INFO L413 NwaCegarLoop]: 1259 mSDtfsCounter, 604 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 1885 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:46,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 1885 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:56:46,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74218 states. [2023-12-20 02:56:47,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74218 to 70312. [2023-12-20 02:56:47,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70312 states, 70311 states have (on average 1.3869238099301675) internal successors, (97516), 70311 states have internal predecessors, (97516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:47,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70312 states to 70312 states and 97516 transitions. [2023-12-20 02:56:47,531 INFO L78 Accepts]: Start accepts. Automaton has 70312 states and 97516 transitions. Word has length 87 [2023-12-20 02:56:47,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:47,531 INFO L495 AbstractCegarLoop]: Abstraction has 70312 states and 97516 transitions. [2023-12-20 02:56:47,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:47,531 INFO L276 IsEmpty]: Start isEmpty. Operand 70312 states and 97516 transitions. [2023-12-20 02:56:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-20 02:56:47,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:47,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:47,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-20 02:56:47,535 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:47,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:47,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2030644965, now seen corresponding path program 1 times [2023-12-20 02:56:47,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:47,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032486173] [2023-12-20 02:56:47,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:47,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:47,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:47,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:47,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032486173] [2023-12-20 02:56:47,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032486173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:47,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:47,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:56:47,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001934511] [2023-12-20 02:56:47,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:47,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:56:47,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:47,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:56:47,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:56:47,712 INFO L87 Difference]: Start difference. First operand 70312 states and 97516 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:48,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:48,411 INFO L93 Difference]: Finished difference Result 147178 states and 201997 transitions. [2023-12-20 02:56:48,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:56:48,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-20 02:56:48,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:48,603 INFO L225 Difference]: With dead ends: 147178 [2023-12-20 02:56:48,604 INFO L226 Difference]: Without dead ends: 147176 [2023-12-20 02:56:48,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:56:48,619 INFO L413 NwaCegarLoop]: 1317 mSDtfsCounter, 1299 mSDsluCounter, 3933 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 5250 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:48,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 5250 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:56:48,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147176 states. [2023-12-20 02:56:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147176 to 74512. [2023-12-20 02:56:49,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74512 states, 74511 states have (on average 1.3651138758035726) internal successors, (101716), 74511 states have internal predecessors, (101716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:50,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74512 states to 74512 states and 101716 transitions. [2023-12-20 02:56:50,008 INFO L78 Accepts]: Start accepts. Automaton has 74512 states and 101716 transitions. Word has length 90 [2023-12-20 02:56:50,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:50,008 INFO L495 AbstractCegarLoop]: Abstraction has 74512 states and 101716 transitions. [2023-12-20 02:56:50,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:50,008 INFO L276 IsEmpty]: Start isEmpty. Operand 74512 states and 101716 transitions. [2023-12-20 02:56:50,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 02:56:50,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:50,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:50,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-20 02:56:50,012 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:50,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1373049890, now seen corresponding path program 1 times [2023-12-20 02:56:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:50,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753477433] [2023-12-20 02:56:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:50,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:50,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:50,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753477433] [2023-12-20 02:56:50,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753477433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:50,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:50,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:50,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655849726] [2023-12-20 02:56:50,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:50,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:50,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:50,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:50,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:50,249 INFO L87 Difference]: Start difference. First operand 74512 states and 101716 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:50,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:50,896 INFO L93 Difference]: Finished difference Result 209257 states and 285403 transitions. [2023-12-20 02:56:50,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:50,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-20 02:56:50,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:51,086 INFO L225 Difference]: With dead ends: 209257 [2023-12-20 02:56:51,087 INFO L226 Difference]: Without dead ends: 136183 [2023-12-20 02:56:51,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:51,295 INFO L413 NwaCegarLoop]: 1214 mSDtfsCounter, 612 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:51,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 1873 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:56:51,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136183 states. [2023-12-20 02:56:52,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136183 to 136181. [2023-12-20 02:56:52,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136181 states, 136180 states have (on average 1.3508077544426493) internal successors, (183953), 136180 states have internal predecessors, (183953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136181 states to 136181 states and 183953 transitions. [2023-12-20 02:56:53,076 INFO L78 Accepts]: Start accepts. Automaton has 136181 states and 183953 transitions. Word has length 91 [2023-12-20 02:56:53,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:53,076 INFO L495 AbstractCegarLoop]: Abstraction has 136181 states and 183953 transitions. [2023-12-20 02:56:53,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:53,076 INFO L276 IsEmpty]: Start isEmpty. Operand 136181 states and 183953 transitions. [2023-12-20 02:56:53,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 02:56:53,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:53,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:53,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-20 02:56:53,081 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:53,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:53,081 INFO L85 PathProgramCache]: Analyzing trace with hash -99813908, now seen corresponding path program 1 times [2023-12-20 02:56:53,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:53,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925952648] [2023-12-20 02:56:53,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:53,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:53,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:53,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:53,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925952648] [2023-12-20 02:56:53,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925952648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:53,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:53,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:53,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290327171] [2023-12-20 02:56:53,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:53,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:53,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:53,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:53,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:53,143 INFO L87 Difference]: Start difference. First operand 136181 states and 183953 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:53,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:53,802 INFO L93 Difference]: Finished difference Result 165553 states and 223059 transitions. [2023-12-20 02:56:53,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:53,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-20 02:56:53,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:54,144 INFO L225 Difference]: With dead ends: 165553 [2023-12-20 02:56:54,144 INFO L226 Difference]: Without dead ends: 106793 [2023-12-20 02:56:54,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:54,163 INFO L413 NwaCegarLoop]: 1235 mSDtfsCounter, 471 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:54,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 2036 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:56:54,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106793 states. [2023-12-20 02:56:55,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106793 to 106199. [2023-12-20 02:56:55,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106199 states, 106198 states have (on average 1.330203958643289) internal successors, (141265), 106198 states have internal predecessors, (141265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:55,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106199 states to 106199 states and 141265 transitions. [2023-12-20 02:56:55,541 INFO L78 Accepts]: Start accepts. Automaton has 106199 states and 141265 transitions. Word has length 92 [2023-12-20 02:56:55,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:55,542 INFO L495 AbstractCegarLoop]: Abstraction has 106199 states and 141265 transitions. [2023-12-20 02:56:55,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:55,542 INFO L276 IsEmpty]: Start isEmpty. Operand 106199 states and 141265 transitions. [2023-12-20 02:56:55,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 02:56:55,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:55,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:55,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-20 02:56:55,547 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:55,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:55,547 INFO L85 PathProgramCache]: Analyzing trace with hash 2096756773, now seen corresponding path program 1 times [2023-12-20 02:56:55,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:55,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477203860] [2023-12-20 02:56:55,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:55,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:55,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:55,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477203860] [2023-12-20 02:56:55,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477203860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:55,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:55,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:56:55,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443613028] [2023-12-20 02:56:55,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:55,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:56:55,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:55,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:56:55,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:56:55,946 INFO L87 Difference]: Start difference. First operand 106199 states and 141265 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:56,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:56,774 INFO L93 Difference]: Finished difference Result 200357 states and 267258 transitions. [2023-12-20 02:56:56,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:56:56,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 02:56:56,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:57,035 INFO L225 Difference]: With dead ends: 200357 [2023-12-20 02:56:57,036 INFO L226 Difference]: Without dead ends: 169579 [2023-12-20 02:56:57,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:56:57,060 INFO L413 NwaCegarLoop]: 1276 mSDtfsCounter, 3394 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3394 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:57,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3394 Valid, 3330 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:56:57,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169579 states. [2023-12-20 02:56:58,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169579 to 133101. [2023-12-20 02:56:58,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133101 states, 133100 states have (on average 1.3270548459804659) internal successors, (176631), 133100 states have internal predecessors, (176631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:59,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133101 states to 133101 states and 176631 transitions. [2023-12-20 02:56:59,117 INFO L78 Accepts]: Start accepts. Automaton has 133101 states and 176631 transitions. Word has length 93 [2023-12-20 02:56:59,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:59,117 INFO L495 AbstractCegarLoop]: Abstraction has 133101 states and 176631 transitions. [2023-12-20 02:56:59,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:59,123 INFO L276 IsEmpty]: Start isEmpty. Operand 133101 states and 176631 transitions. [2023-12-20 02:56:59,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 02:56:59,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:59,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:59,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-20 02:56:59,128 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:56:59,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:59,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1325075428, now seen corresponding path program 1 times [2023-12-20 02:56:59,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:59,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423248687] [2023-12-20 02:56:59,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:59,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:59,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:59,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423248687] [2023-12-20 02:56:59,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423248687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:59,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:59,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:56:59,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384300895] [2023-12-20 02:56:59,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:59,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:56:59,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:59,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:56:59,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:56:59,231 INFO L87 Difference]: Start difference. First operand 133101 states and 176631 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:00,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:00,191 INFO L93 Difference]: Finished difference Result 217893 states and 290450 transitions. [2023-12-20 02:57:00,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:57:00,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-20 02:57:00,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:00,800 INFO L225 Difference]: With dead ends: 217893 [2023-12-20 02:57:00,800 INFO L226 Difference]: Without dead ends: 192035 [2023-12-20 02:57:00,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:57:00,899 INFO L413 NwaCegarLoop]: 1299 mSDtfsCounter, 3409 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3409 SdHoareTripleChecker+Valid, 3288 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:00,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3409 Valid, 3288 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:57:01,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192035 states. [2023-12-20 02:57:02,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192035 to 155125. [2023-12-20 02:57:02,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155125 states, 155124 states have (on average 1.3268288594930506) internal successors, (205823), 155124 states have internal predecessors, (205823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:03,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155125 states to 155125 states and 205823 transitions. [2023-12-20 02:57:03,166 INFO L78 Accepts]: Start accepts. Automaton has 155125 states and 205823 transitions. Word has length 94 [2023-12-20 02:57:03,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:03,166 INFO L495 AbstractCegarLoop]: Abstraction has 155125 states and 205823 transitions. [2023-12-20 02:57:03,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:03,167 INFO L276 IsEmpty]: Start isEmpty. Operand 155125 states and 205823 transitions. [2023-12-20 02:57:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 02:57:03,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:03,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:57:03,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-20 02:57:03,171 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:57:03,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:03,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1249414222, now seen corresponding path program 1 times [2023-12-20 02:57:03,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:03,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969764963] [2023-12-20 02:57:03,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:03,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:03,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:57:03,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:03,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969764963] [2023-12-20 02:57:03,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969764963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:57:03,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:57:03,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:57:03,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148638136] [2023-12-20 02:57:03,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:57:03,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:57:03,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:03,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:57:03,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:57:03,276 INFO L87 Difference]: Start difference. First operand 155125 states and 205823 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:04,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:04,407 INFO L93 Difference]: Finished difference Result 234997 states and 312626 transitions. [2023-12-20 02:57:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:57:04,408 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-20 02:57:04,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:04,751 INFO L225 Difference]: With dead ends: 234997 [2023-12-20 02:57:04,752 INFO L226 Difference]: Without dead ends: 204219 [2023-12-20 02:57:05,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:57:05,124 INFO L413 NwaCegarLoop]: 1282 mSDtfsCounter, 3496 mSDsluCounter, 1771 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3496 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:05,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3496 Valid, 3053 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:57:05,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204219 states. [2023-12-20 02:57:06,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204219 to 182027. [2023-12-20 02:57:07,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182027 states, 182026 states have (on average 1.3250249964290817) internal successors, (241189), 182026 states have internal predecessors, (241189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:07,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182027 states to 182027 states and 241189 transitions. [2023-12-20 02:57:07,410 INFO L78 Accepts]: Start accepts. Automaton has 182027 states and 241189 transitions. Word has length 94 [2023-12-20 02:57:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:07,410 INFO L495 AbstractCegarLoop]: Abstraction has 182027 states and 241189 transitions. [2023-12-20 02:57:07,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:07,410 INFO L276 IsEmpty]: Start isEmpty. Operand 182027 states and 241189 transitions. [2023-12-20 02:57:07,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 02:57:07,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:07,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:57:07,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-20 02:57:07,415 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:57:07,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:07,415 INFO L85 PathProgramCache]: Analyzing trace with hash -2024884009, now seen corresponding path program 1 times [2023-12-20 02:57:07,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:07,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107346886] [2023-12-20 02:57:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:07,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:07,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:57:07,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:07,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107346886] [2023-12-20 02:57:07,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107346886] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:57:07,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:57:07,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:57:07,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116284822] [2023-12-20 02:57:07,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:57:07,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:57:07,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:07,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:57:07,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:57:07,945 INFO L87 Difference]: Start difference. First operand 182027 states and 241189 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:08,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:08,986 INFO L93 Difference]: Finished difference Result 262149 states and 347954 transitions. [2023-12-20 02:57:08,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:57:08,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 02:57:08,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:09,358 INFO L225 Difference]: With dead ends: 262149 [2023-12-20 02:57:09,358 INFO L226 Difference]: Without dead ends: 231227 [2023-12-20 02:57:09,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:57:09,425 INFO L413 NwaCegarLoop]: 1327 mSDtfsCounter, 3298 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3298 SdHoareTripleChecker+Valid, 3209 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:09,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3298 Valid, 3209 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:57:09,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231227 states. [2023-12-20 02:57:12,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231227 to 209035. [2023-12-20 02:57:12,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209035 states, 209034 states have (on average 1.3229474630921285) internal successors, (276541), 209034 states have internal predecessors, (276541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:12,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209035 states to 209035 states and 276541 transitions. [2023-12-20 02:57:12,685 INFO L78 Accepts]: Start accepts. Automaton has 209035 states and 276541 transitions. Word has length 95 [2023-12-20 02:57:12,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:12,685 INFO L495 AbstractCegarLoop]: Abstraction has 209035 states and 276541 transitions. [2023-12-20 02:57:12,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:12,685 INFO L276 IsEmpty]: Start isEmpty. Operand 209035 states and 276541 transitions. [2023-12-20 02:57:12,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 02:57:12,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:12,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:57:12,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-20 02:57:12,690 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:57:12,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:12,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1233078505, now seen corresponding path program 1 times [2023-12-20 02:57:12,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:12,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699056909] [2023-12-20 02:57:12,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:12,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:12,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:57:12,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:12,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699056909] [2023-12-20 02:57:12,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699056909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:57:12,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:57:12,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:57:12,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073221871] [2023-12-20 02:57:12,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:57:12,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:57:12,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:12,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:57:12,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:57:12,856 INFO L87 Difference]: Start difference. First operand 209035 states and 276541 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:16,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:16,955 INFO L93 Difference]: Finished difference Result 818896 states and 1080456 transitions. [2023-12-20 02:57:16,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:57:16,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-20 02:57:16,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:18,935 INFO L225 Difference]: With dead ends: 818896 [2023-12-20 02:57:18,935 INFO L226 Difference]: Without dead ends: 708430 [2023-12-20 02:57:19,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:57:19,052 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 5997 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5997 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:19,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5997 Valid, 1669 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 02:57:19,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708430 states. [2023-12-20 02:57:24,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708430 to 290347. [2023-12-20 02:57:24,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290347 states, 290346 states have (on average 1.322411880997155) internal successors, (383957), 290346 states have internal predecessors, (383957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:25,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290347 states to 290347 states and 383957 transitions. [2023-12-20 02:57:25,352 INFO L78 Accepts]: Start accepts. Automaton has 290347 states and 383957 transitions. Word has length 96 [2023-12-20 02:57:25,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:25,352 INFO L495 AbstractCegarLoop]: Abstraction has 290347 states and 383957 transitions. [2023-12-20 02:57:25,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:25,352 INFO L276 IsEmpty]: Start isEmpty. Operand 290347 states and 383957 transitions. [2023-12-20 02:57:25,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 02:57:25,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:25,358 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, 1] [2023-12-20 02:57:25,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-20 02:57:25,358 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:57:25,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:25,358 INFO L85 PathProgramCache]: Analyzing trace with hash 2014993651, now seen corresponding path program 1 times [2023-12-20 02:57:25,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:25,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809987973] [2023-12-20 02:57:25,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:25,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:25,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:57:25,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:25,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809987973] [2023-12-20 02:57:25,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809987973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:57:25,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:57:25,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:57:25,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663315330] [2023-12-20 02:57:25,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:57:25,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:57:25,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:25,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:57:25,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:57:25,504 INFO L87 Difference]: Start difference. First operand 290347 states and 383957 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:27,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:27,164 INFO L93 Difference]: Finished difference Result 406571 states and 538817 transitions. [2023-12-20 02:57:27,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:57:27,165 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-20 02:57:27,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:27,666 INFO L225 Difference]: With dead ends: 406571 [2023-12-20 02:57:27,667 INFO L226 Difference]: Without dead ends: 324313 [2023-12-20 02:57:27,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:57:27,718 INFO L413 NwaCegarLoop]: 1300 mSDtfsCounter, 3519 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3519 SdHoareTripleChecker+Valid, 3026 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:27,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3519 Valid, 3026 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:57:27,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324313 states. [2023-12-20 02:57:30,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324313 to 289003. [2023-12-20 02:57:30,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289003 states, 289002 states have (on average 1.3208109286440923) internal successors, (381717), 289002 states have internal predecessors, (381717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289003 states to 289003 states and 381717 transitions. [2023-12-20 02:57:31,928 INFO L78 Accepts]: Start accepts. Automaton has 289003 states and 381717 transitions. Word has length 98 [2023-12-20 02:57:31,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:31,929 INFO L495 AbstractCegarLoop]: Abstraction has 289003 states and 381717 transitions. [2023-12-20 02:57:31,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:31,929 INFO L276 IsEmpty]: Start isEmpty. Operand 289003 states and 381717 transitions. [2023-12-20 02:57:31,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 02:57:31,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:31,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:57:31,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-20 02:57:31,934 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:57:31,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:31,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1252445637, now seen corresponding path program 1 times [2023-12-20 02:57:31,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:31,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599572826] [2023-12-20 02:57:31,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:31,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:57:32,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:32,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599572826] [2023-12-20 02:57:32,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599572826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:57:32,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:57:32,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:57:32,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633282199] [2023-12-20 02:57:32,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:57:32,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:57:32,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:32,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:57:32,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:57:32,067 INFO L87 Difference]: Start difference. First operand 289003 states and 381717 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:33,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:33,457 INFO L93 Difference]: Finished difference Result 398923 states and 527657 transitions. [2023-12-20 02:57:33,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:57:33,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-20 02:57:33,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:34,333 INFO L225 Difference]: With dead ends: 398923 [2023-12-20 02:57:34,334 INFO L226 Difference]: Without dead ends: 323089 [2023-12-20 02:57:34,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:57:34,424 INFO L413 NwaCegarLoop]: 1279 mSDtfsCounter, 3501 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3501 SdHoareTripleChecker+Valid, 3063 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:34,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3501 Valid, 3063 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:57:34,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323089 states. [2023-12-20 02:57:37,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323089 to 287779. [2023-12-20 02:57:37,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287779 states, 287778 states have (on average 1.319339907845631) internal successors, (379677), 287778 states have internal predecessors, (379677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:39,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287779 states to 287779 states and 379677 transitions. [2023-12-20 02:57:39,082 INFO L78 Accepts]: Start accepts. Automaton has 287779 states and 379677 transitions. Word has length 98 [2023-12-20 02:57:39,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:39,082 INFO L495 AbstractCegarLoop]: Abstraction has 287779 states and 379677 transitions. [2023-12-20 02:57:39,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:39,083 INFO L276 IsEmpty]: Start isEmpty. Operand 287779 states and 379677 transitions. [2023-12-20 02:57:39,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 02:57:39,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:39,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:57:39,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-20 02:57:39,089 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:57:39,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:39,089 INFO L85 PathProgramCache]: Analyzing trace with hash 447362521, now seen corresponding path program 1 times [2023-12-20 02:57:39,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:39,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677696812] [2023-12-20 02:57:39,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:39,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:39,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:57:39,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:39,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677696812] [2023-12-20 02:57:39,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677696812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:57:39,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:57:39,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:57:39,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437838575] [2023-12-20 02:57:39,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:57:39,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:57:39,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:39,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:57:39,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:57:39,225 INFO L87 Difference]: Start difference. First operand 287779 states and 379677 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:41,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:41,837 INFO L93 Difference]: Finished difference Result 333611 states and 438699 transitions. [2023-12-20 02:57:41,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:57:41,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-20 02:57:41,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:42,406 INFO L225 Difference]: With dead ends: 333611 [2023-12-20 02:57:42,406 INFO L226 Difference]: Without dead ends: 327545 [2023-12-20 02:57:42,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:57:42,472 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 5149 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5149 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:42,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5149 Valid, 1489 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:57:42,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327545 states. [2023-12-20 02:57:45,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327545 to 287775. [2023-12-20 02:57:45,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287775 states, 287774 states have (on average 1.3193304468089542) internal successors, (379669), 287774 states have internal predecessors, (379669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:46,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287775 states to 287775 states and 379669 transitions. [2023-12-20 02:57:46,600 INFO L78 Accepts]: Start accepts. Automaton has 287775 states and 379669 transitions. Word has length 99 [2023-12-20 02:57:46,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:46,600 INFO L495 AbstractCegarLoop]: Abstraction has 287775 states and 379669 transitions. [2023-12-20 02:57:46,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:46,600 INFO L276 IsEmpty]: Start isEmpty. Operand 287775 states and 379669 transitions. [2023-12-20 02:57:46,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 02:57:46,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:46,605 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, 1, 1, 1, 1] [2023-12-20 02:57:46,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-20 02:57:46,606 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:57:46,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:46,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1194642133, now seen corresponding path program 1 times [2023-12-20 02:57:46,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:46,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965933190] [2023-12-20 02:57:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:46,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:46,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:57:46,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:46,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965933190] [2023-12-20 02:57:46,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965933190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:57:46,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:57:46,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:57:46,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165113761] [2023-12-20 02:57:46,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:57:46,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:57:46,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:46,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:57:46,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:57:46,724 INFO L87 Difference]: Start difference. First operand 287775 states and 379669 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:48,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:48,438 INFO L93 Difference]: Finished difference Result 333607 states and 438691 transitions. [2023-12-20 02:57:48,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:57:48,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-20 02:57:48,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:49,195 INFO L225 Difference]: With dead ends: 333607 [2023-12-20 02:57:49,196 INFO L226 Difference]: Without dead ends: 327541 [2023-12-20 02:57:49,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:57:49,246 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 5123 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5123 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:49,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5123 Valid, 1498 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:57:49,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327541 states. [2023-12-20 02:57:52,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327541 to 287771. [2023-12-20 02:57:52,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287771 states, 287770 states have (on average 1.319320985509261) internal successors, (379661), 287770 states have internal predecessors, (379661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:53,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287771 states to 287771 states and 379661 transitions. [2023-12-20 02:57:53,139 INFO L78 Accepts]: Start accepts. Automaton has 287771 states and 379661 transitions. Word has length 99 [2023-12-20 02:57:53,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:53,140 INFO L495 AbstractCegarLoop]: Abstraction has 287771 states and 379661 transitions. [2023-12-20 02:57:53,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:53,141 INFO L276 IsEmpty]: Start isEmpty. Operand 287771 states and 379661 transitions. [2023-12-20 02:57:53,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 02:57:53,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:53,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:57:53,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-20 02:57:53,147 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:57:53,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:53,148 INFO L85 PathProgramCache]: Analyzing trace with hash -13353358, now seen corresponding path program 1 times [2023-12-20 02:57:53,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:53,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425521416] [2023-12-20 02:57:53,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:53,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:57:53,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:53,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425521416] [2023-12-20 02:57:53,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425521416] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:57:53,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:57:53,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:57:53,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886990694] [2023-12-20 02:57:53,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:57:53,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:57:53,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:53,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:57:53,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:57:53,655 INFO L87 Difference]: Start difference. First operand 287771 states and 379661 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:55,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:55,350 INFO L93 Difference]: Finished difference Result 333571 states and 438611 transitions. [2023-12-20 02:57:55,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:57:55,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-20 02:57:55,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:55,796 INFO L225 Difference]: With dead ends: 333571 [2023-12-20 02:57:55,796 INFO L226 Difference]: Without dead ends: 327505 [2023-12-20 02:57:55,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:57:55,877 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 5099 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5099 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:55,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5099 Valid, 1512 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:57:56,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327505 states. [2023-12-20 02:57:59,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327505 to 287767. [2023-12-20 02:57:59,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287767 states, 287766 states have (on average 1.3193115239465398) internal successors, (379653), 287766 states have internal predecessors, (379653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:00,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287767 states to 287767 states and 379653 transitions. [2023-12-20 02:58:00,391 INFO L78 Accepts]: Start accepts. Automaton has 287767 states and 379653 transitions. Word has length 99 [2023-12-20 02:58:00,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:00,392 INFO L495 AbstractCegarLoop]: Abstraction has 287767 states and 379653 transitions. [2023-12-20 02:58:00,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:00,392 INFO L276 IsEmpty]: Start isEmpty. Operand 287767 states and 379653 transitions. [2023-12-20 02:58:00,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 02:58:00,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:00,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:58:00,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-20 02:58:00,397 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:58:00,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:00,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1980919278, now seen corresponding path program 1 times [2023-12-20 02:58:00,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:00,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537220741] [2023-12-20 02:58:00,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:00,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:00,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:00,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:00,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537220741] [2023-12-20 02:58:00,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537220741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:00,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:00,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:58:00,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046557588] [2023-12-20 02:58:00,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:00,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:58:00,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:00,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:58:00,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:58:00,567 INFO L87 Difference]: Start difference. First operand 287767 states and 379653 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:02,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:02,142 INFO L93 Difference]: Finished difference Result 397687 states and 525593 transitions. [2023-12-20 02:58:02,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:58:02,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-20 02:58:02,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:02,661 INFO L225 Difference]: With dead ends: 397687 [2023-12-20 02:58:02,661 INFO L226 Difference]: Without dead ends: 321853 [2023-12-20 02:58:03,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:58:03,073 INFO L413 NwaCegarLoop]: 1271 mSDtfsCounter, 3491 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3491 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:03,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3491 Valid, 3028 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:58:03,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321853 states. [2023-12-20 02:58:06,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321853 to 286543. [2023-12-20 02:58:06,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286543 states, 286542 states have (on average 1.3178277529995603) internal successors, (377613), 286542 states have internal predecessors, (377613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:06,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286543 states to 286543 states and 377613 transitions. [2023-12-20 02:58:06,904 INFO L78 Accepts]: Start accepts. Automaton has 286543 states and 377613 transitions. Word has length 99 [2023-12-20 02:58:06,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:06,904 INFO L495 AbstractCegarLoop]: Abstraction has 286543 states and 377613 transitions. [2023-12-20 02:58:06,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:06,904 INFO L276 IsEmpty]: Start isEmpty. Operand 286543 states and 377613 transitions. [2023-12-20 02:58:06,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:58:06,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:06,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:58:06,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-20 02:58:06,910 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:58:06,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:06,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1633285806, now seen corresponding path program 1 times [2023-12-20 02:58:06,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:06,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092038440] [2023-12-20 02:58:06,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:06,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:07,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:07,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:07,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092038440] [2023-12-20 02:58:07,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092038440] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:07,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:07,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:58:07,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627141204] [2023-12-20 02:58:07,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:07,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:58:07,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:07,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:58:07,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:58:07,026 INFO L87 Difference]: Start difference. First operand 286543 states and 377613 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:09,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:09,200 INFO L93 Difference]: Finished difference Result 323399 states and 424931 transitions. [2023-12-20 02:58:09,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:58:09,200 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 02:58:09,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:09,631 INFO L225 Difference]: With dead ends: 323399 [2023-12-20 02:58:09,631 INFO L226 Difference]: Without dead ends: 321853 [2023-12-20 02:58:09,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:58:09,689 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 5062 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:09,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5062 Valid, 1498 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 02:58:09,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321853 states. [2023-12-20 02:58:12,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321853 to 286539. [2023-12-20 02:58:13,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286539 states, 286538 states have (on average 1.3178182300427868) internal successors, (377605), 286538 states have internal predecessors, (377605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:13,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286539 states to 286539 states and 377605 transitions. [2023-12-20 02:58:13,935 INFO L78 Accepts]: Start accepts. Automaton has 286539 states and 377605 transitions. Word has length 100 [2023-12-20 02:58:13,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:13,935 INFO L495 AbstractCegarLoop]: Abstraction has 286539 states and 377605 transitions. [2023-12-20 02:58:13,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:13,935 INFO L276 IsEmpty]: Start isEmpty. Operand 286539 states and 377605 transitions. [2023-12-20 02:58:13,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:58:13,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:13,940 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] [2023-12-20 02:58:13,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-20 02:58:13,940 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:58:13,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:13,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1185657055, now seen corresponding path program 1 times [2023-12-20 02:58:13,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:13,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650819793] [2023-12-20 02:58:13,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:13,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:14,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:14,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:14,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650819793] [2023-12-20 02:58:14,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650819793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:14,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:14,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:58:14,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023484314] [2023-12-20 02:58:14,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:14,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:58:14,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:14,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:58:14,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:58:14,070 INFO L87 Difference]: Start difference. First operand 286539 states and 377605 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:15,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:15,580 INFO L93 Difference]: Finished difference Result 401115 states and 529161 transitions. [2023-12-20 02:58:15,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:58:15,580 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 02:58:15,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:16,594 INFO L225 Difference]: With dead ends: 401115 [2023-12-20 02:58:16,595 INFO L226 Difference]: Without dead ends: 320529 [2023-12-20 02:58:16,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:58:16,740 INFO L413 NwaCegarLoop]: 1311 mSDtfsCounter, 3285 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3285 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:16,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3285 Valid, 3171 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:58:16,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320529 states. [2023-12-20 02:58:20,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320529 to 285219. [2023-12-20 02:58:20,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285219 states, 285218 states have (on average 1.3162037459066398) internal successors, (375405), 285218 states have internal predecessors, (375405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:21,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285219 states to 285219 states and 375405 transitions. [2023-12-20 02:58:21,365 INFO L78 Accepts]: Start accepts. Automaton has 285219 states and 375405 transitions. Word has length 100 [2023-12-20 02:58:21,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:21,366 INFO L495 AbstractCegarLoop]: Abstraction has 285219 states and 375405 transitions. [2023-12-20 02:58:21,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:21,366 INFO L276 IsEmpty]: Start isEmpty. Operand 285219 states and 375405 transitions. [2023-12-20 02:58:21,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 02:58:21,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:21,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:58:21,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-20 02:58:21,372 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:58:21,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:21,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1335357998, now seen corresponding path program 1 times [2023-12-20 02:58:21,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:21,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810227221] [2023-12-20 02:58:21,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:21,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:21,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:21,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:21,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810227221] [2023-12-20 02:58:21,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810227221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:21,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:21,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:58:21,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998747826] [2023-12-20 02:58:21,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:21,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:58:21,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:21,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:58:21,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:58:21,451 INFO L87 Difference]: Start difference. First operand 285219 states and 375405 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:22,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:22,811 INFO L93 Difference]: Finished difference Result 367359 states and 481983 transitions. [2023-12-20 02:58:22,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:58:22,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-20 02:58:22,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:23,553 INFO L225 Difference]: With dead ends: 367359 [2023-12-20 02:58:23,553 INFO L226 Difference]: Without dead ends: 203057 [2023-12-20 02:58:23,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:58:23,628 INFO L413 NwaCegarLoop]: 1183 mSDtfsCounter, 499 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:23,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 1904 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:58:23,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203057 states. [2023-12-20 02:58:25,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203057 to 202655. [2023-12-20 02:58:26,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202655 states, 202654 states have (on average 1.3002111974103645) internal successors, (263493), 202654 states have internal predecessors, (263493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:26,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202655 states to 202655 states and 263493 transitions. [2023-12-20 02:58:26,616 INFO L78 Accepts]: Start accepts. Automaton has 202655 states and 263493 transitions. Word has length 101 [2023-12-20 02:58:26,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:26,616 INFO L495 AbstractCegarLoop]: Abstraction has 202655 states and 263493 transitions. [2023-12-20 02:58:26,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:26,616 INFO L276 IsEmpty]: Start isEmpty. Operand 202655 states and 263493 transitions. [2023-12-20 02:58:26,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 02:58:26,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:26,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:58:26,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-20 02:58:26,627 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:58:26,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:26,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1469945737, now seen corresponding path program 1 times [2023-12-20 02:58:26,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:26,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138534618] [2023-12-20 02:58:26,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:26,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:27,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:27,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:27,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138534618] [2023-12-20 02:58:27,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138534618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:27,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:27,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:58:27,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980295842] [2023-12-20 02:58:27,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:27,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:58:27,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:27,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:58:27,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:58:27,148 INFO L87 Difference]: Start difference. First operand 202655 states and 263493 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:29,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:29,043 INFO L93 Difference]: Finished difference Result 371451 states and 479497 transitions. [2023-12-20 02:58:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:58:29,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-20 02:58:29,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:29,428 INFO L225 Difference]: With dead ends: 371451 [2023-12-20 02:58:29,428 INFO L226 Difference]: Without dead ends: 268265 [2023-12-20 02:58:29,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:58:29,512 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 5179 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5179 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:29,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5179 Valid, 1415 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:58:29,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268265 states. [2023-12-20 02:58:32,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268265 to 202655. [2023-12-20 02:58:32,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202655 states, 202654 states have (on average 1.2935002516604657) internal successors, (262133), 202654 states have internal predecessors, (262133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202655 states to 202655 states and 262133 transitions. [2023-12-20 02:58:32,463 INFO L78 Accepts]: Start accepts. Automaton has 202655 states and 262133 transitions. Word has length 110 [2023-12-20 02:58:32,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:32,464 INFO L495 AbstractCegarLoop]: Abstraction has 202655 states and 262133 transitions. [2023-12-20 02:58:32,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:32,464 INFO L276 IsEmpty]: Start isEmpty. Operand 202655 states and 262133 transitions. [2023-12-20 02:58:32,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-20 02:58:32,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:32,816 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:58:32,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-20 02:58:32,817 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:58:32,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:32,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1837740612, now seen corresponding path program 1 times [2023-12-20 02:58:32,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:32,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559903706] [2023-12-20 02:58:32,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:32,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-20 02:58:33,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:33,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559903706] [2023-12-20 02:58:33,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559903706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:33,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:33,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:58:33,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448018154] [2023-12-20 02:58:33,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:33,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:58:33,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:33,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:58:33,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:58:33,066 INFO L87 Difference]: Start difference. First operand 202655 states and 262133 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:35,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:35,097 INFO L93 Difference]: Finished difference Result 302536 states and 389833 transitions. [2023-12-20 02:58:35,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:58:35,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2023-12-20 02:58:35,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:35,535 INFO L225 Difference]: With dead ends: 302536 [2023-12-20 02:58:35,535 INFO L226 Difference]: Without dead ends: 285527 [2023-12-20 02:58:35,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:58:35,616 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 4763 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4763 SdHoareTripleChecker+Valid, 2957 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:35,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4763 Valid, 2957 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 02:58:36,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285527 states. [2023-12-20 02:58:38,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285527 to 202640. [2023-12-20 02:58:38,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202640 states, 202639 states have (on average 1.2935170426225948) internal successors, (262117), 202639 states have internal predecessors, (262117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:39,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202640 states to 202640 states and 262117 transitions. [2023-12-20 02:58:39,048 INFO L78 Accepts]: Start accepts. Automaton has 202640 states and 262117 transitions. Word has length 118 [2023-12-20 02:58:39,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:39,049 INFO L495 AbstractCegarLoop]: Abstraction has 202640 states and 262117 transitions. [2023-12-20 02:58:39,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:39,049 INFO L276 IsEmpty]: Start isEmpty. Operand 202640 states and 262117 transitions. [2023-12-20 02:58:39,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-20 02:58:39,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:39,066 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:58:39,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-20 02:58:39,066 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:58:39,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:39,066 INFO L85 PathProgramCache]: Analyzing trace with hash 181010451, now seen corresponding path program 1 times [2023-12-20 02:58:39,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:39,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808569886] [2023-12-20 02:58:39,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:39,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:39,512 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:39,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:39,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808569886] [2023-12-20 02:58:39,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808569886] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:39,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:39,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:58:39,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764804451] [2023-12-20 02:58:39,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:39,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:58:39,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:39,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:58:39,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:58:39,513 INFO L87 Difference]: Start difference. First operand 202640 states and 262117 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:43,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:43,255 INFO L93 Difference]: Finished difference Result 547276 states and 698578 transitions. [2023-12-20 02:58:43,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 02:58:43,255 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2023-12-20 02:58:43,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:44,440 INFO L225 Difference]: With dead ends: 547276 [2023-12-20 02:58:44,440 INFO L226 Difference]: Without dead ends: 479302 [2023-12-20 02:58:44,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=736, Unknown=0, NotChecked=0, Total=992 [2023-12-20 02:58:44,612 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 4555 mSDsluCounter, 3716 mSDsCounter, 0 mSdLazyCounter, 3695 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4555 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 3721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:44,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4555 Valid, 4494 Invalid, 3721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3695 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 02:58:45,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479302 states. [2023-12-20 02:58:48,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479302 to 280778. [2023-12-20 02:58:49,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280778 states, 280777 states have (on average 1.2873205426370393) internal successors, (361450), 280777 states have internal predecessors, (361450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:49,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280778 states to 280778 states and 361450 transitions. [2023-12-20 02:58:49,967 INFO L78 Accepts]: Start accepts. Automaton has 280778 states and 361450 transitions. Word has length 118 [2023-12-20 02:58:49,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:49,967 INFO L495 AbstractCegarLoop]: Abstraction has 280778 states and 361450 transitions. [2023-12-20 02:58:49,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:49,968 INFO L276 IsEmpty]: Start isEmpty. Operand 280778 states and 361450 transitions. [2023-12-20 02:58:49,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-20 02:58:49,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:49,995 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] [2023-12-20 02:58:49,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-20 02:58:49,995 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:58:50,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:50,012 INFO L85 PathProgramCache]: Analyzing trace with hash -954055930, now seen corresponding path program 1 times [2023-12-20 02:58:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:50,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995313249] [2023-12-20 02:58:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-20 02:58:50,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:50,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995313249] [2023-12-20 02:58:50,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995313249] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:50,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:50,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:58:50,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702242265] [2023-12-20 02:58:50,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:50,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:58:50,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:50,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:58:50,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:58:50,125 INFO L87 Difference]: Start difference. First operand 280778 states and 361450 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:53,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:53,312 INFO L93 Difference]: Finished difference Result 808520 states and 1036710 transitions. [2023-12-20 02:58:53,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:58:53,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2023-12-20 02:58:53,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:54,616 INFO L225 Difference]: With dead ends: 808520 [2023-12-20 02:58:54,616 INFO L226 Difference]: Without dead ends: 529214 [2023-12-20 02:58:54,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:58:54,777 INFO L413 NwaCegarLoop]: 1210 mSDtfsCounter, 782 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:54,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 1624 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:58:55,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529214 states. [2023-12-20 02:59:00,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529214 to 446840. [2023-12-20 02:59:00,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446840 states, 446839 states have (on average 1.2686985692833437) internal successors, (566904), 446839 states have internal predecessors, (566904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:01,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446840 states to 446840 states and 566904 transitions. [2023-12-20 02:59:01,825 INFO L78 Accepts]: Start accepts. Automaton has 446840 states and 566904 transitions. Word has length 118 [2023-12-20 02:59:01,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:01,825 INFO L495 AbstractCegarLoop]: Abstraction has 446840 states and 566904 transitions. [2023-12-20 02:59:01,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:01,825 INFO L276 IsEmpty]: Start isEmpty. Operand 446840 states and 566904 transitions. [2023-12-20 02:59:01,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-20 02:59:01,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:01,852 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:59:01,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-20 02:59:01,852 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:59:01,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:01,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1112575619, now seen corresponding path program 1 times [2023-12-20 02:59:01,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:01,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343902980] [2023-12-20 02:59:01,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:01,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-20 02:59:02,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:02,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343902980] [2023-12-20 02:59:02,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343902980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:02,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:02,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:59:02,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331605502] [2023-12-20 02:59:02,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:02,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:59:02,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:02,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:59:02,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:59:02,095 INFO L87 Difference]: Start difference. First operand 446840 states and 566904 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:07,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:07,324 INFO L93 Difference]: Finished difference Result 1121156 states and 1422401 transitions. [2023-12-20 02:59:07,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:59:07,324 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2023-12-20 02:59:07,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:09,643 INFO L225 Difference]: With dead ends: 1121156 [2023-12-20 02:59:09,643 INFO L226 Difference]: Without dead ends: 981741 [2023-12-20 02:59:09,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:59:09,838 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 3730 mSDsluCounter, 2962 mSDsCounter, 0 mSdLazyCounter, 2947 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3730 SdHoareTripleChecker+Valid, 3737 SdHoareTripleChecker+Invalid, 2963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:09,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3730 Valid, 3737 Invalid, 2963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2947 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:59:10,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981741 states. [2023-12-20 02:59:18,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981741 to 446819. [2023-12-20 02:59:18,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446819 states, 446818 states have (on average 1.2687067217524808) internal successors, (566881), 446818 states have internal predecessors, (566881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:20,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446819 states to 446819 states and 566881 transitions. [2023-12-20 02:59:20,565 INFO L78 Accepts]: Start accepts. Automaton has 446819 states and 566881 transitions. Word has length 119 [2023-12-20 02:59:20,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:20,565 INFO L495 AbstractCegarLoop]: Abstraction has 446819 states and 566881 transitions. [2023-12-20 02:59:20,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:20,565 INFO L276 IsEmpty]: Start isEmpty. Operand 446819 states and 566881 transitions. [2023-12-20 02:59:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-20 02:59:20,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:20,601 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:59:20,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-20 02:59:20,601 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 02:59:20,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:20,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1577814419, now seen corresponding path program 1 times [2023-12-20 02:59:20,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:20,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342125273] [2023-12-20 02:59:20,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:20,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:20,874 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:59:20,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:20,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342125273] [2023-12-20 02:59:20,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342125273] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:59:20,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866665978] [2023-12-20 02:59:20,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:20,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:59:20,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:59:20,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:59:20,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 02:59:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:21,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-20 02:59:21,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:59:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:59:22,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:59:23,023 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:59:23,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866665978] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:59:23,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:59:23,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 13] total 30 [2023-12-20 02:59:23,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564355172] [2023-12-20 02:59:23,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:59:23,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-20 02:59:23,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:23,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-20 02:59:23,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=808, Unknown=0, NotChecked=0, Total=930 [2023-12-20 02:59:23,025 INFO L87 Difference]: Start difference. First operand 446819 states and 566881 transitions. Second operand has 31 states, 31 states have (on average 10.451612903225806) internal successors, (324), 30 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:13,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:00:13,183 INFO L93 Difference]: Finished difference Result 4722924 states and 5900167 transitions. [2023-12-20 03:00:13,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 406 states. [2023-12-20 03:00:13,185 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 10.451612903225806) internal successors, (324), 30 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2023-12-20 03:00:13,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:00:26,721 INFO L225 Difference]: With dead ends: 4722924 [2023-12-20 03:00:26,721 INFO L226 Difference]: Without dead ends: 4470994 [2023-12-20 03:00:27,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 433 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88082 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=26605, Invalid=162185, Unknown=0, NotChecked=0, Total=188790 [2023-12-20 03:00:27,898 INFO L413 NwaCegarLoop]: 1117 mSDtfsCounter, 14836 mSDsluCounter, 19771 mSDsCounter, 0 mSdLazyCounter, 19278 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14836 SdHoareTripleChecker+Valid, 20888 SdHoareTripleChecker+Invalid, 19557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 19278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:00:27,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14836 Valid, 20888 Invalid, 19557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [279 Valid, 19278 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-12-20 03:00:33,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4470994 states. [2023-12-20 03:01:12,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470994 to 768211. [2023-12-20 03:01:13,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768211 states, 768210 states have (on average 1.2671652282578982) internal successors, (973449), 768210 states have internal predecessors, (973449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:01:17,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768211 states to 768211 states and 973449 transitions. [2023-12-20 03:01:17,871 INFO L78 Accepts]: Start accepts. Automaton has 768211 states and 973449 transitions. Word has length 119 [2023-12-20 03:01:17,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:01:17,872 INFO L495 AbstractCegarLoop]: Abstraction has 768211 states and 973449 transitions. [2023-12-20 03:01:17,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.451612903225806) internal successors, (324), 30 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:01:17,872 INFO L276 IsEmpty]: Start isEmpty. Operand 768211 states and 973449 transitions. [2023-12-20 03:01:17,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-20 03:01:17,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:01:17,951 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 03:01:17,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 03:01:18,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:01:18,152 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-12-20 03:01:18,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:01:18,153 INFO L85 PathProgramCache]: Analyzing trace with hash -249081316, now seen corresponding path program 1 times [2023-12-20 03:01:18,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:01:18,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081760704] [2023-12-20 03:01:18,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:01:18,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:01:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:01:18,270 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 03:01:18,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:01:18,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081760704] [2023-12-20 03:01:18,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081760704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:01:18,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:01:18,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:01:18,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155279865] [2023-12-20 03:01:18,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:01:18,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:01:18,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:01:18,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:01:18,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:01:18,271 INFO L87 Difference]: Start difference. First operand 768211 states and 973449 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)