/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 14:05:37,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 14:05:37,392 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 14:05:37,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 14:05:37,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 14:05:37,417 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 14:05:37,418 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 14:05:37,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 14:05:37,419 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 14:05:37,421 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 14:05:37,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 14:05:37,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 14:05:37,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 14:05:37,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 14:05:37,424 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 14:05:37,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 14:05:37,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 14:05:37,424 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 14:05:37,424 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 14:05:37,424 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 14:05:37,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 14:05:37,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 14:05:37,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 14:05:37,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 14:05:37,425 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 14:05:37,426 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 14:05:37,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 14:05:37,426 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 14:05:37,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 14:05:37,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 14:05:37,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 14:05:37,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 14:05:37,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:05:37,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 14:05:37,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 14:05:37,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 14:05:37,428 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 14:05:37,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 14:05:37,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 14:05:37,429 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 14:05:37,429 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 14:05:37,429 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 14:05:37,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 14:05:37,429 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 14:05:37,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 14:05:37,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 14:05:37,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 14:05:37,632 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 14:05:37,632 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 14:05:37,633 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2023-12-21 14:05:38,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 14:05:38,999 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 14:05:39,000 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2023-12-21 14:05:39,024 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0cfc54cc/bc10fdf15b7a4a3e9394bab4bb7cc0fe/FLAG365e4b76a [2023-12-21 14:05:39,039 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0cfc54cc/bc10fdf15b7a4a3e9394bab4bb7cc0fe [2023-12-21 14:05:39,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 14:05:39,041 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 14:05:39,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 14:05:39,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 14:05:39,046 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 14:05:39,047 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:39,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9ed952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39, skipping insertion in model container [2023-12-21 14:05:39,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:39,117 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 14:05:39,368 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11561,11574] [2023-12-21 14:05:39,408 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15618,15631] [2023-12-21 14:05:39,413 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16839,16852] [2023-12-21 14:05:39,426 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17545,17558] [2023-12-21 14:05:39,434 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19131,19144] [2023-12-21 14:05:39,437 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19837,19850] [2023-12-21 14:05:39,445 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20908,20921] [2023-12-21 14:05:39,457 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23398,23411] [2023-12-21 14:05:39,466 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24107,24120] [2023-12-21 14:05:39,470 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[25144,25157] [2023-12-21 14:05:39,476 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[27082,27095] [2023-12-21 14:05:39,495 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31116,31129] [2023-12-21 14:05:39,499 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31825,31838] [2023-12-21 14:05:39,502 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32899,32912] [2023-12-21 14:05:39,519 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34874,34887] [2023-12-21 14:05:39,533 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[38255,38268] [2023-12-21 14:05:39,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:05:39,713 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 14:05:39,770 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11561,11574] [2023-12-21 14:05:39,780 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15618,15631] [2023-12-21 14:05:39,783 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16839,16852] [2023-12-21 14:05:39,785 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17545,17558] [2023-12-21 14:05:39,802 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19131,19144] [2023-12-21 14:05:39,805 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19837,19850] [2023-12-21 14:05:39,807 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20908,20921] [2023-12-21 14:05:39,812 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23398,23411] [2023-12-21 14:05:39,814 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24107,24120] [2023-12-21 14:05:39,816 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[25144,25157] [2023-12-21 14:05:39,820 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[27082,27095] [2023-12-21 14:05:39,828 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31116,31129] [2023-12-21 14:05:39,830 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31825,31838] [2023-12-21 14:05:39,833 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32899,32912] [2023-12-21 14:05:39,837 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34874,34887] [2023-12-21 14:05:39,844 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[38255,38268] [2023-12-21 14:05:39,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:05:39,939 INFO L206 MainTranslator]: Completed translation [2023-12-21 14:05:39,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39 WrapperNode [2023-12-21 14:05:39,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 14:05:39,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 14:05:39,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 14:05:39,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 14:05:39,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:39,977 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:40,046 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3751 [2023-12-21 14:05:40,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 14:05:40,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 14:05:40,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 14:05:40,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 14:05:40,054 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:40,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:40,063 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:40,103 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-21 14:05:40,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:40,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:40,125 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:40,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:40,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:40,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:40,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 14:05:40,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 14:05:40,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 14:05:40,162 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 14:05:40,163 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (1/1) ... [2023-12-21 14:05:40,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:05:40,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:05:40,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 14:05:40,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 14:05:40,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 14:05:40,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 14:05:40,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 14:05:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 14:05:40,420 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 14:05:40,422 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 14:05:41,663 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 14:05:41,706 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 14:05:41,707 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 14:05:41,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:05:41 BoogieIcfgContainer [2023-12-21 14:05:41,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 14:05:41,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 14:05:41,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 14:05:41,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 14:05:41,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:05:39" (1/3) ... [2023-12-21 14:05:41,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cd439b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:05:41, skipping insertion in model container [2023-12-21 14:05:41,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:05:39" (2/3) ... [2023-12-21 14:05:41,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cd439b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:05:41, skipping insertion in model container [2023-12-21 14:05:41,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:05:41" (3/3) ... [2023-12-21 14:05:41,714 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2023-12-21 14:05:41,725 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 14:05:41,725 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-12-21 14:05:41,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 14:05:41,782 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;@6a7bc9ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 14:05:41,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-12-21 14:05:41,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 627 states, 610 states have (on average 1.8508196721311476) internal successors, (1129), 626 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:41,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-21 14:05:41,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:41,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:41,810 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:41,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:41,815 INFO L85 PathProgramCache]: Analyzing trace with hash 533676138, now seen corresponding path program 1 times [2023-12-21 14:05:41,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:41,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435146832] [2023-12-21 14:05:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:41,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:42,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:42,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:42,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435146832] [2023-12-21 14:05:42,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435146832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:42,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:42,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:05:42,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073475710] [2023-12-21 14:05:42,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:42,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:05:42,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:42,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:05:42,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:05:42,376 INFO L87 Difference]: Start difference. First operand has 627 states, 610 states have (on average 1.8508196721311476) internal successors, (1129), 626 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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) [2023-12-21 14:05:42,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:42,743 INFO L93 Difference]: Finished difference Result 971 states and 1687 transitions. [2023-12-21 14:05:42,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:05:42,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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 [2023-12-21 14:05:42,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:42,762 INFO L225 Difference]: With dead ends: 971 [2023-12-21 14:05:42,762 INFO L226 Difference]: Without dead ends: 509 [2023-12-21 14:05:42,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:05:42,772 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 2540 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2540 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:42,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2540 Valid, 621 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:05:42,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-12-21 14:05:42,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2023-12-21 14:05:42,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 493 states have (on average 1.3022312373225151) internal successors, (642), 508 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:42,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 642 transitions. [2023-12-21 14:05:42,838 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 642 transitions. Word has length 71 [2023-12-21 14:05:42,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:42,840 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 642 transitions. [2023-12-21 14:05:42,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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) [2023-12-21 14:05:42,840 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 642 transitions. [2023-12-21 14:05:42,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-21 14:05:42,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:42,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:42,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 14:05:42,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:42,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:42,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1104820237, now seen corresponding path program 1 times [2023-12-21 14:05:42,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:42,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953941324] [2023-12-21 14:05:42,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:42,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:43,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:43,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:43,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953941324] [2023-12-21 14:05:43,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953941324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:43,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:43,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:05:43,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458739100] [2023-12-21 14:05:43,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:43,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:05:43,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:43,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:05:43,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:05:43,008 INFO L87 Difference]: Start difference. First operand 509 states and 642 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:43,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:43,220 INFO L93 Difference]: Finished difference Result 847 states and 1098 transitions. [2023-12-21 14:05:43,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:05:43,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-21 14:05:43,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:43,222 INFO L225 Difference]: With dead ends: 847 [2023-12-21 14:05:43,222 INFO L226 Difference]: Without dead ends: 442 [2023-12-21 14:05:43,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:05:43,223 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 1655 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:43,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 336 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:05:43,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-21 14:05:43,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2023-12-21 14:05:43,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 426 states have (on average 1.3286384976525822) internal successors, (566), 441 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:43,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 566 transitions. [2023-12-21 14:05:43,230 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 566 transitions. Word has length 72 [2023-12-21 14:05:43,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:43,230 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 566 transitions. [2023-12-21 14:05:43,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:43,231 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 566 transitions. [2023-12-21 14:05:43,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-21 14:05:43,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:43,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:43,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 14:05:43,232 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:43,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:43,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1559303919, now seen corresponding path program 1 times [2023-12-21 14:05:43,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:43,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122129966] [2023-12-21 14:05:43,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:43,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:43,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:43,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:43,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122129966] [2023-12-21 14:05:43,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122129966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:43,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:43,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:05:43,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156942557] [2023-12-21 14:05:43,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:43,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:05:43,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:43,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:05:43,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:05:43,346 INFO L87 Difference]: Start difference. First operand 442 states and 566 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:43,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:43,534 INFO L93 Difference]: Finished difference Result 780 states and 1021 transitions. [2023-12-21 14:05:43,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:05:43,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-21 14:05:43,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:43,536 INFO L225 Difference]: With dead ends: 780 [2023-12-21 14:05:43,536 INFO L226 Difference]: Without dead ends: 416 [2023-12-21 14:05:43,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:05:43,537 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1523 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:43,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 317 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:05:43,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2023-12-21 14:05:43,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2023-12-21 14:05:43,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 400 states have (on average 1.3375) internal successors, (535), 415 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:43,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 535 transitions. [2023-12-21 14:05:43,544 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 535 transitions. Word has length 73 [2023-12-21 14:05:43,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:43,544 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 535 transitions. [2023-12-21 14:05:43,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:43,544 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 535 transitions. [2023-12-21 14:05:43,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-21 14:05:43,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:43,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:43,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 14:05:43,545 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:43,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:43,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1409781752, now seen corresponding path program 1 times [2023-12-21 14:05:43,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:43,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996674305] [2023-12-21 14:05:43,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:43,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:43,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:43,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:43,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996674305] [2023-12-21 14:05:43,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996674305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:43,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:43,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:05:43,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076676030] [2023-12-21 14:05:43,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:43,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:05:43,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:43,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:05:43,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:05:43,629 INFO L87 Difference]: Start difference. First operand 416 states and 535 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:43,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:43,820 INFO L93 Difference]: Finished difference Result 754 states and 989 transitions. [2023-12-21 14:05:43,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:05:43,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-21 14:05:43,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:43,821 INFO L225 Difference]: With dead ends: 754 [2023-12-21 14:05:43,821 INFO L226 Difference]: Without dead ends: 397 [2023-12-21 14:05:43,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:05:43,823 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1484 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:43,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 306 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:05:43,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2023-12-21 14:05:43,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2023-12-21 14:05:43,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3464566929133859) internal successors, (513), 396 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:43,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 513 transitions. [2023-12-21 14:05:43,828 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 513 transitions. Word has length 74 [2023-12-21 14:05:43,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:43,828 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 513 transitions. [2023-12-21 14:05:43,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:43,828 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 513 transitions. [2023-12-21 14:05:43,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-21 14:05:43,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:43,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:43,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 14:05:43,830 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:43,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:43,830 INFO L85 PathProgramCache]: Analyzing trace with hash 254667180, now seen corresponding path program 1 times [2023-12-21 14:05:43,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:43,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234172907] [2023-12-21 14:05:43,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:43,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:43,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:43,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:43,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234172907] [2023-12-21 14:05:43,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234172907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:43,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:43,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:05:43,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215532768] [2023-12-21 14:05:43,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:43,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:05:43,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:43,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:05:43,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:05:43,932 INFO L87 Difference]: Start difference. First operand 397 states and 513 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:44,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:44,157 INFO L93 Difference]: Finished difference Result 735 states and 966 transitions. [2023-12-21 14:05:44,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:05:44,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-21 14:05:44,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:44,159 INFO L225 Difference]: With dead ends: 735 [2023-12-21 14:05:44,159 INFO L226 Difference]: Without dead ends: 392 [2023-12-21 14:05:44,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:05:44,160 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 1416 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:44,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 281 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:05:44,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-12-21 14:05:44,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2023-12-21 14:05:44,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3457446808510638) internal successors, (506), 391 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:44,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 506 transitions. [2023-12-21 14:05:44,165 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 506 transitions. Word has length 75 [2023-12-21 14:05:44,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:44,165 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 506 transitions. [2023-12-21 14:05:44,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:44,166 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 506 transitions. [2023-12-21 14:05:44,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 14:05:44,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:44,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:44,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 14:05:44,167 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:44,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:44,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1435179207, now seen corresponding path program 1 times [2023-12-21 14:05:44,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:44,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562239925] [2023-12-21 14:05:44,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:44,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:44,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:44,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:44,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562239925] [2023-12-21 14:05:44,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562239925] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:44,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:44,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:05:44,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239518642] [2023-12-21 14:05:44,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:44,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:05:44,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:44,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:05:44,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:05:44,441 INFO L87 Difference]: Start difference. First operand 392 states and 506 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 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) [2023-12-21 14:05:45,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:45,318 INFO L93 Difference]: Finished difference Result 826 states and 1106 transitions. [2023-12-21 14:05:45,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:05:45,319 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 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 [2023-12-21 14:05:45,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:45,322 INFO L225 Difference]: With dead ends: 826 [2023-12-21 14:05:45,322 INFO L226 Difference]: Without dead ends: 736 [2023-12-21 14:05:45,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:05:45,324 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1843 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:45,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1843 Valid, 1844 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:05:45,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-12-21 14:05:45,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 392. [2023-12-21 14:05:45,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3430851063829787) internal successors, (505), 391 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:45,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 505 transitions. [2023-12-21 14:05:45,333 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 505 transitions. Word has length 76 [2023-12-21 14:05:45,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:45,334 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 505 transitions. [2023-12-21 14:05:45,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 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) [2023-12-21 14:05:45,334 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 505 transitions. [2023-12-21 14:05:45,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 14:05:45,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:45,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:45,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 14:05:45,335 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:45,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:45,336 INFO L85 PathProgramCache]: Analyzing trace with hash 980279151, now seen corresponding path program 1 times [2023-12-21 14:05:45,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:45,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601488920] [2023-12-21 14:05:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:45,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:45,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:45,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:45,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601488920] [2023-12-21 14:05:45,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601488920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:45,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:45,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:05:45,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388482549] [2023-12-21 14:05:45,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:45,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:05:45,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:45,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:05:45,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:05:45,556 INFO L87 Difference]: Start difference. First operand 392 states and 505 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 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) [2023-12-21 14:05:46,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:46,274 INFO L93 Difference]: Finished difference Result 869 states and 1160 transitions. [2023-12-21 14:05:46,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:05:46,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 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 [2023-12-21 14:05:46,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:46,277 INFO L225 Difference]: With dead ends: 869 [2023-12-21 14:05:46,277 INFO L226 Difference]: Without dead ends: 740 [2023-12-21 14:05:46,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:05:46,278 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1416 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:46,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 1581 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:05:46,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-12-21 14:05:46,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 392. [2023-12-21 14:05:46,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3404255319148937) internal successors, (504), 391 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:46,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 504 transitions. [2023-12-21 14:05:46,286 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 504 transitions. Word has length 76 [2023-12-21 14:05:46,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:46,286 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 504 transitions. [2023-12-21 14:05:46,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 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) [2023-12-21 14:05:46,286 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 504 transitions. [2023-12-21 14:05:46,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 14:05:46,287 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:46,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:46,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 14:05:46,287 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:46,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:46,288 INFO L85 PathProgramCache]: Analyzing trace with hash -612595194, now seen corresponding path program 1 times [2023-12-21 14:05:46,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:46,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529188106] [2023-12-21 14:05:46,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:46,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:46,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:46,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:46,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529188106] [2023-12-21 14:05:46,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529188106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:46,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:46,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 14:05:46,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235651444] [2023-12-21 14:05:46,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:46,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:05:46,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:05:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:05:46,503 INFO L87 Difference]: Start difference. First operand 392 states and 504 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 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) [2023-12-21 14:05:46,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:46,892 INFO L93 Difference]: Finished difference Result 759 states and 962 transitions. [2023-12-21 14:05:46,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:05:46,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 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 [2023-12-21 14:05:46,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:46,894 INFO L225 Difference]: With dead ends: 759 [2023-12-21 14:05:46,894 INFO L226 Difference]: Without dead ends: 546 [2023-12-21 14:05:46,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:05:46,895 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 2363 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:46,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 678 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:05:46,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2023-12-21 14:05:46,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 392. [2023-12-21 14:05:46,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3377659574468086) internal successors, (503), 391 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:46,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 503 transitions. [2023-12-21 14:05:46,901 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 503 transitions. Word has length 76 [2023-12-21 14:05:46,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:46,901 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 503 transitions. [2023-12-21 14:05:46,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 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) [2023-12-21 14:05:46,901 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 503 transitions. [2023-12-21 14:05:46,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-21 14:05:46,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:46,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:46,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 14:05:46,902 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:46,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:46,903 INFO L85 PathProgramCache]: Analyzing trace with hash -988049107, now seen corresponding path program 1 times [2023-12-21 14:05:46,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:46,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803854957] [2023-12-21 14:05:46,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:46,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:47,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:47,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:47,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803854957] [2023-12-21 14:05:47,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803854957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:47,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:47,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:05:47,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013207542] [2023-12-21 14:05:47,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:47,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:05:47,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:47,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:05:47,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:05:47,084 INFO L87 Difference]: Start difference. First operand 392 states and 503 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:47,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:47,733 INFO L93 Difference]: Finished difference Result 835 states and 1112 transitions. [2023-12-21 14:05:47,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:05:47,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-21 14:05:47,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:47,735 INFO L225 Difference]: With dead ends: 835 [2023-12-21 14:05:47,735 INFO L226 Difference]: Without dead ends: 736 [2023-12-21 14:05:47,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:05:47,736 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1499 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:47,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1672 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:05:47,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-12-21 14:05:47,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 392. [2023-12-21 14:05:47,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3351063829787233) internal successors, (502), 391 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:47,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 502 transitions. [2023-12-21 14:05:47,742 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 502 transitions. Word has length 78 [2023-12-21 14:05:47,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:47,742 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 502 transitions. [2023-12-21 14:05:47,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:47,742 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 502 transitions. [2023-12-21 14:05:47,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-21 14:05:47,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:47,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:47,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 14:05:47,743 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:47,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:47,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1396894335, now seen corresponding path program 1 times [2023-12-21 14:05:47,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:47,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433896442] [2023-12-21 14:05:47,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:47,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:47,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:47,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:47,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433896442] [2023-12-21 14:05:47,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433896442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:47,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:47,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:05:47,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768718685] [2023-12-21 14:05:47,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:47,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:05:47,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:47,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:05:47,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:05:47,912 INFO L87 Difference]: Start difference. First operand 392 states and 502 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:48,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:48,584 INFO L93 Difference]: Finished difference Result 805 states and 1067 transitions. [2023-12-21 14:05:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:05:48,585 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-21 14:05:48,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:48,587 INFO L225 Difference]: With dead ends: 805 [2023-12-21 14:05:48,587 INFO L226 Difference]: Without dead ends: 728 [2023-12-21 14:05:48,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:05:48,588 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 2134 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2134 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:48,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2134 Valid, 1602 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:05:48,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2023-12-21 14:05:48,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 392. [2023-12-21 14:05:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3324468085106382) internal successors, (501), 391 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:48,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 501 transitions. [2023-12-21 14:05:48,593 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 501 transitions. Word has length 78 [2023-12-21 14:05:48,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:48,594 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 501 transitions. [2023-12-21 14:05:48,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:48,594 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 501 transitions. [2023-12-21 14:05:48,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-21 14:05:48,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:48,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:48,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 14:05:48,595 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:48,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:48,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1028792160, now seen corresponding path program 1 times [2023-12-21 14:05:48,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:48,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51547104] [2023-12-21 14:05:48,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:48,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:48,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:48,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:48,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51547104] [2023-12-21 14:05:48,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51547104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:48,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:48,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:05:48,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248633851] [2023-12-21 14:05:48,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:48,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:05:48,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:48,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:05:48,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:05:48,939 INFO L87 Difference]: Start difference. First operand 392 states and 501 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:50,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:50,205 INFO L93 Difference]: Finished difference Result 1233 states and 1679 transitions. [2023-12-21 14:05:50,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:05:50,224 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-21 14:05:50,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:50,228 INFO L225 Difference]: With dead ends: 1233 [2023-12-21 14:05:50,228 INFO L226 Difference]: Without dead ends: 1156 [2023-12-21 14:05:50,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:05:50,229 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 4501 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4501 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 1800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:50,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4501 Valid, 2026 Invalid, 1800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:05:50,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2023-12-21 14:05:50,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 396. [2023-12-21 14:05:50,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.3289473684210527) internal successors, (505), 395 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:50,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 505 transitions. [2023-12-21 14:05:50,237 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 505 transitions. Word has length 78 [2023-12-21 14:05:50,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:50,237 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 505 transitions. [2023-12-21 14:05:50,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:50,237 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 505 transitions. [2023-12-21 14:05:50,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-21 14:05:50,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:50,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:50,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 14:05:50,238 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:50,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:50,238 INFO L85 PathProgramCache]: Analyzing trace with hash -391975036, now seen corresponding path program 1 times [2023-12-21 14:05:50,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:50,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202376201] [2023-12-21 14:05:50,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:50,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:50,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:50,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:50,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202376201] [2023-12-21 14:05:50,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202376201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:50,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:50,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:05:50,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971882133] [2023-12-21 14:05:50,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:50,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:05:50,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:50,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:05:50,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:05:50,405 INFO L87 Difference]: Start difference. First operand 396 states and 505 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:51,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:51,047 INFO L93 Difference]: Finished difference Result 801 states and 1061 transitions. [2023-12-21 14:05:51,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:05:51,048 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-21 14:05:51,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:51,050 INFO L225 Difference]: With dead ends: 801 [2023-12-21 14:05:51,050 INFO L226 Difference]: Without dead ends: 728 [2023-12-21 14:05:51,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:05:51,051 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 2164 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:51,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 1550 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:05:51,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2023-12-21 14:05:51,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 396. [2023-12-21 14:05:51,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.3263157894736841) internal successors, (504), 395 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:51,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 504 transitions. [2023-12-21 14:05:51,058 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 504 transitions. Word has length 78 [2023-12-21 14:05:51,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:51,058 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 504 transitions. [2023-12-21 14:05:51,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:51,058 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 504 transitions. [2023-12-21 14:05:51,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-21 14:05:51,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:51,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:51,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 14:05:51,059 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:51,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:51,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1002682727, now seen corresponding path program 1 times [2023-12-21 14:05:51,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:51,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707497486] [2023-12-21 14:05:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:51,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:51,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:51,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707497486] [2023-12-21 14:05:51,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707497486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:51,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:51,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:05:51,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51283470] [2023-12-21 14:05:51,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:51,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:05:51,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:51,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:05:51,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:05:51,280 INFO L87 Difference]: Start difference. First operand 396 states and 504 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:52,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:52,167 INFO L93 Difference]: Finished difference Result 844 states and 1108 transitions. [2023-12-21 14:05:52,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 14:05:52,167 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-21 14:05:52,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:52,169 INFO L225 Difference]: With dead ends: 844 [2023-12-21 14:05:52,169 INFO L226 Difference]: Without dead ends: 762 [2023-12-21 14:05:52,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2023-12-21 14:05:52,170 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 2558 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:52,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2558 Valid, 2252 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:05:52,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2023-12-21 14:05:52,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 403. [2023-12-21 14:05:52,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 387 states have (on average 1.3281653746770026) internal successors, (514), 402 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:52,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 514 transitions. [2023-12-21 14:05:52,176 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 514 transitions. Word has length 78 [2023-12-21 14:05:52,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:52,176 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 514 transitions. [2023-12-21 14:05:52,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:52,176 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 514 transitions. [2023-12-21 14:05:52,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-21 14:05:52,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:52,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:52,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 14:05:52,177 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:52,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:52,178 INFO L85 PathProgramCache]: Analyzing trace with hash -909514375, now seen corresponding path program 1 times [2023-12-21 14:05:52,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:52,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126916112] [2023-12-21 14:05:52,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:52,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:52,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:52,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:52,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126916112] [2023-12-21 14:05:52,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126916112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:52,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:52,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 14:05:52,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989258411] [2023-12-21 14:05:52,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:52,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:05:52,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:52,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:05:52,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:05:52,593 INFO L87 Difference]: Start difference. First operand 403 states and 514 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:53,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:53,635 INFO L93 Difference]: Finished difference Result 1040 states and 1391 transitions. [2023-12-21 14:05:53,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 14:05:53,635 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-21 14:05:53,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:53,637 INFO L225 Difference]: With dead ends: 1040 [2023-12-21 14:05:53,637 INFO L226 Difference]: Without dead ends: 896 [2023-12-21 14:05:53,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2023-12-21 14:05:53,638 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 2483 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2483 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:53,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2483 Valid, 2630 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:05:53,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-12-21 14:05:53,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 396. [2023-12-21 14:05:53,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.3236842105263158) internal successors, (503), 395 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:53,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 503 transitions. [2023-12-21 14:05:53,644 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 503 transitions. Word has length 78 [2023-12-21 14:05:53,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:53,644 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 503 transitions. [2023-12-21 14:05:53,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:53,644 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 503 transitions. [2023-12-21 14:05:53,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-21 14:05:53,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:53,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:53,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 14:05:53,645 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:53,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:53,645 INFO L85 PathProgramCache]: Analyzing trace with hash 423246883, now seen corresponding path program 1 times [2023-12-21 14:05:53,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:53,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438195784] [2023-12-21 14:05:53,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:53,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:53,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:53,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438195784] [2023-12-21 14:05:53,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438195784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:53,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:53,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:05:53,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414922574] [2023-12-21 14:05:53,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:53,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:05:53,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:53,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:05:53,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:05:53,791 INFO L87 Difference]: Start difference. First operand 396 states and 503 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:54,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:54,449 INFO L93 Difference]: Finished difference Result 805 states and 1062 transitions. [2023-12-21 14:05:54,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:05:54,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-21 14:05:54,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:54,452 INFO L225 Difference]: With dead ends: 805 [2023-12-21 14:05:54,452 INFO L226 Difference]: Without dead ends: 728 [2023-12-21 14:05:54,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:05:54,453 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 1989 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:54,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1989 Valid, 1726 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:05:54,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2023-12-21 14:05:54,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 396. [2023-12-21 14:05:54,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.3210526315789475) internal successors, (502), 395 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:54,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 502 transitions. [2023-12-21 14:05:54,458 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 502 transitions. Word has length 78 [2023-12-21 14:05:54,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:54,458 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 502 transitions. [2023-12-21 14:05:54,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:54,458 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 502 transitions. [2023-12-21 14:05:54,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-21 14:05:54,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:54,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:54,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 14:05:54,460 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:54,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:54,460 INFO L85 PathProgramCache]: Analyzing trace with hash 832092111, now seen corresponding path program 1 times [2023-12-21 14:05:54,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:54,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307137009] [2023-12-21 14:05:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:54,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:54,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:54,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:54,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307137009] [2023-12-21 14:05:54,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307137009] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:54,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:54,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:05:54,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764636857] [2023-12-21 14:05:54,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:54,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:05:54,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:54,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:05:54,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:05:54,634 INFO L87 Difference]: Start difference. First operand 396 states and 502 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:55,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:55,547 INFO L93 Difference]: Finished difference Result 839 states and 1107 transitions. [2023-12-21 14:05:55,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:05:55,548 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-21 14:05:55,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:55,550 INFO L225 Difference]: With dead ends: 839 [2023-12-21 14:05:55,550 INFO L226 Difference]: Without dead ends: 740 [2023-12-21 14:05:55,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:05:55,551 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 1774 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 1679 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:55,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 2610 Invalid, 1682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1679 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:05:55,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-12-21 14:05:55,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 396. [2023-12-21 14:05:55,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.318421052631579) internal successors, (501), 395 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:55,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 501 transitions. [2023-12-21 14:05:55,556 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 501 transitions. Word has length 78 [2023-12-21 14:05:55,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:55,556 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 501 transitions. [2023-12-21 14:05:55,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 501 transitions. [2023-12-21 14:05:55,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-21 14:05:55,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:55,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:55,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 14:05:55,557 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:55,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:55,558 INFO L85 PathProgramCache]: Analyzing trace with hash -931365883, now seen corresponding path program 1 times [2023-12-21 14:05:55,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:55,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99395397] [2023-12-21 14:05:55,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:55,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:55,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:55,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:55,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99395397] [2023-12-21 14:05:55,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99395397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:55,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:55,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:05:55,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543323663] [2023-12-21 14:05:55,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:55,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:05:55,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:55,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:05:55,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:05:55,694 INFO L87 Difference]: Start difference. First operand 396 states and 501 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:56,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:56,432 INFO L93 Difference]: Finished difference Result 805 states and 1060 transitions. [2023-12-21 14:05:56,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:05:56,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-12-21 14:05:56,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:56,434 INFO L225 Difference]: With dead ends: 805 [2023-12-21 14:05:56,434 INFO L226 Difference]: Without dead ends: 728 [2023-12-21 14:05:56,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:05:56,435 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 1809 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 1972 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:56,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 1972 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1537 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:05:56,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2023-12-21 14:05:56,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 392. [2023-12-21 14:05:56,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3191489361702127) internal successors, (496), 391 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:56,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 496 transitions. [2023-12-21 14:05:56,440 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 496 transitions. Word has length 79 [2023-12-21 14:05:56,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:56,440 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 496 transitions. [2023-12-21 14:05:56,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:56,441 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 496 transitions. [2023-12-21 14:05:56,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:05:56,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:56,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:56,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 14:05:56,441 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:56,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:56,442 INFO L85 PathProgramCache]: Analyzing trace with hash 380495892, now seen corresponding path program 1 times [2023-12-21 14:05:56,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:56,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744429602] [2023-12-21 14:05:56,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:56,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:56,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:56,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:56,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744429602] [2023-12-21 14:05:56,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744429602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:56,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:56,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:05:56,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071978087] [2023-12-21 14:05:56,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:56,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:05:56,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:56,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:05:56,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:05:56,694 INFO L87 Difference]: Start difference. First operand 392 states and 496 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:57,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:57,353 INFO L93 Difference]: Finished difference Result 782 states and 1023 transitions. [2023-12-21 14:05:57,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:05:57,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:05:57,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:57,355 INFO L225 Difference]: With dead ends: 782 [2023-12-21 14:05:57,355 INFO L226 Difference]: Without dead ends: 712 [2023-12-21 14:05:57,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:05:57,356 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 1760 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:57,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1760 Valid, 1923 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:05:57,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2023-12-21 14:05:57,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 392. [2023-12-21 14:05:57,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3164893617021276) internal successors, (495), 391 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:57,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 495 transitions. [2023-12-21 14:05:57,362 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 495 transitions. Word has length 80 [2023-12-21 14:05:57,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:57,362 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 495 transitions. [2023-12-21 14:05:57,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 495 transitions. [2023-12-21 14:05:57,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:05:57,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:57,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:57,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 14:05:57,363 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:57,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:57,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2002274302, now seen corresponding path program 1 times [2023-12-21 14:05:57,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:57,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129471878] [2023-12-21 14:05:57,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:57,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:57,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:57,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:57,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129471878] [2023-12-21 14:05:57,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129471878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:57,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:57,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:05:57,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235121365] [2023-12-21 14:05:57,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:57,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:05:57,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:57,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:05:57,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:05:57,638 INFO L87 Difference]: Start difference. First operand 392 states and 495 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:58,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:58,898 INFO L93 Difference]: Finished difference Result 1243 states and 1681 transitions. [2023-12-21 14:05:58,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:05:58,899 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:05:58,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:58,902 INFO L225 Difference]: With dead ends: 1243 [2023-12-21 14:05:58,902 INFO L226 Difference]: Without dead ends: 1161 [2023-12-21 14:05:58,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:05:58,903 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 4335 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4335 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:58,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4335 Valid, 2139 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:05:58,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2023-12-21 14:05:58,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 396. [2023-12-21 14:05:58,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.313157894736842) internal successors, (499), 395 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:58,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 499 transitions. [2023-12-21 14:05:58,909 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 499 transitions. Word has length 80 [2023-12-21 14:05:58,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:58,910 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 499 transitions. [2023-12-21 14:05:58,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:58,910 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 499 transitions. [2023-12-21 14:05:58,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:05:58,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:58,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:58,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 14:05:58,911 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:58,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:58,911 INFO L85 PathProgramCache]: Analyzing trace with hash 891103228, now seen corresponding path program 1 times [2023-12-21 14:05:58,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:58,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185198941] [2023-12-21 14:05:58,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:58,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:05:59,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:05:59,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:05:59,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185198941] [2023-12-21 14:05:59,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185198941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:05:59,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:05:59,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:05:59,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844120572] [2023-12-21 14:05:59,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:05:59,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:05:59,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:05:59,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:05:59,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:05:59,071 INFO L87 Difference]: Start difference. First operand 396 states and 499 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:59,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:05:59,724 INFO L93 Difference]: Finished difference Result 783 states and 1023 transitions. [2023-12-21 14:05:59,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:05:59,725 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:05:59,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:05:59,728 INFO L225 Difference]: With dead ends: 783 [2023-12-21 14:05:59,728 INFO L226 Difference]: Without dead ends: 716 [2023-12-21 14:05:59,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:05:59,730 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 1756 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 1521 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:05:59,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1756 Valid, 2128 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:05:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-12-21 14:05:59,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 396. [2023-12-21 14:05:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.3105263157894738) internal successors, (498), 395 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 498 transitions. [2023-12-21 14:05:59,739 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 498 transitions. Word has length 80 [2023-12-21 14:05:59,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:05:59,740 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 498 transitions. [2023-12-21 14:05:59,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:05:59,740 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 498 transitions. [2023-12-21 14:05:59,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:05:59,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:05:59,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:05:59,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 14:05:59,741 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:05:59,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:05:59,741 INFO L85 PathProgramCache]: Analyzing trace with hash -374640683, now seen corresponding path program 1 times [2023-12-21 14:05:59,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:05:59,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584077020] [2023-12-21 14:05:59,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:05:59,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:05:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:00,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:00,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:00,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584077020] [2023-12-21 14:06:00,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584077020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:00,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:00,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:06:00,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629262943] [2023-12-21 14:06:00,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:00,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:06:00,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:00,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:06:00,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:06:00,007 INFO L87 Difference]: Start difference. First operand 396 states and 498 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:01,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:01,163 INFO L93 Difference]: Finished difference Result 1127 states and 1510 transitions. [2023-12-21 14:06:01,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:06:01,163 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:06:01,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:01,166 INFO L225 Difference]: With dead ends: 1127 [2023-12-21 14:06:01,166 INFO L226 Difference]: Without dead ends: 1057 [2023-12-21 14:06:01,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:06:01,167 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 4373 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4373 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:01,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4373 Valid, 2094 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:06:01,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2023-12-21 14:06:01,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 400. [2023-12-21 14:06:01,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.3072916666666667) internal successors, (502), 399 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:01,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 502 transitions. [2023-12-21 14:06:01,173 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 502 transitions. Word has length 80 [2023-12-21 14:06:01,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:01,173 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 502 transitions. [2023-12-21 14:06:01,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:01,173 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 502 transitions. [2023-12-21 14:06:01,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:06:01,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:01,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:01,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 14:06:01,175 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:01,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:01,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1845105563, now seen corresponding path program 1 times [2023-12-21 14:06:01,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:01,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563019942] [2023-12-21 14:06:01,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:01,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:01,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:01,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:01,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563019942] [2023-12-21 14:06:01,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563019942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:01,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:01,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:01,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903901971] [2023-12-21 14:06:01,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:01,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:01,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:01,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:01,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:01,362 INFO L87 Difference]: Start difference. First operand 400 states and 502 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:02,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:02,065 INFO L93 Difference]: Finished difference Result 783 states and 1021 transitions. [2023-12-21 14:06:02,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:06:02,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:06:02,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:02,067 INFO L225 Difference]: With dead ends: 783 [2023-12-21 14:06:02,067 INFO L226 Difference]: Without dead ends: 716 [2023-12-21 14:06:02,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:06:02,068 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 1750 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:02,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 2130 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:06:02,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-12-21 14:06:02,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 400. [2023-12-21 14:06:02,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.3046875) internal successors, (501), 399 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 501 transitions. [2023-12-21 14:06:02,073 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 501 transitions. Word has length 80 [2023-12-21 14:06:02,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:02,073 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 501 transitions. [2023-12-21 14:06:02,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:02,073 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 501 transitions. [2023-12-21 14:06:02,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:06:02,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:02,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:02,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 14:06:02,074 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:02,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:02,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1184234996, now seen corresponding path program 1 times [2023-12-21 14:06:02,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:02,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493239849] [2023-12-21 14:06:02,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:02,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:02,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:02,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:02,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493239849] [2023-12-21 14:06:02,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493239849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:02,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:02,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:06:02,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454998350] [2023-12-21 14:06:02,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:02,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:06:02,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:02,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:06:02,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:06:02,336 INFO L87 Difference]: Start difference. First operand 400 states and 501 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:03,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:03,789 INFO L93 Difference]: Finished difference Result 1062 states and 1411 transitions. [2023-12-21 14:06:03,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:06:03,789 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:06:03,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:03,792 INFO L225 Difference]: With dead ends: 1062 [2023-12-21 14:06:03,792 INFO L226 Difference]: Without dead ends: 1057 [2023-12-21 14:06:03,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:06:03,793 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 3708 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3708 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:03,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3708 Valid, 2403 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 14:06:03,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2023-12-21 14:06:03,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 404. [2023-12-21 14:06:03,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 388 states have (on average 1.3015463917525774) internal successors, (505), 403 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:03,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 505 transitions. [2023-12-21 14:06:03,799 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 505 transitions. Word has length 80 [2023-12-21 14:06:03,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:03,799 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 505 transitions. [2023-12-21 14:06:03,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:03,800 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 505 transitions. [2023-12-21 14:06:03,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:06:03,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:03,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:03,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 14:06:03,801 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:03,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:03,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1196411487, now seen corresponding path program 1 times [2023-12-21 14:06:03,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:03,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551158209] [2023-12-21 14:06:03,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:03,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:04,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:04,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:04,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551158209] [2023-12-21 14:06:04,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551158209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:04,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:04,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:06:04,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133968231] [2023-12-21 14:06:04,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:04,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:06:04,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:04,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:06:04,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:06:04,058 INFO L87 Difference]: Start difference. First operand 404 states and 505 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:05,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:05,177 INFO L93 Difference]: Finished difference Result 1121 states and 1501 transitions. [2023-12-21 14:06:05,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:06:05,177 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:06:05,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:05,186 INFO L225 Difference]: With dead ends: 1121 [2023-12-21 14:06:05,186 INFO L226 Difference]: Without dead ends: 1054 [2023-12-21 14:06:05,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:06:05,187 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 4465 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4465 SdHoareTripleChecker+Valid, 1757 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:05,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4465 Valid, 1757 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:06:05,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2023-12-21 14:06:05,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 408. [2023-12-21 14:06:05,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 392 states have (on average 1.2984693877551021) internal successors, (509), 407 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:05,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 509 transitions. [2023-12-21 14:06:05,193 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 509 transitions. Word has length 80 [2023-12-21 14:06:05,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:05,193 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 509 transitions. [2023-12-21 14:06:05,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:05,193 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 509 transitions. [2023-12-21 14:06:05,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:06:05,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:05,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:05,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 14:06:05,194 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:05,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:05,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1992159898, now seen corresponding path program 1 times [2023-12-21 14:06:05,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:05,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326233625] [2023-12-21 14:06:05,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:05,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:05,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:05,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:05,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326233625] [2023-12-21 14:06:05,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326233625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:05,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:05,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:05,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934616651] [2023-12-21 14:06:05,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:05,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:05,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:05,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:05,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:05,341 INFO L87 Difference]: Start difference. First operand 408 states and 509 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:06,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:06,035 INFO L93 Difference]: Finished difference Result 781 states and 1016 transitions. [2023-12-21 14:06:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:06:06,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:06:06,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:06,037 INFO L225 Difference]: With dead ends: 781 [2023-12-21 14:06:06,037 INFO L226 Difference]: Without dead ends: 716 [2023-12-21 14:06:06,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:06:06,038 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 1748 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 1885 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:06,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 1885 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:06:06,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-12-21 14:06:06,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 408. [2023-12-21 14:06:06,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 392 states have (on average 1.2959183673469388) internal successors, (508), 407 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:06,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 508 transitions. [2023-12-21 14:06:06,043 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 508 transitions. Word has length 80 [2023-12-21 14:06:06,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:06,043 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 508 transitions. [2023-12-21 14:06:06,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:06,043 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 508 transitions. [2023-12-21 14:06:06,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:06:06,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:06,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:06,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 14:06:06,044 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:06,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:06,045 INFO L85 PathProgramCache]: Analyzing trace with hash -144938974, now seen corresponding path program 1 times [2023-12-21 14:06:06,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:06,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848901810] [2023-12-21 14:06:06,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:06,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:06,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:06,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:06,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848901810] [2023-12-21 14:06:06,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848901810] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:06,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:06,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:06,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048614455] [2023-12-21 14:06:06,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:06,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:06,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:06,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:06,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:06,182 INFO L87 Difference]: Start difference. First operand 408 states and 508 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:06,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:06,786 INFO L93 Difference]: Finished difference Result 826 states and 1073 transitions. [2023-12-21 14:06:06,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:06:06,787 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:06:06,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:06,789 INFO L225 Difference]: With dead ends: 826 [2023-12-21 14:06:06,789 INFO L226 Difference]: Without dead ends: 744 [2023-12-21 14:06:06,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:06:06,790 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 2339 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:06,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2339 Valid, 1554 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:06:06,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2023-12-21 14:06:06,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 408. [2023-12-21 14:06:06,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 392 states have (on average 1.2933673469387754) internal successors, (507), 407 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:06,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 507 transitions. [2023-12-21 14:06:06,794 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 507 transitions. Word has length 80 [2023-12-21 14:06:06,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:06,794 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 507 transitions. [2023-12-21 14:06:06,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:06,794 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 507 transitions. [2023-12-21 14:06:06,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:06:06,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:06,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:06,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 14:06:06,795 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:06,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:06,795 INFO L85 PathProgramCache]: Analyzing trace with hash -2057136076, now seen corresponding path program 1 times [2023-12-21 14:06:06,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:06,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717131237] [2023-12-21 14:06:06,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:06,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:06,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:06,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:06,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717131237] [2023-12-21 14:06:06,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717131237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:06,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:06,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:06,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612182222] [2023-12-21 14:06:06,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:06,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:06,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:06,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:06,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:06,977 INFO L87 Difference]: Start difference. First operand 408 states and 507 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:07,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:07,497 INFO L93 Difference]: Finished difference Result 786 states and 1019 transitions. [2023-12-21 14:06:07,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:06:07,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:06:07,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:07,499 INFO L225 Difference]: With dead ends: 786 [2023-12-21 14:06:07,499 INFO L226 Difference]: Without dead ends: 716 [2023-12-21 14:06:07,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:06:07,500 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1743 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:07,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 1941 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:06:07,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-12-21 14:06:07,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 408. [2023-12-21 14:06:07,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 392 states have (on average 1.2908163265306123) internal successors, (506), 407 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:07,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 506 transitions. [2023-12-21 14:06:07,505 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 506 transitions. Word has length 80 [2023-12-21 14:06:07,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:07,505 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 506 transitions. [2023-12-21 14:06:07,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:07,505 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 506 transitions. [2023-12-21 14:06:07,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:06:07,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:07,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:07,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 14:06:07,506 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:07,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:07,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2041843904, now seen corresponding path program 1 times [2023-12-21 14:06:07,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:07,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350697044] [2023-12-21 14:06:07,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:07,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:07,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:07,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:07,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350697044] [2023-12-21 14:06:07,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350697044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:07,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:07,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:06:07,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806850735] [2023-12-21 14:06:07,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:07,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:06:07,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:07,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:06:07,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:06:07,765 INFO L87 Difference]: Start difference. First operand 408 states and 506 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:09,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:09,048 INFO L93 Difference]: Finished difference Result 1401 states and 1889 transitions. [2023-12-21 14:06:09,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:06:09,048 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:06:09,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:09,051 INFO L225 Difference]: With dead ends: 1401 [2023-12-21 14:06:09,051 INFO L226 Difference]: Without dead ends: 1296 [2023-12-21 14:06:09,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:06:09,053 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 4220 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 2389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:09,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4220 Valid, 3010 Invalid, 2389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 14:06:09,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2023-12-21 14:06:09,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 412. [2023-12-21 14:06:09,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 396 states have (on average 1.2878787878787878) internal successors, (510), 411 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:09,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 510 transitions. [2023-12-21 14:06:09,083 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 510 transitions. Word has length 80 [2023-12-21 14:06:09,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:09,083 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 510 transitions. [2023-12-21 14:06:09,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:09,084 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 510 transitions. [2023-12-21 14:06:09,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:06:09,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:09,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:09,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 14:06:09,084 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:09,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:09,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1484508438, now seen corresponding path program 1 times [2023-12-21 14:06:09,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:09,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891835204] [2023-12-21 14:06:09,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:09,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:09,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:09,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891835204] [2023-12-21 14:06:09,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891835204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:09,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:09,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:09,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063854115] [2023-12-21 14:06:09,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:09,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:09,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:09,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:09,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:09,236 INFO L87 Difference]: Start difference. First operand 412 states and 510 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:09,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:09,912 INFO L93 Difference]: Finished difference Result 725 states and 926 transitions. [2023-12-21 14:06:09,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:06:09,912 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:06:09,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:09,914 INFO L225 Difference]: With dead ends: 725 [2023-12-21 14:06:09,914 INFO L226 Difference]: Without dead ends: 720 [2023-12-21 14:06:09,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:06:09,915 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1739 mSDsluCounter, 1563 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:09,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1739 Valid, 1942 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:06:09,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2023-12-21 14:06:09,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 412. [2023-12-21 14:06:09,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 396 states have (on average 1.2853535353535352) internal successors, (509), 411 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:09,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 509 transitions. [2023-12-21 14:06:09,919 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 509 transitions. Word has length 80 [2023-12-21 14:06:09,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:09,919 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 509 transitions. [2023-12-21 14:06:09,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:09,920 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 509 transitions. [2023-12-21 14:06:09,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:06:09,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:09,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:09,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 14:06:09,920 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:09,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:09,921 INFO L85 PathProgramCache]: Analyzing trace with hash -898261756, now seen corresponding path program 1 times [2023-12-21 14:06:09,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:09,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908400661] [2023-12-21 14:06:09,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:09,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:10,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:10,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908400661] [2023-12-21 14:06:10,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908400661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:10,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:10,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:06:10,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147614229] [2023-12-21 14:06:10,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:10,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:06:10,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:10,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:06:10,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:06:10,150 INFO L87 Difference]: Start difference. First operand 412 states and 509 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:11,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:11,327 INFO L93 Difference]: Finished difference Result 1198 states and 1595 transitions. [2023-12-21 14:06:11,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:06:11,327 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:06:11,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:11,330 INFO L225 Difference]: With dead ends: 1198 [2023-12-21 14:06:11,330 INFO L226 Difference]: Without dead ends: 1181 [2023-12-21 14:06:11,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:06:11,331 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 4317 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4317 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:11,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4317 Valid, 2133 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 14:06:11,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2023-12-21 14:06:11,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 416. [2023-12-21 14:06:11,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 400 states have (on average 1.2825) internal successors, (513), 415 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:11,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 513 transitions. [2023-12-21 14:06:11,337 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 513 transitions. Word has length 80 [2023-12-21 14:06:11,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:11,337 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 513 transitions. [2023-12-21 14:06:11,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:11,338 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 513 transitions. [2023-12-21 14:06:11,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:06:11,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:11,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:11,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 14:06:11,338 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:11,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:11,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1995378919, now seen corresponding path program 1 times [2023-12-21 14:06:11,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:11,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479639067] [2023-12-21 14:06:11,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:11,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:11,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:11,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:11,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479639067] [2023-12-21 14:06:11,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479639067] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:11,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:11,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:11,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790943390] [2023-12-21 14:06:11,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:11,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:11,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:11,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:11,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:11,484 INFO L87 Difference]: Start difference. First operand 416 states and 513 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:12,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:12,165 INFO L93 Difference]: Finished difference Result 791 states and 1022 transitions. [2023-12-21 14:06:12,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:06:12,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:06:12,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:12,167 INFO L225 Difference]: With dead ends: 791 [2023-12-21 14:06:12,167 INFO L226 Difference]: Without dead ends: 724 [2023-12-21 14:06:12,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:06:12,168 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1734 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:12,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1734 Valid, 1945 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:06:12,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2023-12-21 14:06:12,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 416. [2023-12-21 14:06:12,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 400 states have (on average 1.28) internal successors, (512), 415 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:12,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 512 transitions. [2023-12-21 14:06:12,172 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 512 transitions. Word has length 80 [2023-12-21 14:06:12,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:12,172 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 512 transitions. [2023-12-21 14:06:12,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:12,172 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 512 transitions. [2023-12-21 14:06:12,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 14:06:12,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:12,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:12,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 14:06:12,173 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:12,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:12,174 INFO L85 PathProgramCache]: Analyzing trace with hash 729371863, now seen corresponding path program 1 times [2023-12-21 14:06:12,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:12,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027288641] [2023-12-21 14:06:12,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:12,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:12,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:12,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:12,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027288641] [2023-12-21 14:06:12,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027288641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:12,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:12,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:12,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744870884] [2023-12-21 14:06:12,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:12,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:12,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:12,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:12,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:12,309 INFO L87 Difference]: Start difference. First operand 416 states and 512 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:12,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:12,949 INFO L93 Difference]: Finished difference Result 729 states and 928 transitions. [2023-12-21 14:06:12,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:06:12,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-21 14:06:12,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:12,951 INFO L225 Difference]: With dead ends: 729 [2023-12-21 14:06:12,951 INFO L226 Difference]: Without dead ends: 724 [2023-12-21 14:06:12,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:06:12,951 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1980 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:12,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1980 Valid, 1665 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:06:12,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2023-12-21 14:06:12,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 416. [2023-12-21 14:06:12,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 400 states have (on average 1.2775) internal successors, (511), 415 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 511 transitions. [2023-12-21 14:06:12,956 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 511 transitions. Word has length 80 [2023-12-21 14:06:12,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:12,956 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 511 transitions. [2023-12-21 14:06:12,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:12,957 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 511 transitions. [2023-12-21 14:06:12,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 14:06:12,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:12,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:12,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 14:06:12,957 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:12,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:12,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1004873075, now seen corresponding path program 1 times [2023-12-21 14:06:12,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:12,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353734372] [2023-12-21 14:06:12,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:12,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:13,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:13,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:13,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353734372] [2023-12-21 14:06:13,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353734372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:13,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:13,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:13,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504980866] [2023-12-21 14:06:13,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:13,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:13,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:13,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:13,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:13,081 INFO L87 Difference]: Start difference. First operand 416 states and 511 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:13,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:13,529 INFO L93 Difference]: Finished difference Result 794 states and 1022 transitions. [2023-12-21 14:06:13,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:06:13,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-21 14:06:13,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:13,531 INFO L225 Difference]: With dead ends: 794 [2023-12-21 14:06:13,531 INFO L226 Difference]: Without dead ends: 724 [2023-12-21 14:06:13,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:06:13,557 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 1975 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:13,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1975 Valid, 1675 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:06:13,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2023-12-21 14:06:13,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 412. [2023-12-21 14:06:13,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 396 states have (on average 1.2777777777777777) internal successors, (506), 411 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:13,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 506 transitions. [2023-12-21 14:06:13,565 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 506 transitions. Word has length 81 [2023-12-21 14:06:13,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:13,566 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 506 transitions. [2023-12-21 14:06:13,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:13,566 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 506 transitions. [2023-12-21 14:06:13,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 14:06:13,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:13,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:13,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 14:06:13,567 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:13,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:13,567 INFO L85 PathProgramCache]: Analyzing trace with hash 105375042, now seen corresponding path program 1 times [2023-12-21 14:06:13,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:13,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842460618] [2023-12-21 14:06:13,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:13,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:13,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:13,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:13,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842460618] [2023-12-21 14:06:13,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842460618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:13,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:13,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:13,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016986583] [2023-12-21 14:06:13,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:13,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:13,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:13,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:13,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:13,690 INFO L87 Difference]: Start difference. First operand 412 states and 506 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:14,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:14,280 INFO L93 Difference]: Finished difference Result 826 states and 1065 transitions. [2023-12-21 14:06:14,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:06:14,280 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-21 14:06:14,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:14,282 INFO L225 Difference]: With dead ends: 826 [2023-12-21 14:06:14,282 INFO L226 Difference]: Without dead ends: 744 [2023-12-21 14:06:14,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:06:14,283 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 1383 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:14,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 1773 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:06:14,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2023-12-21 14:06:14,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 408. [2023-12-21 14:06:14,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 392 states have (on average 1.278061224489796) internal successors, (501), 407 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:14,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 501 transitions. [2023-12-21 14:06:14,293 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 501 transitions. Word has length 81 [2023-12-21 14:06:14,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:14,293 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 501 transitions. [2023-12-21 14:06:14,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:14,293 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 501 transitions. [2023-12-21 14:06:14,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 14:06:14,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:14,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:14,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 14:06:14,294 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:14,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:14,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2085378986, now seen corresponding path program 1 times [2023-12-21 14:06:14,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:14,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834628405] [2023-12-21 14:06:14,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:14,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:14,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:14,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834628405] [2023-12-21 14:06:14,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834628405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:14,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:14,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:14,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539406750] [2023-12-21 14:06:14,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:14,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:14,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:14,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:14,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:14,435 INFO L87 Difference]: Start difference. First operand 408 states and 501 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:15,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:15,022 INFO L93 Difference]: Finished difference Result 725 states and 920 transitions. [2023-12-21 14:06:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:06:15,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-21 14:06:15,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:15,027 INFO L225 Difference]: With dead ends: 725 [2023-12-21 14:06:15,028 INFO L226 Difference]: Without dead ends: 720 [2023-12-21 14:06:15,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:06:15,028 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 1912 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:15,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1912 Valid, 1745 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 14:06:15,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2023-12-21 14:06:15,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 404. [2023-12-21 14:06:15,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 388 states have (on average 1.2783505154639174) internal successors, (496), 403 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:15,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 496 transitions. [2023-12-21 14:06:15,033 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 496 transitions. Word has length 81 [2023-12-21 14:06:15,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:15,033 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 496 transitions. [2023-12-21 14:06:15,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:15,033 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 496 transitions. [2023-12-21 14:06:15,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 14:06:15,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:15,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:15,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 14:06:15,034 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:15,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:15,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1507957345, now seen corresponding path program 1 times [2023-12-21 14:06:15,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:15,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405435253] [2023-12-21 14:06:15,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:15,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:15,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:15,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405435253] [2023-12-21 14:06:15,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405435253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:15,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:15,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:15,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857209990] [2023-12-21 14:06:15,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:15,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:15,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:15,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:15,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:15,175 INFO L87 Difference]: Start difference. First operand 404 states and 496 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:15,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:15,611 INFO L93 Difference]: Finished difference Result 787 states and 1012 transitions. [2023-12-21 14:06:15,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:06:15,611 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-21 14:06:15,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:15,617 INFO L225 Difference]: With dead ends: 787 [2023-12-21 14:06:15,617 INFO L226 Difference]: Without dead ends: 720 [2023-12-21 14:06:15,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:06:15,618 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 1315 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:15,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1743 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:06:15,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2023-12-21 14:06:15,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 400. [2023-12-21 14:06:15,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2786458333333333) internal successors, (491), 399 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:15,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 491 transitions. [2023-12-21 14:06:15,624 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 491 transitions. Word has length 81 [2023-12-21 14:06:15,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:15,624 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 491 transitions. [2023-12-21 14:06:15,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:15,624 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 491 transitions. [2023-12-21 14:06:15,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 14:06:15,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:15,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:15,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 14:06:15,625 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:15,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:15,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1069510264, now seen corresponding path program 1 times [2023-12-21 14:06:15,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:15,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899574141] [2023-12-21 14:06:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:15,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:15,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:15,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899574141] [2023-12-21 14:06:15,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899574141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:15,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:15,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:15,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428448479] [2023-12-21 14:06:15,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:15,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:15,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:15,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:15,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:15,783 INFO L87 Difference]: Start difference. First operand 400 states and 491 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:16,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:16,287 INFO L93 Difference]: Finished difference Result 845 states and 1092 transitions. [2023-12-21 14:06:16,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:06:16,288 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-21 14:06:16,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:16,289 INFO L225 Difference]: With dead ends: 845 [2023-12-21 14:06:16,289 INFO L226 Difference]: Without dead ends: 740 [2023-12-21 14:06:16,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:06:16,289 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 1675 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:16,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1675 Valid, 2117 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:06:16,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-12-21 14:06:16,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 396. [2023-12-21 14:06:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.2789473684210526) internal successors, (486), 395 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:16,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 486 transitions. [2023-12-21 14:06:16,295 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 486 transitions. Word has length 81 [2023-12-21 14:06:16,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:16,295 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 486 transitions. [2023-12-21 14:06:16,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 486 transitions. [2023-12-21 14:06:16,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 14:06:16,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:16,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:16,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-21 14:06:16,296 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:16,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:16,296 INFO L85 PathProgramCache]: Analyzing trace with hash -29974665, now seen corresponding path program 1 times [2023-12-21 14:06:16,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:16,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133103704] [2023-12-21 14:06:16,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:16,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:16,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:16,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:16,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133103704] [2023-12-21 14:06:16,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133103704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:16,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:16,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:16,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381438227] [2023-12-21 14:06:16,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:16,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:16,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:16,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:16,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:16,509 INFO L87 Difference]: Start difference. First operand 396 states and 486 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:17,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:17,009 INFO L93 Difference]: Finished difference Result 745 states and 948 transitions. [2023-12-21 14:06:17,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 14:06:17,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-21 14:06:17,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:17,010 INFO L225 Difference]: With dead ends: 745 [2023-12-21 14:06:17,011 INFO L226 Difference]: Without dead ends: 728 [2023-12-21 14:06:17,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:06:17,011 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 1609 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:17,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1609 Valid, 2162 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:06:17,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2023-12-21 14:06:17,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 392. [2023-12-21 14:06:17,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.2792553191489362) internal successors, (481), 391 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:17,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 481 transitions. [2023-12-21 14:06:17,020 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 481 transitions. Word has length 81 [2023-12-21 14:06:17,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:17,020 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 481 transitions. [2023-12-21 14:06:17,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:17,020 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 481 transitions. [2023-12-21 14:06:17,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 14:06:17,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:17,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:17,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-21 14:06:17,038 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:17,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:17,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1274155887, now seen corresponding path program 1 times [2023-12-21 14:06:17,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:17,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53350892] [2023-12-21 14:06:17,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:17,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:17,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:17,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:17,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53350892] [2023-12-21 14:06:17,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53350892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:17,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:17,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:06:17,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475772543] [2023-12-21 14:06:17,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:17,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:06:17,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:17,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:06:17,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:06:17,343 INFO L87 Difference]: Start difference. First operand 392 states and 481 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:17,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:17,899 INFO L93 Difference]: Finished difference Result 1035 states and 1322 transitions. [2023-12-21 14:06:17,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 14:06:17,900 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-21 14:06:17,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:17,901 INFO L225 Difference]: With dead ends: 1035 [2023-12-21 14:06:17,901 INFO L226 Difference]: Without dead ends: 852 [2023-12-21 14:06:17,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2023-12-21 14:06:17,901 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 2281 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:17,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2281 Valid, 2573 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:06:17,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2023-12-21 14:06:17,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 274. [2023-12-21 14:06:17,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 263 states have (on average 1.2661596958174905) internal successors, (333), 273 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:17,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 333 transitions. [2023-12-21 14:06:17,905 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 333 transitions. Word has length 82 [2023-12-21 14:06:17,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:17,905 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 333 transitions. [2023-12-21 14:06:17,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:17,905 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 333 transitions. [2023-12-21 14:06:17,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 14:06:17,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:17,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:17,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-21 14:06:17,906 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:17,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:17,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1213653297, now seen corresponding path program 1 times [2023-12-21 14:06:17,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:17,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492317381] [2023-12-21 14:06:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:17,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:18,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:18,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:18,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492317381] [2023-12-21 14:06:18,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492317381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:18,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:18,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:06:18,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733279106] [2023-12-21 14:06:18,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:18,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:06:18,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:18,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:06:18,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:06:18,246 INFO L87 Difference]: Start difference. First operand 274 states and 333 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:18,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:18,722 INFO L93 Difference]: Finished difference Result 793 states and 1055 transitions. [2023-12-21 14:06:18,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:06:18,723 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-21 14:06:18,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:18,724 INFO L225 Difference]: With dead ends: 793 [2023-12-21 14:06:18,724 INFO L226 Difference]: Without dead ends: 695 [2023-12-21 14:06:18,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-21 14:06:18,725 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 1786 mSDsluCounter, 2899 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 3643 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:18,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 3643 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:06:18,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2023-12-21 14:06:18,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 241. [2023-12-21 14:06:18,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 233 states have (on average 1.257510729613734) internal successors, (293), 240 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:18,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 293 transitions. [2023-12-21 14:06:18,728 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 293 transitions. Word has length 82 [2023-12-21 14:06:18,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:18,728 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 293 transitions. [2023-12-21 14:06:18,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:18,728 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 293 transitions. [2023-12-21 14:06:18,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 14:06:18,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:18,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:18,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-21 14:06:18,729 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:18,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:18,729 INFO L85 PathProgramCache]: Analyzing trace with hash -910264626, now seen corresponding path program 1 times [2023-12-21 14:06:18,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:18,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060442721] [2023-12-21 14:06:18,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:18,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:19,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:19,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060442721] [2023-12-21 14:06:19,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060442721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:19,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:19,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2023-12-21 14:06:19,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852788155] [2023-12-21 14:06:19,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:19,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-21 14:06:19,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:19,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-21 14:06:19,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-21 14:06:19,921 INFO L87 Difference]: Start difference. First operand 241 states and 293 transitions. Second operand has 29 states, 29 states have (on average 2.8275862068965516) internal successors, (82), 28 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:23,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:23,232 INFO L93 Difference]: Finished difference Result 1005 states and 1282 transitions. [2023-12-21 14:06:23,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-21 14:06:23,233 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.8275862068965516) internal successors, (82), 28 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-21 14:06:23,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:23,234 INFO L225 Difference]: With dead ends: 1005 [2023-12-21 14:06:23,234 INFO L226 Difference]: Without dead ends: 936 [2023-12-21 14:06:23,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=404, Invalid=2248, Unknown=0, NotChecked=0, Total=2652 [2023-12-21 14:06:23,235 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 2907 mSDsluCounter, 9504 mSDsCounter, 0 mSdLazyCounter, 5884 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 10213 SdHoareTripleChecker+Invalid, 5885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:23,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2907 Valid, 10213 Invalid, 5885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5884 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 14:06:23,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2023-12-21 14:06:23,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 261. [2023-12-21 14:06:23,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 253 states have (on average 1.2648221343873518) internal successors, (320), 260 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:23,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 320 transitions. [2023-12-21 14:06:23,249 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 320 transitions. Word has length 82 [2023-12-21 14:06:23,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:23,249 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 320 transitions. [2023-12-21 14:06:23,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.8275862068965516) internal successors, (82), 28 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:23,250 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 320 transitions. [2023-12-21 14:06:23,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 14:06:23,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:23,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:23,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-21 14:06:23,250 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:23,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:23,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1175029773, now seen corresponding path program 1 times [2023-12-21 14:06:23,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:23,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259791710] [2023-12-21 14:06:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:23,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:23,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:23,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259791710] [2023-12-21 14:06:23,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259791710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:23,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:23,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-21 14:06:23,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282767289] [2023-12-21 14:06:23,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:23,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 14:06:23,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:23,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 14:06:23,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2023-12-21 14:06:23,905 INFO L87 Difference]: Start difference. First operand 261 states and 320 transitions. Second operand has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:25,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:25,204 INFO L93 Difference]: Finished difference Result 779 states and 1020 transitions. [2023-12-21 14:06:25,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 14:06:25,204 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-21 14:06:25,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:25,205 INFO L225 Difference]: With dead ends: 779 [2023-12-21 14:06:25,206 INFO L226 Difference]: Without dead ends: 655 [2023-12-21 14:06:25,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=907, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 14:06:25,207 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 1946 mSDsluCounter, 6213 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 6762 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:25,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 6762 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:06:25,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2023-12-21 14:06:25,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 266. [2023-12-21 14:06:25,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 258 states have (on average 1.2635658914728682) internal successors, (326), 265 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:25,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 326 transitions. [2023-12-21 14:06:25,211 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 326 transitions. Word has length 82 [2023-12-21 14:06:25,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:25,211 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 326 transitions. [2023-12-21 14:06:25,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:25,211 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 326 transitions. [2023-12-21 14:06:25,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 14:06:25,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:25,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:25,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-21 14:06:25,212 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:25,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:25,212 INFO L85 PathProgramCache]: Analyzing trace with hash -353750702, now seen corresponding path program 1 times [2023-12-21 14:06:25,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:25,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655740359] [2023-12-21 14:06:25,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:25,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:25,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:25,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:25,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655740359] [2023-12-21 14:06:25,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655740359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:25,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:25,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 14:06:25,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961886779] [2023-12-21 14:06:25,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:25,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 14:06:25,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:25,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 14:06:25,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2023-12-21 14:06:25,803 INFO L87 Difference]: Start difference. First operand 266 states and 326 transitions. Second operand has 16 states, 16 states have (on average 5.1875) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:27,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:27,471 INFO L93 Difference]: Finished difference Result 906 states and 1156 transitions. [2023-12-21 14:06:27,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 14:06:27,472 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.1875) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-21 14:06:27,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:27,473 INFO L225 Difference]: With dead ends: 906 [2023-12-21 14:06:27,473 INFO L226 Difference]: Without dead ends: 837 [2023-12-21 14:06:27,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 14:06:27,474 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 3655 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3655 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:27,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3655 Valid, 3323 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 14:06:27,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2023-12-21 14:06:27,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 272. [2023-12-21 14:06:27,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 264 states have (on average 1.2613636363636365) internal successors, (333), 271 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:27,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 333 transitions. [2023-12-21 14:06:27,478 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 333 transitions. Word has length 83 [2023-12-21 14:06:27,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:27,478 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 333 transitions. [2023-12-21 14:06:27,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.1875) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:27,478 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 333 transitions. [2023-12-21 14:06:27,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 14:06:27,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:27,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:27,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-21 14:06:27,479 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:27,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:27,479 INFO L85 PathProgramCache]: Analyzing trace with hash -618515849, now seen corresponding path program 1 times [2023-12-21 14:06:27,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:27,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276149684] [2023-12-21 14:06:27,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:27,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:27,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:27,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276149684] [2023-12-21 14:06:27,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276149684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:27,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:27,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:06:27,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760192678] [2023-12-21 14:06:27,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:27,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:06:27,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:27,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:06:27,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:06:27,774 INFO L87 Difference]: Start difference. First operand 272 states and 333 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2023-12-21 14:06:28,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:28,236 INFO L93 Difference]: Finished difference Result 654 states and 855 transitions. [2023-12-21 14:06:28,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:06:28,236 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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 [2023-12-21 14:06:28,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:28,237 INFO L225 Difference]: With dead ends: 654 [2023-12-21 14:06:28,237 INFO L226 Difference]: Without dead ends: 522 [2023-12-21 14:06:28,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-21 14:06:28,238 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 1116 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 3524 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:28,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 3524 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:06:28,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-12-21 14:06:28,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 205. [2023-12-21 14:06:28,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 201 states have (on average 1.2587064676616915) internal successors, (253), 204 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:28,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 253 transitions. [2023-12-21 14:06:28,241 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 253 transitions. Word has length 83 [2023-12-21 14:06:28,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:28,241 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 253 transitions. [2023-12-21 14:06:28,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2023-12-21 14:06:28,241 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 253 transitions. [2023-12-21 14:06:28,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 14:06:28,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:28,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:28,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-21 14:06:28,241 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:28,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:28,242 INFO L85 PathProgramCache]: Analyzing trace with hash -669735133, now seen corresponding path program 1 times [2023-12-21 14:06:28,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:28,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440708783] [2023-12-21 14:06:28,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:28,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:28,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:28,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:28,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440708783] [2023-12-21 14:06:28,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440708783] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:28,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:28,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:06:28,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372851651] [2023-12-21 14:06:28,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:28,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:06:28,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:28,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:06:28,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:06:28,537 INFO L87 Difference]: Start difference. First operand 205 states and 253 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2023-12-21 14:06:28,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:28,908 INFO L93 Difference]: Finished difference Result 362 states and 471 transitions. [2023-12-21 14:06:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 14:06:28,909 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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 [2023-12-21 14:06:28,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:28,909 INFO L225 Difference]: With dead ends: 362 [2023-12-21 14:06:28,909 INFO L226 Difference]: Without dead ends: 293 [2023-12-21 14:06:28,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:06:28,910 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1014 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:28,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 1340 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:06:28,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-21 14:06:28,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 174. [2023-12-21 14:06:28,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 171 states have (on average 1.2456140350877194) internal successors, (213), 173 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 213 transitions. [2023-12-21 14:06:28,912 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 213 transitions. Word has length 83 [2023-12-21 14:06:28,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:28,912 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 213 transitions. [2023-12-21 14:06:28,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2023-12-21 14:06:28,913 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 213 transitions. [2023-12-21 14:06:28,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 14:06:28,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:28,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:28,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-21 14:06:28,913 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:28,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:28,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1732888836, now seen corresponding path program 1 times [2023-12-21 14:06:28,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:28,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738034813] [2023-12-21 14:06:28,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:28,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:29,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:29,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738034813] [2023-12-21 14:06:29,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738034813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:29,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:29,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:29,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152989327] [2023-12-21 14:06:29,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:29,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:29,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:29,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:29,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:29,061 INFO L87 Difference]: Start difference. First operand 174 states and 213 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 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) [2023-12-21 14:06:29,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:29,348 INFO L93 Difference]: Finished difference Result 267 states and 337 transitions. [2023-12-21 14:06:29,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 14:06:29,348 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 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 [2023-12-21 14:06:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:29,349 INFO L225 Difference]: With dead ends: 267 [2023-12-21 14:06:29,349 INFO L226 Difference]: Without dead ends: 260 [2023-12-21 14:06:29,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-21 14:06:29,349 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 642 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:29,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 661 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:06:29,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-21 14:06:29,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 174. [2023-12-21 14:06:29,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 171 states have (on average 1.239766081871345) internal successors, (212), 173 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:29,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 212 transitions. [2023-12-21 14:06:29,351 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 212 transitions. Word has length 83 [2023-12-21 14:06:29,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:29,351 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 212 transitions. [2023-12-21 14:06:29,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 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) [2023-12-21 14:06:29,352 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 212 transitions. [2023-12-21 14:06:29,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 14:06:29,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:29,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:29,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-21 14:06:29,352 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:29,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:29,352 INFO L85 PathProgramCache]: Analyzing trace with hash 956701402, now seen corresponding path program 1 times [2023-12-21 14:06:29,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:29,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178911910] [2023-12-21 14:06:29,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:29,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:29,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:29,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:29,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178911910] [2023-12-21 14:06:29,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178911910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:29,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:29,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:06:29,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650697724] [2023-12-21 14:06:29,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:29,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 14:06:29,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:29,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 14:06:29,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:06:29,575 INFO L87 Difference]: Start difference. First operand 174 states and 212 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 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) [2023-12-21 14:06:30,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:30,255 INFO L93 Difference]: Finished difference Result 927 states and 1278 transitions. [2023-12-21 14:06:30,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 14:06:30,256 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 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 [2023-12-21 14:06:30,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:30,257 INFO L225 Difference]: With dead ends: 927 [2023-12-21 14:06:30,257 INFO L226 Difference]: Without dead ends: 844 [2023-12-21 14:06:30,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2023-12-21 14:06:30,258 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 2946 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2946 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:30,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2946 Valid, 1252 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 14:06:30,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2023-12-21 14:06:30,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 178. [2023-12-21 14:06:30,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 175 states have (on average 1.2342857142857142) internal successors, (216), 177 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:30,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 216 transitions. [2023-12-21 14:06:30,262 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 216 transitions. Word has length 83 [2023-12-21 14:06:30,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:30,262 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 216 transitions. [2023-12-21 14:06:30,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 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) [2023-12-21 14:06:30,262 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 216 transitions. [2023-12-21 14:06:30,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 14:06:30,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:30,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:30,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-21 14:06:30,263 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:30,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:30,264 INFO L85 PathProgramCache]: Analyzing trace with hash -176818907, now seen corresponding path program 1 times [2023-12-21 14:06:30,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:30,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101210099] [2023-12-21 14:06:30,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:30,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:30,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:30,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101210099] [2023-12-21 14:06:30,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101210099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:30,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:30,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:30,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144951798] [2023-12-21 14:06:30,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:30,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:06:30,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:30,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:06:30,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:06:30,410 INFO L87 Difference]: Start difference. First operand 178 states and 216 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 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) [2023-12-21 14:06:30,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:30,728 INFO L93 Difference]: Finished difference Result 361 states and 465 transitions. [2023-12-21 14:06:30,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:06:30,728 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 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 [2023-12-21 14:06:30,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:30,729 INFO L225 Difference]: With dead ends: 361 [2023-12-21 14:06:30,729 INFO L226 Difference]: Without dead ends: 278 [2023-12-21 14:06:30,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-21 14:06:30,730 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 766 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:30,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 685 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:06:30,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2023-12-21 14:06:30,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 174. [2023-12-21 14:06:30,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 171 states have (on average 1.2339181286549707) internal successors, (211), 173 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:30,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 211 transitions. [2023-12-21 14:06:30,732 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 211 transitions. Word has length 84 [2023-12-21 14:06:30,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:30,732 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 211 transitions. [2023-12-21 14:06:30,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 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) [2023-12-21 14:06:30,732 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 211 transitions. [2023-12-21 14:06:30,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 14:06:30,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:30,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:30,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-21 14:06:30,733 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:30,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:30,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1737767892, now seen corresponding path program 1 times [2023-12-21 14:06:30,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:30,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444061247] [2023-12-21 14:06:30,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:30,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:31,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:31,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:31,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444061247] [2023-12-21 14:06:31,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444061247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:31,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:31,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-21 14:06:31,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590970334] [2023-12-21 14:06:31,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:31,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-21 14:06:31,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:31,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-21 14:06:31,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2023-12-21 14:06:31,890 INFO L87 Difference]: Start difference. First operand 174 states and 211 transitions. Second operand has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 27 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:34,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:34,684 INFO L93 Difference]: Finished difference Result 703 states and 908 transitions. [2023-12-21 14:06:34,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-21 14:06:34,684 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 27 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-21 14:06:34,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:34,685 INFO L225 Difference]: With dead ends: 703 [2023-12-21 14:06:34,685 INFO L226 Difference]: Without dead ends: 695 [2023-12-21 14:06:34,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=395, Invalid=2055, Unknown=0, NotChecked=0, Total=2450 [2023-12-21 14:06:34,686 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 1818 mSDsluCounter, 7929 mSDsCounter, 0 mSdLazyCounter, 3825 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1818 SdHoareTripleChecker+Valid, 8555 SdHoareTripleChecker+Invalid, 3825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:34,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1818 Valid, 8555 Invalid, 3825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3825 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 14:06:34,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2023-12-21 14:06:34,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 193. [2023-12-21 14:06:34,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 190 states have (on average 1.231578947368421) internal successors, (234), 192 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:34,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 234 transitions. [2023-12-21 14:06:34,689 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 234 transitions. Word has length 85 [2023-12-21 14:06:34,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:34,689 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 234 transitions. [2023-12-21 14:06:34,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 27 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:34,689 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 234 transitions. [2023-12-21 14:06:34,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 14:06:34,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:34,690 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] [2023-12-21 14:06:34,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-21 14:06:34,690 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:34,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:34,690 INFO L85 PathProgramCache]: Analyzing trace with hash 2073632219, now seen corresponding path program 1 times [2023-12-21 14:06:34,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:34,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997929710] [2023-12-21 14:06:34,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:34,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:35,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:35,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997929710] [2023-12-21 14:06:35,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997929710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:35,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:35,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-21 14:06:35,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008744844] [2023-12-21 14:06:35,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:35,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-21 14:06:35,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:35,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-21 14:06:35,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2023-12-21 14:06:35,732 INFO L87 Difference]: Start difference. First operand 193 states and 234 transitions. Second operand has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 27 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:38,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:38,683 INFO L93 Difference]: Finished difference Result 839 states and 1107 transitions. [2023-12-21 14:06:38,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-21 14:06:38,684 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 27 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-21 14:06:38,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:38,685 INFO L225 Difference]: With dead ends: 839 [2023-12-21 14:06:38,685 INFO L226 Difference]: Without dead ends: 833 [2023-12-21 14:06:38,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=396, Invalid=2054, Unknown=0, NotChecked=0, Total=2450 [2023-12-21 14:06:38,686 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 2025 mSDsluCounter, 8527 mSDsCounter, 0 mSdLazyCounter, 4486 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 9180 SdHoareTripleChecker+Invalid, 4492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:38,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 9180 Invalid, 4492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4486 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 14:06:38,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2023-12-21 14:06:38,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 199. [2023-12-21 14:06:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 196 states have (on average 1.2346938775510203) internal successors, (242), 198 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 242 transitions. [2023-12-21 14:06:38,689 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 242 transitions. Word has length 85 [2023-12-21 14:06:38,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:38,689 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 242 transitions. [2023-12-21 14:06:38,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 27 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:38,689 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 242 transitions. [2023-12-21 14:06:38,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 14:06:38,689 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:38,690 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] [2023-12-21 14:06:38,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-21 14:06:38,690 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:38,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:38,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1205220568, now seen corresponding path program 1 times [2023-12-21 14:06:38,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:38,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217362038] [2023-12-21 14:06:38,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:38,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:39,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:39,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:39,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217362038] [2023-12-21 14:06:39,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217362038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:39,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:39,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 14:06:39,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320698870] [2023-12-21 14:06:39,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:39,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 14:06:39,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:39,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 14:06:39,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:06:39,065 INFO L87 Difference]: Start difference. First operand 199 states and 242 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:39,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:39,796 INFO L93 Difference]: Finished difference Result 587 states and 788 transitions. [2023-12-21 14:06:39,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 14:06:39,797 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-21 14:06:39,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:39,798 INFO L225 Difference]: With dead ends: 587 [2023-12-21 14:06:39,798 INFO L226 Difference]: Without dead ends: 572 [2023-12-21 14:06:39,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-21 14:06:39,798 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 1217 mSDsluCounter, 3296 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 3783 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:39,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 3783 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 14:06:39,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-12-21 14:06:39,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 183. [2023-12-21 14:06:39,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 181 states have (on average 1.2375690607734806) internal successors, (224), 182 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:39,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 224 transitions. [2023-12-21 14:06:39,801 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 224 transitions. Word has length 86 [2023-12-21 14:06:39,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:39,801 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 224 transitions. [2023-12-21 14:06:39,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:39,802 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 224 transitions. [2023-12-21 14:06:39,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 14:06:39,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:39,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:39,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-21 14:06:39,803 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:39,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:39,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1688787753, now seen corresponding path program 1 times [2023-12-21 14:06:39,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:39,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075344344] [2023-12-21 14:06:39,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:39,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:40,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:40,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:40,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075344344] [2023-12-21 14:06:40,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075344344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:40,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:40,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 14:06:40,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661504192] [2023-12-21 14:06:40,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:40,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 14:06:40,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:40,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 14:06:40,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2023-12-21 14:06:40,342 INFO L87 Difference]: Start difference. First operand 183 states and 224 transitions. Second operand has 16 states, 16 states have (on average 5.375) internal successors, (86), 15 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:42,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:42,229 INFO L93 Difference]: Finished difference Result 1196 states and 1666 transitions. [2023-12-21 14:06:42,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-21 14:06:42,229 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.375) internal successors, (86), 15 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-21 14:06:42,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:42,231 INFO L225 Difference]: With dead ends: 1196 [2023-12-21 14:06:42,231 INFO L226 Difference]: Without dead ends: 1190 [2023-12-21 14:06:42,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=417, Invalid=1475, Unknown=0, NotChecked=0, Total=1892 [2023-12-21 14:06:42,232 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 1992 mSDsluCounter, 5195 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 5808 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:42,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 5808 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1560 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 14:06:42,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2023-12-21 14:06:42,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 196. [2023-12-21 14:06:42,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 194 states have (on average 1.231958762886598) internal successors, (239), 195 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:42,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 239 transitions. [2023-12-21 14:06:42,237 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 239 transitions. Word has length 86 [2023-12-21 14:06:42,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:42,237 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 239 transitions. [2023-12-21 14:06:42,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.375) internal successors, (86), 15 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:42,237 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 239 transitions. [2023-12-21 14:06:42,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 14:06:42,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:42,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:42,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-21 14:06:42,237 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:42,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:42,238 INFO L85 PathProgramCache]: Analyzing trace with hash -612658842, now seen corresponding path program 1 times [2023-12-21 14:06:42,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:42,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402203400] [2023-12-21 14:06:42,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:42,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:42,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:42,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:42,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402203400] [2023-12-21 14:06:42,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402203400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:42,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:42,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 14:06:42,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139207366] [2023-12-21 14:06:42,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:42,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:06:42,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:42,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:06:42,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:06:42,556 INFO L87 Difference]: Start difference. First operand 196 states and 239 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:42,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:42,932 INFO L93 Difference]: Finished difference Result 424 states and 562 transitions. [2023-12-21 14:06:42,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 14:06:42,932 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-21 14:06:42,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:42,933 INFO L225 Difference]: With dead ends: 424 [2023-12-21 14:06:42,933 INFO L226 Difference]: Without dead ends: 418 [2023-12-21 14:06:42,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-21 14:06:42,935 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 1034 mSDsluCounter, 1872 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:42,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 2312 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:06:42,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2023-12-21 14:06:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 156. [2023-12-21 14:06:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 1.238709677419355) internal successors, (192), 155 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:42,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 192 transitions. [2023-12-21 14:06:42,937 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 192 transitions. Word has length 86 [2023-12-21 14:06:42,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:42,937 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 192 transitions. [2023-12-21 14:06:42,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:42,938 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 192 transitions. [2023-12-21 14:06:42,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 14:06:42,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:42,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:42,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-21 14:06:42,939 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:42,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:42,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1814457043, now seen corresponding path program 1 times [2023-12-21 14:06:42,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:42,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924452784] [2023-12-21 14:06:42,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:42,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:43,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:43,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924452784] [2023-12-21 14:06:43,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924452784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:43,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:43,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:43,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866530664] [2023-12-21 14:06:43,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:43,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:06:43,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:43,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:06:43,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:06:43,031 INFO L87 Difference]: Start difference. First operand 156 states and 192 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:43,145 INFO L93 Difference]: Finished difference Result 806 states and 1142 transitions. [2023-12-21 14:06:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 14:06:43,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2023-12-21 14:06:43,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:43,147 INFO L225 Difference]: With dead ends: 806 [2023-12-21 14:06:43,147 INFO L226 Difference]: Without dead ends: 741 [2023-12-21 14:06:43,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-12-21 14:06:43,147 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1268 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:43,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1268 Valid, 2155 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:06:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2023-12-21 14:06:43,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 219. [2023-12-21 14:06:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.3027522935779816) internal successors, (284), 218 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 284 transitions. [2023-12-21 14:06:43,151 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 284 transitions. Word has length 113 [2023-12-21 14:06:43,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:43,151 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 284 transitions. [2023-12-21 14:06:43,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,151 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 284 transitions. [2023-12-21 14:06:43,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 14:06:43,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:43,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:43,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-21 14:06:43,152 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:43,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:43,152 INFO L85 PathProgramCache]: Analyzing trace with hash -905960125, now seen corresponding path program 1 times [2023-12-21 14:06:43,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:43,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772343302] [2023-12-21 14:06:43,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:43,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:43,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:43,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:43,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772343302] [2023-12-21 14:06:43,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772343302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:43,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:43,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:43,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283864921] [2023-12-21 14:06:43,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:43,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:06:43,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:43,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:06:43,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:06:43,241 INFO L87 Difference]: Start difference. First operand 219 states and 284 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:43,319 INFO L93 Difference]: Finished difference Result 924 states and 1312 transitions. [2023-12-21 14:06:43,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 14:06:43,319 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-21 14:06:43,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:43,320 INFO L225 Difference]: With dead ends: 924 [2023-12-21 14:06:43,320 INFO L226 Difference]: Without dead ends: 796 [2023-12-21 14:06:43,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:06:43,321 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 1033 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:43,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 1225 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:06:43,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2023-12-21 14:06:43,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 345. [2023-12-21 14:06:43,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 1.3633720930232558) internal successors, (469), 344 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 469 transitions. [2023-12-21 14:06:43,331 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 469 transitions. Word has length 115 [2023-12-21 14:06:43,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:43,331 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 469 transitions. [2023-12-21 14:06:43,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,331 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 469 transitions. [2023-12-21 14:06:43,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 14:06:43,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:43,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:43,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-21 14:06:43,332 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:43,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:43,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1541513731, now seen corresponding path program 1 times [2023-12-21 14:06:43,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:43,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135016778] [2023-12-21 14:06:43,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:43,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:43,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:43,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:43,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135016778] [2023-12-21 14:06:43,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135016778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:43,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:43,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:43,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740996324] [2023-12-21 14:06:43,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:43,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:06:43,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:43,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:06:43,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:06:43,427 INFO L87 Difference]: Start difference. First operand 345 states and 469 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:43,523 INFO L93 Difference]: Finished difference Result 1050 states and 1497 transitions. [2023-12-21 14:06:43,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 14:06:43,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-21 14:06:43,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:43,525 INFO L225 Difference]: With dead ends: 1050 [2023-12-21 14:06:43,525 INFO L226 Difference]: Without dead ends: 922 [2023-12-21 14:06:43,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:06:43,525 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1033 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:43,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 1149 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:06:43,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2023-12-21 14:06:43,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 534. [2023-12-21 14:06:43,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.399624765478424) internal successors, (746), 533 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 746 transitions. [2023-12-21 14:06:43,531 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 746 transitions. Word has length 115 [2023-12-21 14:06:43,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:43,531 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 746 transitions. [2023-12-21 14:06:43,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,531 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 746 transitions. [2023-12-21 14:06:43,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 14:06:43,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:43,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:43,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-21 14:06:43,532 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:43,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:43,532 INFO L85 PathProgramCache]: Analyzing trace with hash 416762097, now seen corresponding path program 1 times [2023-12-21 14:06:43,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:43,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620026525] [2023-12-21 14:06:43,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:43,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:43,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:43,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:43,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620026525] [2023-12-21 14:06:43,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620026525] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:43,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:43,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:43,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921202953] [2023-12-21 14:06:43,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:43,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:06:43,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:43,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:06:43,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:06:43,627 INFO L87 Difference]: Start difference. First operand 534 states and 746 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:43,714 INFO L93 Difference]: Finished difference Result 1176 states and 1682 transitions. [2023-12-21 14:06:43,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 14:06:43,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-21 14:06:43,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:43,716 INFO L225 Difference]: With dead ends: 1176 [2023-12-21 14:06:43,716 INFO L226 Difference]: Without dead ends: 1048 [2023-12-21 14:06:43,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:06:43,717 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1109 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:43,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 1154 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:06:43,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2023-12-21 14:06:43,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 660. [2023-12-21 14:06:43,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 659 states have (on average 1.4127465857359636) internal successors, (931), 659 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 931 transitions. [2023-12-21 14:06:43,723 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 931 transitions. Word has length 115 [2023-12-21 14:06:43,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:43,723 INFO L495 AbstractCegarLoop]: Abstraction has 660 states and 931 transitions. [2023-12-21 14:06:43,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,723 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 931 transitions. [2023-12-21 14:06:43,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 14:06:43,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:43,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:43,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-21 14:06:43,724 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:43,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:43,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1355182732, now seen corresponding path program 1 times [2023-12-21 14:06:43,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:43,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192708326] [2023-12-21 14:06:43,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:43,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:43,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:43,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:43,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192708326] [2023-12-21 14:06:43,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192708326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:43,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:43,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:43,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922970706] [2023-12-21 14:06:43,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:43,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:06:43,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:43,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:06:43,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:06:43,863 INFO L87 Difference]: Start difference. First operand 660 states and 931 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:43,967 INFO L93 Difference]: Finished difference Result 1231 states and 1766 transitions. [2023-12-21 14:06:43,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 14:06:43,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-21 14:06:43,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:43,968 INFO L225 Difference]: With dead ends: 1231 [2023-12-21 14:06:43,968 INFO L226 Difference]: Without dead ends: 662 [2023-12-21 14:06:43,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:06:43,969 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 320 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:43,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 545 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:06:43,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2023-12-21 14:06:43,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 660. [2023-12-21 14:06:43,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 659 states have (on average 1.4051593323216995) internal successors, (926), 659 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 926 transitions. [2023-12-21 14:06:43,974 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 926 transitions. Word has length 115 [2023-12-21 14:06:43,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:43,974 INFO L495 AbstractCegarLoop]: Abstraction has 660 states and 926 transitions. [2023-12-21 14:06:43,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:43,974 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 926 transitions. [2023-12-21 14:06:43,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 14:06:43,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:43,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:43,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-21 14:06:43,975 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:43,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:43,975 INFO L85 PathProgramCache]: Analyzing trace with hash -2124475725, now seen corresponding path program 1 times [2023-12-21 14:06:43,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:43,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251261814] [2023-12-21 14:06:43,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:43,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:44,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:44,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:44,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251261814] [2023-12-21 14:06:44,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251261814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:44,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:44,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:06:44,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187852561] [2023-12-21 14:06:44,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:44,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:06:44,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:44,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:06:44,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:44,009 INFO L87 Difference]: Start difference. First operand 660 states and 926 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:44,024 INFO L93 Difference]: Finished difference Result 1740 states and 2487 transitions. [2023-12-21 14:06:44,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:06:44,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-21 14:06:44,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:44,026 INFO L225 Difference]: With dead ends: 1740 [2023-12-21 14:06:44,026 INFO L226 Difference]: Without dead ends: 1171 [2023-12-21 14:06:44,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:44,027 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 82 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:44,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 447 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:06:44,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2023-12-21 14:06:44,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1169. [2023-12-21 14:06:44,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 1168 states have (on average 1.4032534246575343) internal successors, (1639), 1168 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1639 transitions. [2023-12-21 14:06:44,036 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1639 transitions. Word has length 115 [2023-12-21 14:06:44,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:44,036 INFO L495 AbstractCegarLoop]: Abstraction has 1169 states and 1639 transitions. [2023-12-21 14:06:44,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1639 transitions. [2023-12-21 14:06:44,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 14:06:44,036 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:44,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:44,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-21 14:06:44,037 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:44,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:44,037 INFO L85 PathProgramCache]: Analyzing trace with hash -579470549, now seen corresponding path program 1 times [2023-12-21 14:06:44,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:44,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647294272] [2023-12-21 14:06:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:44,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:44,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:44,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:44,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647294272] [2023-12-21 14:06:44,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647294272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:44,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:44,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:44,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730942184] [2023-12-21 14:06:44,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:44,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:06:44,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:44,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:06:44,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:06:44,118 INFO L87 Difference]: Start difference. First operand 1169 states and 1639 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:44,220 INFO L93 Difference]: Finished difference Result 2376 states and 3365 transitions. [2023-12-21 14:06:44,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 14:06:44,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-21 14:06:44,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:44,223 INFO L225 Difference]: With dead ends: 2376 [2023-12-21 14:06:44,223 INFO L226 Difference]: Without dead ends: 2135 [2023-12-21 14:06:44,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:06:44,224 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1023 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:44,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 1210 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:06:44,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2023-12-21 14:06:44,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 1408. [2023-12-21 14:06:44,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1407 states have (on average 1.407960199004975) internal successors, (1981), 1407 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1981 transitions. [2023-12-21 14:06:44,236 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1981 transitions. Word has length 115 [2023-12-21 14:06:44,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:44,237 INFO L495 AbstractCegarLoop]: Abstraction has 1408 states and 1981 transitions. [2023-12-21 14:06:44,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1981 transitions. [2023-12-21 14:06:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 14:06:44,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:44,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:44,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-21 14:06:44,238 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:44,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:44,238 INFO L85 PathProgramCache]: Analyzing trace with hash 704311, now seen corresponding path program 1 times [2023-12-21 14:06:44,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:44,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692147687] [2023-12-21 14:06:44,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:44,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:44,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:44,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:44,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692147687] [2023-12-21 14:06:44,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692147687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:44,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:44,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:06:44,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8845016] [2023-12-21 14:06:44,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:44,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:06:44,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:44,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:06:44,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:06:44,323 INFO L87 Difference]: Start difference. First operand 1408 states and 1981 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:44,420 INFO L93 Difference]: Finished difference Result 2615 states and 3707 transitions. [2023-12-21 14:06:44,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 14:06:44,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-21 14:06:44,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:44,423 INFO L225 Difference]: With dead ends: 2615 [2023-12-21 14:06:44,423 INFO L226 Difference]: Without dead ends: 2374 [2023-12-21 14:06:44,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:06:44,424 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 965 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:44,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1324 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:06:44,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2023-12-21 14:06:44,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1647. [2023-12-21 14:06:44,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1646 states have (on average 1.411300121506683) internal successors, (2323), 1646 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2323 transitions. [2023-12-21 14:06:44,460 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2323 transitions. Word has length 115 [2023-12-21 14:06:44,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:44,460 INFO L495 AbstractCegarLoop]: Abstraction has 1647 states and 2323 transitions. [2023-12-21 14:06:44,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2323 transitions. [2023-12-21 14:06:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 14:06:44,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:44,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:44,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-21 14:06:44,461 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:44,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:44,461 INFO L85 PathProgramCache]: Analyzing trace with hash 879840784, now seen corresponding path program 1 times [2023-12-21 14:06:44,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:44,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658040925] [2023-12-21 14:06:44,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:44,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:44,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:44,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:44,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658040925] [2023-12-21 14:06:44,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658040925] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:44,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:44,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:06:44,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999375858] [2023-12-21 14:06:44,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:44,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:06:44,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:44,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:06:44,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:44,526 INFO L87 Difference]: Start difference. First operand 1647 states and 2323 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:44,542 INFO L93 Difference]: Finished difference Result 4122 states and 5838 transitions. [2023-12-21 14:06:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:06:44,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-21 14:06:44,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:44,547 INFO L225 Difference]: With dead ends: 4122 [2023-12-21 14:06:44,547 INFO L226 Difference]: Without dead ends: 2566 [2023-12-21 14:06:44,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:44,549 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 95 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:44,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 416 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:06:44,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states. [2023-12-21 14:06:44,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 2460. [2023-12-21 14:06:44,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2460 states, 2459 states have (on average 1.4050427002846686) internal successors, (3455), 2459 states have internal predecessors, (3455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 3455 transitions. [2023-12-21 14:06:44,570 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 3455 transitions. Word has length 116 [2023-12-21 14:06:44,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:44,571 INFO L495 AbstractCegarLoop]: Abstraction has 2460 states and 3455 transitions. [2023-12-21 14:06:44,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 3455 transitions. [2023-12-21 14:06:44,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 14:06:44,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:44,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:44,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-21 14:06:44,572 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:44,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:44,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1646779703, now seen corresponding path program 1 times [2023-12-21 14:06:44,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:44,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778004927] [2023-12-21 14:06:44,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:44,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:44,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:44,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:44,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778004927] [2023-12-21 14:06:44,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778004927] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:44,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:44,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:06:44,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923164779] [2023-12-21 14:06:44,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:44,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:06:44,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:44,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:06:44,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:44,635 INFO L87 Difference]: Start difference. First operand 2460 states and 3455 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:44,655 INFO L93 Difference]: Finished difference Result 7042 states and 9898 transitions. [2023-12-21 14:06:44,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:06:44,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-21 14:06:44,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:44,660 INFO L225 Difference]: With dead ends: 7042 [2023-12-21 14:06:44,660 INFO L226 Difference]: Without dead ends: 4673 [2023-12-21 14:06:44,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:44,663 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 88 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:44,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 416 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:06:44,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4673 states. [2023-12-21 14:06:44,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4673 to 4515. [2023-12-21 14:06:44,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4515 states, 4514 states have (on average 1.3967656180770935) internal successors, (6305), 4514 states have internal predecessors, (6305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4515 states to 4515 states and 6305 transitions. [2023-12-21 14:06:44,701 INFO L78 Accepts]: Start accepts. Automaton has 4515 states and 6305 transitions. Word has length 117 [2023-12-21 14:06:44,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:44,701 INFO L495 AbstractCegarLoop]: Abstraction has 4515 states and 6305 transitions. [2023-12-21 14:06:44,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,701 INFO L276 IsEmpty]: Start isEmpty. Operand 4515 states and 6305 transitions. [2023-12-21 14:06:44,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 14:06:44,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:44,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:44,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-21 14:06:44,702 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:44,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:44,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1685712589, now seen corresponding path program 1 times [2023-12-21 14:06:44,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:44,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900840795] [2023-12-21 14:06:44,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:44,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:44,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:44,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:44,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900840795] [2023-12-21 14:06:44,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900840795] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:44,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:44,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:06:44,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811519013] [2023-12-21 14:06:44,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:44,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:06:44,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:44,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:06:44,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:44,773 INFO L87 Difference]: Start difference. First operand 4515 states and 6305 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 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) [2023-12-21 14:06:44,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:44,802 INFO L93 Difference]: Finished difference Result 13051 states and 18175 transitions. [2023-12-21 14:06:44,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:06:44,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 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 [2023-12-21 14:06:44,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:44,812 INFO L225 Difference]: With dead ends: 13051 [2023-12-21 14:06:44,812 INFO L226 Difference]: Without dead ends: 8627 [2023-12-21 14:06:44,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:44,817 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 81 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:44,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 416 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:06:44,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8627 states. [2023-12-21 14:06:44,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8627 to 8313. [2023-12-21 14:06:44,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8313 states, 8312 states have (on average 1.3833012512030798) internal successors, (11498), 8312 states have internal predecessors, (11498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:44,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8313 states to 8313 states and 11498 transitions. [2023-12-21 14:06:44,900 INFO L78 Accepts]: Start accepts. Automaton has 8313 states and 11498 transitions. Word has length 118 [2023-12-21 14:06:44,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:44,900 INFO L495 AbstractCegarLoop]: Abstraction has 8313 states and 11498 transitions. [2023-12-21 14:06:44,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 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) [2023-12-21 14:06:44,900 INFO L276 IsEmpty]: Start isEmpty. Operand 8313 states and 11498 transitions. [2023-12-21 14:06:44,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-21 14:06:44,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:44,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:44,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-21 14:06:44,901 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:44,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:44,901 INFO L85 PathProgramCache]: Analyzing trace with hash 800829190, now seen corresponding path program 1 times [2023-12-21 14:06:44,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:44,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347110230] [2023-12-21 14:06:44,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:44,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:44,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:44,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:44,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347110230] [2023-12-21 14:06:44,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347110230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:44,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:44,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:06:44,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12403318] [2023-12-21 14:06:44,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:44,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:06:44,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:44,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:06:44,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:44,963 INFO L87 Difference]: Start difference. First operand 8313 states and 11498 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:45,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:45,042 INFO L93 Difference]: Finished difference Result 24133 states and 33208 transitions. [2023-12-21 14:06:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:06:45,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have 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 [2023-12-21 14:06:45,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:45,057 INFO L225 Difference]: With dead ends: 24133 [2023-12-21 14:06:45,057 INFO L226 Difference]: Without dead ends: 15911 [2023-12-21 14:06:45,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:45,063 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 74 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:45,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 415 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:06:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15911 states. [2023-12-21 14:06:45,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15911 to 15285. [2023-12-21 14:06:45,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15285 states, 15284 states have (on average 1.3654802407746662) internal successors, (20870), 15284 states have internal predecessors, (20870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:45,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15285 states to 15285 states and 20870 transitions. [2023-12-21 14:06:45,208 INFO L78 Accepts]: Start accepts. Automaton has 15285 states and 20870 transitions. Word has length 119 [2023-12-21 14:06:45,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:45,208 INFO L495 AbstractCegarLoop]: Abstraction has 15285 states and 20870 transitions. [2023-12-21 14:06:45,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:45,208 INFO L276 IsEmpty]: Start isEmpty. Operand 15285 states and 20870 transitions. [2023-12-21 14:06:45,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 14:06:45,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:45,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:45,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-21 14:06:45,209 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:45,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:45,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1494180370, now seen corresponding path program 1 times [2023-12-21 14:06:45,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:45,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888845643] [2023-12-21 14:06:45,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:45,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:45,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:45,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888845643] [2023-12-21 14:06:45,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888845643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:45,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:45,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:06:45,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771955923] [2023-12-21 14:06:45,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:45,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:06:45,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:45,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:06:45,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:45,272 INFO L87 Difference]: Start difference. First operand 15285 states and 20870 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:45,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:45,349 INFO L93 Difference]: Finished difference Result 44425 states and 60232 transitions. [2023-12-21 14:06:45,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:06:45,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-21 14:06:45,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:45,384 INFO L225 Difference]: With dead ends: 44425 [2023-12-21 14:06:45,385 INFO L226 Difference]: Without dead ends: 29231 [2023-12-21 14:06:45,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:45,404 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 64 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:45,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 413 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:06:45,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29231 states. [2023-12-21 14:06:45,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29231 to 27981. [2023-12-21 14:06:45,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27981 states, 27980 states have (on average 1.3433166547533952) internal successors, (37586), 27980 states have internal predecessors, (37586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27981 states to 27981 states and 37586 transitions. [2023-12-21 14:06:45,749 INFO L78 Accepts]: Start accepts. Automaton has 27981 states and 37586 transitions. Word has length 120 [2023-12-21 14:06:45,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:45,749 INFO L495 AbstractCegarLoop]: Abstraction has 27981 states and 37586 transitions. [2023-12-21 14:06:45,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 27981 states and 37586 transitions. [2023-12-21 14:06:45,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 14:06:45,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:45,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:45,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-21 14:06:45,750 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:45,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:45,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1337857427, now seen corresponding path program 1 times [2023-12-21 14:06:45,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:45,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201549660] [2023-12-21 14:06:45,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:45,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:45,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:45,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:45,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201549660] [2023-12-21 14:06:45,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201549660] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:45,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:45,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 14:06:45,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663655246] [2023-12-21 14:06:45,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:45,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 14:06:45,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:45,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 14:06:45,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 14:06:45,867 INFO L87 Difference]: Start difference. First operand 27981 states and 37586 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:45,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:45,987 INFO L93 Difference]: Finished difference Result 43389 states and 58098 transitions. [2023-12-21 14:06:45,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 14:06:45,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2023-12-21 14:06:45,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:46,038 INFO L225 Difference]: With dead ends: 43389 [2023-12-21 14:06:46,038 INFO L226 Difference]: Without dead ends: 43387 [2023-12-21 14:06:46,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-21 14:06:46,053 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 311 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:46,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 976 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:06:46,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43387 states. [2023-12-21 14:06:46,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43387 to 28557. [2023-12-21 14:06:46,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28557 states, 28556 states have (on average 1.3285474156044264) internal successors, (37938), 28556 states have internal predecessors, (37938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:46,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28557 states to 28557 states and 37938 transitions. [2023-12-21 14:06:46,539 INFO L78 Accepts]: Start accepts. Automaton has 28557 states and 37938 transitions. Word has length 121 [2023-12-21 14:06:46,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:46,539 INFO L495 AbstractCegarLoop]: Abstraction has 28557 states and 37938 transitions. [2023-12-21 14:06:46,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:46,539 INFO L276 IsEmpty]: Start isEmpty. Operand 28557 states and 37938 transitions. [2023-12-21 14:06:46,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 14:06:46,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:46,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:46,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-21 14:06:46,540 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:46,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:46,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1089029553, now seen corresponding path program 1 times [2023-12-21 14:06:46,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:46,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111870777] [2023-12-21 14:06:46,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:46,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:46,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:46,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:46,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111870777] [2023-12-21 14:06:46,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111870777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:06:46,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:06:46,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:06:46,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730981553] [2023-12-21 14:06:46,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:06:46,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:06:46,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:46,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:06:46,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:46,579 INFO L87 Difference]: Start difference. First operand 28557 states and 37938 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:46,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:06:46,698 INFO L93 Difference]: Finished difference Result 57777 states and 76788 transitions. [2023-12-21 14:06:46,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:06:46,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2023-12-21 14:06:46,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:06:46,733 INFO L225 Difference]: With dead ends: 57777 [2023-12-21 14:06:46,734 INFO L226 Difference]: Without dead ends: 29311 [2023-12-21 14:06:46,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:06:46,760 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 107 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:06:46,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 343 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:06:46,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29311 states. [2023-12-21 14:06:47,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29311 to 29309. [2023-12-21 14:06:47,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29309 states, 29308 states have (on average 1.3141121877985533) internal successors, (38514), 29308 states have internal predecessors, (38514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:47,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29309 states to 29309 states and 38514 transitions. [2023-12-21 14:06:47,515 INFO L78 Accepts]: Start accepts. Automaton has 29309 states and 38514 transitions. Word has length 121 [2023-12-21 14:06:47,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:06:47,516 INFO L495 AbstractCegarLoop]: Abstraction has 29309 states and 38514 transitions. [2023-12-21 14:06:47,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:06:47,516 INFO L276 IsEmpty]: Start isEmpty. Operand 29309 states and 38514 transitions. [2023-12-21 14:06:47,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-21 14:06:47,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:06:47,520 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:06:47,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-21 14:06:47,520 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:06:47,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:06:47,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1227882138, now seen corresponding path program 1 times [2023-12-21 14:06:47,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:06:47,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269684210] [2023-12-21 14:06:47,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:47,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:06:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:48,048 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:48,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:06:48,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269684210] [2023-12-21 14:06:48,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269684210] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:06:48,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398502680] [2023-12-21 14:06:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:06:48,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:06:48,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:06:48,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:06:48,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 14:06:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:06:48,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 14:06:48,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:06:48,901 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:48,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:06:49,893 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:06:49,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398502680] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:06:49,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:06:49,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 29 [2023-12-21 14:06:49,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787691452] [2023-12-21 14:06:49,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:06:49,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-21 14:06:49,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:06:49,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-21 14:06:49,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=770, Unknown=0, NotChecked=0, Total=870 [2023-12-21 14:06:49,895 INFO L87 Difference]: Start difference. First operand 29309 states and 38514 transitions. Second operand has 30 states, 30 states have (on average 13.633333333333333) internal successors, (409), 29 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:07:45,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:07:45,791 INFO L93 Difference]: Finished difference Result 898782 states and 1158582 transitions. [2023-12-21 14:07:45,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 713 states. [2023-12-21 14:07:45,791 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 13.633333333333333) internal successors, (409), 29 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2023-12-21 14:07:45,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:07:47,476 INFO L225 Difference]: With dead ends: 898782 [2023-12-21 14:07:47,477 INFO L226 Difference]: Without dead ends: 869564 [2023-12-21 14:07:47,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1026 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 739 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253484 ImplicationChecksByTransitivity, 46.2s TimeCoverageRelationStatistics Valid=52462, Invalid=495878, Unknown=0, NotChecked=0, Total=548340 [2023-12-21 14:07:47,635 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 20764 mSDsluCounter, 7338 mSDsCounter, 0 mSdLazyCounter, 8454 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20764 SdHoareTripleChecker+Valid, 7817 SdHoareTripleChecker+Invalid, 8572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 8454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:07:47,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20764 Valid, 7817 Invalid, 8572 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [118 Valid, 8454 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-21 14:07:48,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869564 states. [2023-12-21 14:07:52,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869564 to 146070. [2023-12-21 14:07:53,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146070 states, 146069 states have (on average 1.3044656977182016) internal successors, (190542), 146069 states have internal predecessors, (190542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:07:53,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146070 states to 146070 states and 190542 transitions. [2023-12-21 14:07:53,565 INFO L78 Accepts]: Start accepts. Automaton has 146070 states and 190542 transitions. Word has length 153 [2023-12-21 14:07:53,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:07:53,565 INFO L495 AbstractCegarLoop]: Abstraction has 146070 states and 190542 transitions. [2023-12-21 14:07:53,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 13.633333333333333) internal successors, (409), 29 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:07:53,566 INFO L276 IsEmpty]: Start isEmpty. Operand 146070 states and 190542 transitions. [2023-12-21 14:07:53,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 14:07:53,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:07:53,654 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:07:53,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 14:07:53,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-12-21 14:07:53,861 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-21 14:07:53,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:07:53,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1295184161, now seen corresponding path program 1 times [2023-12-21 14:07:53,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:07:53,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565780172] [2023-12-21 14:07:53,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:07:53,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:07:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:07:54,613 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:07:54,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:07:54,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565780172] [2023-12-21 14:07:54,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565780172] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:07:54,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12332406] [2023-12-21 14:07:54,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:07:54,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:07:54,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:07:54,615 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:07:54,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 14:07:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:07:54,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 14:07:54,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:07:55,352 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:07:55,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:07:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:07:55,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12332406] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:07:55,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:07:55,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 29 [2023-12-21 14:07:55,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719235739] [2023-12-21 14:07:55,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:07:55,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-21 14:07:55,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:07:55,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-21 14:07:55,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2023-12-21 14:07:55,934 INFO L87 Difference]: Start difference. First operand 146070 states and 190542 transitions. Second operand has 29 states, 29 states have (on average 14.620689655172415) internal successors, (424), 29 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:09:52,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:09:52,941 INFO L93 Difference]: Finished difference Result 4171646 states and 5344644 transitions. [2023-12-21 14:09:52,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1594 states. [2023-12-21 14:09:52,941 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 14.620689655172415) internal successors, (424), 29 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2023-12-21 14:09:52,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:10:00,824 INFO L225 Difference]: With dead ends: 4171646 [2023-12-21 14:10:00,824 INFO L226 Difference]: Without dead ends: 4025748 [2023-12-21 14:10:01,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1910 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 1619 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1303944 ImplicationChecksByTransitivity, 91.4s TimeCoverageRelationStatistics Valid=180852, Invalid=2445168, Unknown=0, NotChecked=0, Total=2626020 [2023-12-21 14:10:01,869 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 26260 mSDsluCounter, 14607 mSDsCounter, 0 mSdLazyCounter, 13619 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26260 SdHoareTripleChecker+Valid, 15606 SdHoareTripleChecker+Invalid, 13779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 13619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:10:01,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26260 Valid, 15606 Invalid, 13779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [160 Valid, 13619 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-12-21 14:10:05,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4025748 states.