/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 03:53:35,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 03:53:35,228 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 03:53:35,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 03:53:35,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 03:53:35,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 03:53:35,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 03:53:35,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 03:53:35,254 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 03:53:35,257 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 03:53:35,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 03:53:35,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 03:53:35,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 03:53:35,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 03:53:35,259 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 03:53:35,259 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 03:53:35,259 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 03:53:35,259 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 03:53:35,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 03:53:35,260 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 03:53:35,260 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 03:53:35,261 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 03:53:35,261 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 03:53:35,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 03:53:35,261 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 03:53:35,261 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 03:53:35,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 03:53:35,261 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 03:53:35,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 03:53:35,262 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 03:53:35,263 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 03:53:35,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 03:53:35,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:53:35,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 03:53:35,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 03:53:35,263 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 03:53:35,263 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 03:53:35,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 03:53:35,263 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 03:53:35,264 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 03:53:35,264 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 03:53:35,264 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 03:53:35,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 03:53:35,265 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 03:53:35,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 03:53:35,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 03:53:35,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 03:53:35,473 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 03:53:35,473 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 03:53:35,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-20 03:53:36,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 03:53:36,765 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 03:53:36,766 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-20 03:53:36,787 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e60c510b6/c2b7db554da84e17b1e32f457b46b208/FLAGf4e8838df [2023-12-20 03:53:36,798 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e60c510b6/c2b7db554da84e17b1e32f457b46b208 [2023-12-20 03:53:36,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 03:53:36,801 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 03:53:36,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 03:53:36,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 03:53:36,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 03:53:36,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:53:36" (1/1) ... [2023-12-20 03:53:36,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199f0e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:36, skipping insertion in model container [2023-12-20 03:53:36,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:53:36" (1/1) ... [2023-12-20 03:53:36,906 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 03:53:37,370 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[34295,34308] [2023-12-20 03:53:37,390 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[35185,35198] [2023-12-20 03:53:37,405 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[36972,36985] [2023-12-20 03:53:37,415 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[37862,37875] [2023-12-20 03:53:37,437 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[40549,40562] [2023-12-20 03:53:37,448 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[41442,41455] [2023-12-20 03:53:37,467 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[43232,43245] [2023-12-20 03:53:37,486 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[44593,44606] [2023-12-20 03:53:37,589 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[60061,60074] [2023-12-20 03:53:37,599 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[60954,60967] [2023-12-20 03:53:37,613 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[62744,62757] [2023-12-20 03:53:37,651 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[67157,67170] [2023-12-20 03:53:37,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:53:37,753 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 03:53:37,928 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[34295,34308] [2023-12-20 03:53:37,936 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[35185,35198] [2023-12-20 03:53:37,949 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[36972,36985] [2023-12-20 03:53:37,957 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[37862,37875] [2023-12-20 03:53:37,975 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[40549,40562] [2023-12-20 03:53:37,983 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[41442,41455] [2023-12-20 03:53:37,996 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[43232,43245] [2023-12-20 03:53:38,007 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[44593,44606] [2023-12-20 03:53:38,080 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[60061,60074] [2023-12-20 03:53:38,089 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[60954,60967] [2023-12-20 03:53:38,102 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[62744,62757] [2023-12-20 03:53:38,130 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_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[67157,67170] [2023-12-20 03:53:38,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:53:38,207 INFO L206 MainTranslator]: Completed translation [2023-12-20 03:53:38,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38 WrapperNode [2023-12-20 03:53:38,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 03:53:38,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 03:53:38,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 03:53:38,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 03:53:38,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (1/1) ... [2023-12-20 03:53:38,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (1/1) ... [2023-12-20 03:53:38,331 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 4242 [2023-12-20 03:53:38,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 03:53:38,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 03:53:38,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 03:53:38,333 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 03:53:38,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (1/1) ... [2023-12-20 03:53:38,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (1/1) ... [2023-12-20 03:53:38,350 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (1/1) ... [2023-12-20 03:53:38,381 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 03:53:38,381 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (1/1) ... [2023-12-20 03:53:38,381 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (1/1) ... [2023-12-20 03:53:38,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (1/1) ... [2023-12-20 03:53:38,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (1/1) ... [2023-12-20 03:53:38,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (1/1) ... [2023-12-20 03:53:38,449 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (1/1) ... [2023-12-20 03:53:38,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 03:53:38,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 03:53:38,472 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 03:53:38,472 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 03:53:38,473 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (1/1) ... [2023-12-20 03:53:38,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:53:38,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:53:38,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 03:53:38,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 03:53:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 03:53:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 03:53:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 03:53:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 03:53:38,653 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 03:53:38,655 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 03:53:40,285 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 03:53:40,337 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 03:53:40,338 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 03:53:40,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:53:40 BoogieIcfgContainer [2023-12-20 03:53:40,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 03:53:40,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 03:53:40,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 03:53:40,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 03:53:40,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:53:36" (1/3) ... [2023-12-20 03:53:40,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b073fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:53:40, skipping insertion in model container [2023-12-20 03:53:40,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:53:38" (2/3) ... [2023-12-20 03:53:40,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b073fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:53:40, skipping insertion in model container [2023-12-20 03:53:40,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:53:40" (3/3) ... [2023-12-20 03:53:40,344 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-20 03:53:40,356 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 03:53:40,356 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-12-20 03:53:40,418 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 03:53:40,423 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;@3b007185, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 03:53:40,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-20 03:53:40,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 966 states, 953 states have (on average 1.819517313746065) internal successors, (1734), 965 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:40,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-12-20 03:53:40,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:53:40,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:53:40,460 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:53:40,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:53:40,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1462387186, now seen corresponding path program 1 times [2023-12-20 03:53:40,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:53:40,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222717299] [2023-12-20 03:53:40,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:53:40,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:53:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:53:41,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:53:41,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:53:41,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222717299] [2023-12-20 03:53:41,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222717299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:53:41,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:53:41,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:53:41,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976480229] [2023-12-20 03:53:41,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:53:41,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:53:41,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:53:41,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:53:41,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:41,148 INFO L87 Difference]: Start difference. First operand has 966 states, 953 states have (on average 1.819517313746065) internal successors, (1734), 965 states have internal predecessors, (1734), 0 states have call successors, (0), 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 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:41,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:53:41,428 INFO L93 Difference]: Finished difference Result 1720 states and 3068 transitions. [2023-12-20 03:53:41,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:53:41,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 309 [2023-12-20 03:53:41,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:53:41,454 INFO L225 Difference]: With dead ends: 1720 [2023-12-20 03:53:41,454 INFO L226 Difference]: Without dead ends: 1504 [2023-12-20 03:53:41,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:41,464 INFO L413 NwaCegarLoop]: 1857 mSDtfsCounter, 1017 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 3139 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:53:41,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 3139 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:53:41,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2023-12-20 03:53:41,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1502. [2023-12-20 03:53:41,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1490 states have (on average 1.5590604026845638) internal successors, (2323), 1501 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) [2023-12-20 03:53:41,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2323 transitions. [2023-12-20 03:53:41,567 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2323 transitions. Word has length 309 [2023-12-20 03:53:41,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:53:41,573 INFO L495 AbstractCegarLoop]: Abstraction has 1502 states and 2323 transitions. [2023-12-20 03:53:41,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:41,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2323 transitions. [2023-12-20 03:53:41,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-12-20 03:53:41,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:53:41,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:53:41,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 03:53:41,578 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:53:41,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:53:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1461956210, now seen corresponding path program 1 times [2023-12-20 03:53:41,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:53:41,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359183395] [2023-12-20 03:53:41,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:53:41,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:53:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:53:42,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:53:42,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:53:42,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359183395] [2023-12-20 03:53:42,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359183395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:53:42,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:53:42,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:53:42,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837359937] [2023-12-20 03:53:42,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:53:42,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 03:53:42,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:53:42,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 03:53:42,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 03:53:42,339 INFO L87 Difference]: Start difference. First operand 1502 states and 2323 transitions. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:42,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:53:42,452 INFO L93 Difference]: Finished difference Result 4454 states and 6878 transitions. [2023-12-20 03:53:42,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 03:53:42,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 309 [2023-12-20 03:53:42,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:53:42,462 INFO L225 Difference]: With dead ends: 4454 [2023-12-20 03:53:42,463 INFO L226 Difference]: Without dead ends: 2962 [2023-12-20 03:53:42,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:53:42,468 INFO L413 NwaCegarLoop]: 2350 mSDtfsCounter, 3323 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:53:42,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3323 Valid, 3756 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:53:42,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2023-12-20 03:53:42,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 2807. [2023-12-20 03:53:42,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2807 states, 2795 states have (on average 1.5542039355992845) internal successors, (4344), 2806 states have internal predecessors, (4344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:42,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 4344 transitions. [2023-12-20 03:53:42,524 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 4344 transitions. Word has length 309 [2023-12-20 03:53:42,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:53:42,525 INFO L495 AbstractCegarLoop]: Abstraction has 2807 states and 4344 transitions. [2023-12-20 03:53:42,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:42,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 4344 transitions. [2023-12-20 03:53:42,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-12-20 03:53:42,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:53:42,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:53:42,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 03:53:42,533 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:53:42,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:53:42,534 INFO L85 PathProgramCache]: Analyzing trace with hash -792826836, now seen corresponding path program 1 times [2023-12-20 03:53:42,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:53:42,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460523922] [2023-12-20 03:53:42,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:53:42,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:53:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:53:42,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:53:42,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:53:42,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460523922] [2023-12-20 03:53:42,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460523922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:53:42,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:53:42,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:53:42,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440839955] [2023-12-20 03:53:42,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:53:42,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:53:42,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:53:42,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:53:42,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:42,735 INFO L87 Difference]: Start difference. First operand 2807 states and 4344 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:42,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:53:42,836 INFO L93 Difference]: Finished difference Result 8200 states and 12646 transitions. [2023-12-20 03:53:42,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:53:42,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 311 [2023-12-20 03:53:42,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:53:42,853 INFO L225 Difference]: With dead ends: 8200 [2023-12-20 03:53:42,853 INFO L226 Difference]: Without dead ends: 5517 [2023-12-20 03:53:42,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:42,861 INFO L413 NwaCegarLoop]: 2865 mSDtfsCounter, 1330 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 4271 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:53:42,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 4271 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:53:42,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5517 states. [2023-12-20 03:53:42,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5517 to 5362. [2023-12-20 03:53:42,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5362 states, 5350 states have (on average 1.5472897196261681) internal successors, (8278), 5361 states have internal predecessors, (8278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:42,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5362 states to 5362 states and 8278 transitions. [2023-12-20 03:53:42,948 INFO L78 Accepts]: Start accepts. Automaton has 5362 states and 8278 transitions. Word has length 311 [2023-12-20 03:53:42,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:53:42,948 INFO L495 AbstractCegarLoop]: Abstraction has 5362 states and 8278 transitions. [2023-12-20 03:53:42,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:42,949 INFO L276 IsEmpty]: Start isEmpty. Operand 5362 states and 8278 transitions. [2023-12-20 03:53:42,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-12-20 03:53:42,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:53:42,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:53:42,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 03:53:42,956 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:53:42,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:53:42,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1993381391, now seen corresponding path program 1 times [2023-12-20 03:53:42,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:53:42,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703638229] [2023-12-20 03:53:42,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:53:42,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:53:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:53:43,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:53:43,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:53:43,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703638229] [2023-12-20 03:53:43,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703638229] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:53:43,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:53:43,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:53:43,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508866742] [2023-12-20 03:53:43,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:53:43,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:53:43,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:53:43,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:53:43,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:43,097 INFO L87 Difference]: Start difference. First operand 5362 states and 8278 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:43,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:53:43,181 INFO L93 Difference]: Finished difference Result 16021 states and 24720 transitions. [2023-12-20 03:53:43,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:53:43,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 311 [2023-12-20 03:53:43,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:53:43,213 INFO L225 Difference]: With dead ends: 16021 [2023-12-20 03:53:43,213 INFO L226 Difference]: Without dead ends: 10696 [2023-12-20 03:53:43,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:43,224 INFO L413 NwaCegarLoop]: 2924 mSDtfsCounter, 1460 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:53:43,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 4384 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:53:43,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10696 states. [2023-12-20 03:53:43,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10696 to 5381. [2023-12-20 03:53:43,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5381 states, 5369 states have (on average 1.5470292419444962) internal successors, (8306), 5380 states have internal predecessors, (8306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:43,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5381 states to 5381 states and 8306 transitions. [2023-12-20 03:53:43,359 INFO L78 Accepts]: Start accepts. Automaton has 5381 states and 8306 transitions. Word has length 311 [2023-12-20 03:53:43,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:53:43,359 INFO L495 AbstractCegarLoop]: Abstraction has 5381 states and 8306 transitions. [2023-12-20 03:53:43,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:43,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5381 states and 8306 transitions. [2023-12-20 03:53:43,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2023-12-20 03:53:43,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:53:43,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:53:43,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 03:53:43,371 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:53:43,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:53:43,371 INFO L85 PathProgramCache]: Analyzing trace with hash -986049786, now seen corresponding path program 1 times [2023-12-20 03:53:43,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:53:43,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665744463] [2023-12-20 03:53:43,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:53:43,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:53:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:53:43,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:53:43,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:53:43,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665744463] [2023-12-20 03:53:43,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665744463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:53:43,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:53:43,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:53:43,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834109784] [2023-12-20 03:53:43,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:53:43,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:53:43,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:53:43,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:53:43,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:43,476 INFO L87 Difference]: Start difference. First operand 5381 states and 8306 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:43,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:53:43,562 INFO L93 Difference]: Finished difference Result 16040 states and 24741 transitions. [2023-12-20 03:53:43,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:53:43,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 312 [2023-12-20 03:53:43,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:53:43,596 INFO L225 Difference]: With dead ends: 16040 [2023-12-20 03:53:43,596 INFO L226 Difference]: Without dead ends: 10714 [2023-12-20 03:53:43,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:43,606 INFO L413 NwaCegarLoop]: 2924 mSDtfsCounter, 1455 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:53:43,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 4384 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:53:43,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10714 states. [2023-12-20 03:53:43,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10714 to 5399. [2023-12-20 03:53:43,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5399 states, 5387 states have (on average 1.5457583070354557) internal successors, (8327), 5398 states have internal predecessors, (8327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:43,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5399 states to 5399 states and 8327 transitions. [2023-12-20 03:53:43,770 INFO L78 Accepts]: Start accepts. Automaton has 5399 states and 8327 transitions. Word has length 312 [2023-12-20 03:53:43,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:53:43,770 INFO L495 AbstractCegarLoop]: Abstraction has 5399 states and 8327 transitions. [2023-12-20 03:53:43,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:43,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5399 states and 8327 transitions. [2023-12-20 03:53:43,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-12-20 03:53:43,779 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:53:43,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:53:43,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 03:53:43,779 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:53:43,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:53:43,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1605110649, now seen corresponding path program 1 times [2023-12-20 03:53:43,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:53:43,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244173638] [2023-12-20 03:53:43,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:53:43,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:53:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:53:43,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:53:43,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:53:43,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244173638] [2023-12-20 03:53:43,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244173638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:53:43,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:53:43,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:53:43,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193414410] [2023-12-20 03:53:43,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:53:43,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:53:43,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:53:43,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:53:43,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:43,941 INFO L87 Difference]: Start difference. First operand 5399 states and 8327 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:44,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:53:44,049 INFO L93 Difference]: Finished difference Result 15668 states and 24080 transitions. [2023-12-20 03:53:44,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:53:44,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 313 [2023-12-20 03:53:44,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:53:44,073 INFO L225 Difference]: With dead ends: 15668 [2023-12-20 03:53:44,073 INFO L226 Difference]: Without dead ends: 10509 [2023-12-20 03:53:44,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:44,083 INFO L413 NwaCegarLoop]: 2872 mSDtfsCounter, 1324 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 4278 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:53:44,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 4278 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:53:44,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10509 states. [2023-12-20 03:53:44,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10509 to 10354. [2023-12-20 03:53:44,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10354 states, 10342 states have (on average 1.5357764455617868) internal successors, (15883), 10353 states have internal predecessors, (15883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:44,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10354 states to 10354 states and 15883 transitions. [2023-12-20 03:53:44,312 INFO L78 Accepts]: Start accepts. Automaton has 10354 states and 15883 transitions. Word has length 313 [2023-12-20 03:53:44,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:53:44,313 INFO L495 AbstractCegarLoop]: Abstraction has 10354 states and 15883 transitions. [2023-12-20 03:53:44,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:44,313 INFO L276 IsEmpty]: Start isEmpty. Operand 10354 states and 15883 transitions. [2023-12-20 03:53:44,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-12-20 03:53:44,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:53:44,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:53:44,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 03:53:44,327 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:53:44,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:53:44,327 INFO L85 PathProgramCache]: Analyzing trace with hash 675292068, now seen corresponding path program 1 times [2023-12-20 03:53:44,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:53:44,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665306865] [2023-12-20 03:53:44,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:53:44,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:53:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:53:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:53:44,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:53:44,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665306865] [2023-12-20 03:53:44,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665306865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:53:44,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:53:44,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:53:44,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945354153] [2023-12-20 03:53:44,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:53:44,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:53:44,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:53:44,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:53:44,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:53:44,883 INFO L87 Difference]: Start difference. First operand 10354 states and 15883 transitions. Second operand has 5 states, 5 states have (on average 62.6) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:45,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:53:45,062 INFO L93 Difference]: Finished difference Result 30452 states and 46616 transitions. [2023-12-20 03:53:45,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 03:53:45,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.6) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 313 [2023-12-20 03:53:45,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:53:45,097 INFO L225 Difference]: With dead ends: 30452 [2023-12-20 03:53:45,097 INFO L226 Difference]: Without dead ends: 20152 [2023-12-20 03:53:45,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:53:45,115 INFO L413 NwaCegarLoop]: 2382 mSDtfsCounter, 3356 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3356 SdHoareTripleChecker+Valid, 5178 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:53:45,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3356 Valid, 5178 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:53:45,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20152 states. [2023-12-20 03:53:45,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20152 to 20003. [2023-12-20 03:53:45,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20003 states, 19991 states have (on average 1.5232854784653094) internal successors, (30452), 20002 states have internal predecessors, (30452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:45,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20003 states to 20003 states and 30452 transitions. [2023-12-20 03:53:45,445 INFO L78 Accepts]: Start accepts. Automaton has 20003 states and 30452 transitions. Word has length 313 [2023-12-20 03:53:45,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:53:45,446 INFO L495 AbstractCegarLoop]: Abstraction has 20003 states and 30452 transitions. [2023-12-20 03:53:45,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.6) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:45,446 INFO L276 IsEmpty]: Start isEmpty. Operand 20003 states and 30452 transitions. [2023-12-20 03:53:45,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-20 03:53:45,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:53:45,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:53:45,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 03:53:45,472 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:53:45,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:53:45,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1119110349, now seen corresponding path program 1 times [2023-12-20 03:53:45,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:53:45,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402730085] [2023-12-20 03:53:45,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:53:45,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:53:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:53:45,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:53:45,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:53:45,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402730085] [2023-12-20 03:53:45,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402730085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:53:45,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:53:45,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:53:45,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516618276] [2023-12-20 03:53:45,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:53:45,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:53:45,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:53:45,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:53:45,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:53:45,994 INFO L87 Difference]: Start difference. First operand 20003 states and 30452 transitions. Second operand has 5 states, 5 states have (on average 63.0) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:46,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:53:46,256 INFO L93 Difference]: Finished difference Result 58988 states and 89611 transitions. [2023-12-20 03:53:46,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 03:53:46,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 63.0) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 315 [2023-12-20 03:53:46,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:53:46,321 INFO L225 Difference]: With dead ends: 58988 [2023-12-20 03:53:46,321 INFO L226 Difference]: Without dead ends: 39101 [2023-12-20 03:53:46,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:53:46,354 INFO L413 NwaCegarLoop]: 2347 mSDtfsCounter, 2819 mSDsluCounter, 2764 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2819 SdHoareTripleChecker+Valid, 5111 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:53:46,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2819 Valid, 5111 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:53:46,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39101 states. [2023-12-20 03:53:46,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39101 to 38990. [2023-12-20 03:53:46,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38990 states, 38978 states have (on average 1.5099030222176613) internal successors, (58853), 38989 states have internal predecessors, (58853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:46,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38990 states to 38990 states and 58853 transitions. [2023-12-20 03:53:46,915 INFO L78 Accepts]: Start accepts. Automaton has 38990 states and 58853 transitions. Word has length 315 [2023-12-20 03:53:46,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:53:46,916 INFO L495 AbstractCegarLoop]: Abstraction has 38990 states and 58853 transitions. [2023-12-20 03:53:46,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.0) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:46,916 INFO L276 IsEmpty]: Start isEmpty. Operand 38990 states and 58853 transitions. [2023-12-20 03:53:46,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-20 03:53:46,967 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:53:46,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:53:46,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 03:53:46,968 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:53:46,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:53:46,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1203246374, now seen corresponding path program 1 times [2023-12-20 03:53:46,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:53:46,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209577360] [2023-12-20 03:53:46,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:53:46,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:53:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:53:47,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:53:47,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:53:47,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209577360] [2023-12-20 03:53:47,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209577360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:53:47,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:53:47,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:53:47,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400184091] [2023-12-20 03:53:47,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:53:47,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 03:53:47,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:53:47,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 03:53:47,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 03:53:47,570 INFO L87 Difference]: Start difference. First operand 38990 states and 58853 transitions. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:53:47,945 INFO L93 Difference]: Finished difference Result 115130 states and 173510 transitions. [2023-12-20 03:53:47,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 03:53:47,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 315 [2023-12-20 03:53:47,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:53:48,196 INFO L225 Difference]: With dead ends: 115130 [2023-12-20 03:53:48,196 INFO L226 Difference]: Without dead ends: 76369 [2023-12-20 03:53:48,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:53:48,235 INFO L413 NwaCegarLoop]: 2422 mSDtfsCounter, 3165 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3165 SdHoareTripleChecker+Valid, 3822 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:53:48,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3165 Valid, 3822 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:53:48,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76369 states. [2023-12-20 03:53:49,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76369 to 76170. [2023-12-20 03:53:49,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76170 states, 76158 states have (on average 1.4992121641849838) internal successors, (114177), 76169 states have internal predecessors, (114177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:49,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76170 states to 76170 states and 114177 transitions. [2023-12-20 03:53:49,301 INFO L78 Accepts]: Start accepts. Automaton has 76170 states and 114177 transitions. Word has length 315 [2023-12-20 03:53:49,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:53:49,301 INFO L495 AbstractCegarLoop]: Abstraction has 76170 states and 114177 transitions. [2023-12-20 03:53:49,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:49,301 INFO L276 IsEmpty]: Start isEmpty. Operand 76170 states and 114177 transitions. [2023-12-20 03:53:49,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-12-20 03:53:49,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:53:49,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:53:49,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 03:53:49,397 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:53:49,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:53:49,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1210034729, now seen corresponding path program 1 times [2023-12-20 03:53:49,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:53:49,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722367612] [2023-12-20 03:53:49,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:53:49,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:53:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:53:49,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:53:49,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:53:49,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722367612] [2023-12-20 03:53:49,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722367612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:53:49,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:53:49,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:53:49,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530075948] [2023-12-20 03:53:49,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:53:49,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:53:49,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:53:49,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:53:49,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:49,741 INFO L87 Difference]: Start difference. First operand 76170 states and 114177 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:50,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:53:50,438 INFO L93 Difference]: Finished difference Result 224232 states and 335373 transitions. [2023-12-20 03:53:50,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:53:50,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2023-12-20 03:53:50,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:53:50,695 INFO L225 Difference]: With dead ends: 224232 [2023-12-20 03:53:50,695 INFO L226 Difference]: Without dead ends: 149441 [2023-12-20 03:53:50,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:50,887 INFO L413 NwaCegarLoop]: 2828 mSDtfsCounter, 1306 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 4238 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:53:50,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 4238 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:53:50,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149441 states. [2023-12-20 03:53:52,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149441 to 149242. [2023-12-20 03:53:52,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149242 states, 149230 states have (on average 1.489023654761107) internal successors, (222207), 149241 states have internal predecessors, (222207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:53,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149242 states to 149242 states and 222207 transitions. [2023-12-20 03:53:53,114 INFO L78 Accepts]: Start accepts. Automaton has 149242 states and 222207 transitions. Word has length 317 [2023-12-20 03:53:53,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:53:53,114 INFO L495 AbstractCegarLoop]: Abstraction has 149242 states and 222207 transitions. [2023-12-20 03:53:53,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:53,115 INFO L276 IsEmpty]: Start isEmpty. Operand 149242 states and 222207 transitions. [2023-12-20 03:53:53,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-12-20 03:53:53,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:53:53,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:53:53,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 03:53:53,254 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:53:53,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:53:53,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1631603548, now seen corresponding path program 1 times [2023-12-20 03:53:53,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:53:53,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591585227] [2023-12-20 03:53:53,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:53:53,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:53:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:53:53,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:53:53,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:53:53,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591585227] [2023-12-20 03:53:53,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591585227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:53:53,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:53:53,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:53:53,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143452925] [2023-12-20 03:53:53,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:53:53,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:53:53,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:53:53,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:53:53,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:53,336 INFO L87 Difference]: Start difference. First operand 149242 states and 222207 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:53:55,040 INFO L93 Difference]: Finished difference Result 446604 states and 664799 transitions. [2023-12-20 03:53:55,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:53:55,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2023-12-20 03:53:55,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:53:55,549 INFO L225 Difference]: With dead ends: 446604 [2023-12-20 03:53:55,549 INFO L226 Difference]: Without dead ends: 298023 [2023-12-20 03:53:55,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:55,667 INFO L413 NwaCegarLoop]: 2891 mSDtfsCounter, 1427 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 4351 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:53:55,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 4351 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:53:55,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298023 states. [2023-12-20 03:53:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298023 to 149452. [2023-12-20 03:53:58,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149452 states, 149440 states have (on average 1.4890190042826552) internal successors, (222519), 149451 states have internal predecessors, (222519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:58,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149452 states to 149452 states and 222519 transitions. [2023-12-20 03:53:58,476 INFO L78 Accepts]: Start accepts. Automaton has 149452 states and 222519 transitions. Word has length 317 [2023-12-20 03:53:58,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:53:58,476 INFO L495 AbstractCegarLoop]: Abstraction has 149452 states and 222519 transitions. [2023-12-20 03:53:58,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:53:58,476 INFO L276 IsEmpty]: Start isEmpty. Operand 149452 states and 222519 transitions. [2023-12-20 03:53:58,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2023-12-20 03:53:58,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:53:58,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:53:58,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 03:53:58,618 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:53:58,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:53:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1255602357, now seen corresponding path program 1 times [2023-12-20 03:53:58,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:53:58,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376444535] [2023-12-20 03:53:58,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:53:58,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:53:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:53:58,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:53:58,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:53:58,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376444535] [2023-12-20 03:53:58,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376444535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:53:58,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:53:58,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:53:58,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011901144] [2023-12-20 03:53:58,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:53:58,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:53:58,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:53:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:53:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:53:58,714 INFO L87 Difference]: Start difference. First operand 149452 states and 222519 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:00,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:54:00,214 INFO L93 Difference]: Finished difference Result 446792 states and 665005 transitions. [2023-12-20 03:54:00,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:54:00,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 318 [2023-12-20 03:54:00,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:54:00,888 INFO L225 Difference]: With dead ends: 446792 [2023-12-20 03:54:00,888 INFO L226 Difference]: Without dead ends: 298201 [2023-12-20 03:54:00,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:54:00,970 INFO L413 NwaCegarLoop]: 2891 mSDtfsCounter, 1422 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 4351 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:54:00,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 4351 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:54:01,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298201 states. [2023-12-20 03:54:03,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298201 to 149682. [2023-12-20 03:54:03,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149682 states, 149670 states have (on average 1.4884946883142915) internal successors, (222783), 149681 states have internal predecessors, (222783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:04,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149682 states to 149682 states and 222783 transitions. [2023-12-20 03:54:04,235 INFO L78 Accepts]: Start accepts. Automaton has 149682 states and 222783 transitions. Word has length 318 [2023-12-20 03:54:04,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:54:04,235 INFO L495 AbstractCegarLoop]: Abstraction has 149682 states and 222783 transitions. [2023-12-20 03:54:04,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:04,235 INFO L276 IsEmpty]: Start isEmpty. Operand 149682 states and 222783 transitions. [2023-12-20 03:54:04,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2023-12-20 03:54:04,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:54:04,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:54:04,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 03:54:04,372 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:54:04,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:54:04,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1345775665, now seen corresponding path program 1 times [2023-12-20 03:54:04,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:54:04,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135355164] [2023-12-20 03:54:04,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:54:04,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:54:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:54:04,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:54:04,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:54:04,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135355164] [2023-12-20 03:54:04,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135355164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:54:04,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:54:04,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:54:04,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310446380] [2023-12-20 03:54:04,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:54:04,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:54:04,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:54:04,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:54:04,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:54:04,988 INFO L87 Difference]: Start difference. First operand 149682 states and 222783 transitions. Second operand has 5 states, 5 states have (on average 63.8) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:06,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:54:06,238 INFO L93 Difference]: Finished difference Result 440327 states and 653868 transitions. [2023-12-20 03:54:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 03:54:06,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 63.8) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 319 [2023-12-20 03:54:06,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:54:06,906 INFO L225 Difference]: With dead ends: 440327 [2023-12-20 03:54:06,906 INFO L226 Difference]: Without dead ends: 291225 [2023-12-20 03:54:06,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:54:07,000 INFO L413 NwaCegarLoop]: 2297 mSDtfsCounter, 4117 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4117 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:54:07,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4117 Valid, 3685 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:54:07,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291225 states. [2023-12-20 03:54:10,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291225 to 291054. [2023-12-20 03:54:10,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291054 states, 291042 states have (on average 1.4740037520357887) internal successors, (428997), 291053 states have internal predecessors, (428997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:11,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291054 states to 291054 states and 428997 transitions. [2023-12-20 03:54:11,302 INFO L78 Accepts]: Start accepts. Automaton has 291054 states and 428997 transitions. Word has length 319 [2023-12-20 03:54:11,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:54:11,302 INFO L495 AbstractCegarLoop]: Abstraction has 291054 states and 428997 transitions. [2023-12-20 03:54:11,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.8) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:11,302 INFO L276 IsEmpty]: Start isEmpty. Operand 291054 states and 428997 transitions. [2023-12-20 03:54:11,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-12-20 03:54:11,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:54:11,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:54:11,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 03:54:11,539 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:54:11,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:54:11,540 INFO L85 PathProgramCache]: Analyzing trace with hash 774166847, now seen corresponding path program 1 times [2023-12-20 03:54:11,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:54:11,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14291474] [2023-12-20 03:54:11,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:54:11,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:54:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:54:12,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:54:12,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:54:12,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14291474] [2023-12-20 03:54:12,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14291474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:54:12,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:54:12,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:54:12,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016712983] [2023-12-20 03:54:12,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:54:12,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 03:54:12,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:54:12,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 03:54:12,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 03:54:12,255 INFO L87 Difference]: Start difference. First operand 291054 states and 428997 transitions. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:14,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:54:14,295 INFO L93 Difference]: Finished difference Result 602525 states and 887847 transitions. [2023-12-20 03:54:14,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 03:54:14,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2023-12-20 03:54:14,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:54:14,848 INFO L225 Difference]: With dead ends: 602525 [2023-12-20 03:54:14,848 INFO L226 Difference]: Without dead ends: 313088 [2023-12-20 03:54:14,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:54:14,941 INFO L413 NwaCegarLoop]: 2223 mSDtfsCounter, 3317 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3317 SdHoareTripleChecker+Valid, 3623 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:54:14,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3317 Valid, 3623 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:54:15,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313088 states. [2023-12-20 03:54:18,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313088 to 291289. [2023-12-20 03:54:18,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291289 states, 291277 states have (on average 1.473453104776553) internal successors, (429183), 291288 states have internal predecessors, (429183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:19,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291289 states to 291289 states and 429183 transitions. [2023-12-20 03:54:19,083 INFO L78 Accepts]: Start accepts. Automaton has 291289 states and 429183 transitions. Word has length 321 [2023-12-20 03:54:19,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:54:19,083 INFO L495 AbstractCegarLoop]: Abstraction has 291289 states and 429183 transitions. [2023-12-20 03:54:19,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:19,084 INFO L276 IsEmpty]: Start isEmpty. Operand 291289 states and 429183 transitions. [2023-12-20 03:54:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-20 03:54:19,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:54:19,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:54:19,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 03:54:19,683 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:54:19,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:54:19,684 INFO L85 PathProgramCache]: Analyzing trace with hash -238143636, now seen corresponding path program 1 times [2023-12-20 03:54:19,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:54:19,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093589210] [2023-12-20 03:54:19,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:54:19,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:54:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:54:19,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:54:19,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:54:19,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093589210] [2023-12-20 03:54:19,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093589210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:54:19,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:54:19,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:54:19,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157526447] [2023-12-20 03:54:19,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:54:19,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:54:19,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:54:19,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:54:19,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:54:19,765 INFO L87 Difference]: Start difference. First operand 291289 states and 429183 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:22,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:54:22,394 INFO L93 Difference]: Finished difference Result 867525 states and 1277572 transitions. [2023-12-20 03:54:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:54:22,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 323 [2023-12-20 03:54:22,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:54:23,243 INFO L225 Difference]: With dead ends: 867525 [2023-12-20 03:54:23,243 INFO L226 Difference]: Without dead ends: 578713 [2023-12-20 03:54:23,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:54:23,766 INFO L413 NwaCegarLoop]: 2858 mSDtfsCounter, 1394 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 4318 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:54:23,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 4318 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:54:24,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578713 states. [2023-12-20 03:54:28,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578713 to 291762. [2023-12-20 03:54:29,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291762 states, 291750 states have (on average 1.4730556983718937) internal successors, (429764), 291761 states have internal predecessors, (429764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:29,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291762 states to 291762 states and 429764 transitions. [2023-12-20 03:54:29,854 INFO L78 Accepts]: Start accepts. Automaton has 291762 states and 429764 transitions. Word has length 323 [2023-12-20 03:54:29,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:54:29,854 INFO L495 AbstractCegarLoop]: Abstraction has 291762 states and 429764 transitions. [2023-12-20 03:54:29,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:29,855 INFO L276 IsEmpty]: Start isEmpty. Operand 291762 states and 429764 transitions. [2023-12-20 03:54:30,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-12-20 03:54:30,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:54:30,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:54:30,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 03:54:30,108 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:54:30,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:54:30,136 INFO L85 PathProgramCache]: Analyzing trace with hash 765509919, now seen corresponding path program 1 times [2023-12-20 03:54:30,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:54:30,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513095434] [2023-12-20 03:54:30,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:54:30,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:54:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:54:30,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:54:30,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:54:30,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513095434] [2023-12-20 03:54:30,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513095434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:54:30,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:54:30,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:54:30,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375449938] [2023-12-20 03:54:30,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:54:30,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:54:30,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:54:30,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:54:30,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:54:30,210 INFO L87 Difference]: Start difference. First operand 291762 states and 429764 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:32,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:54:32,810 INFO L93 Difference]: Finished difference Result 869944 states and 1281131 transitions. [2023-12-20 03:54:32,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:54:32,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 324 [2023-12-20 03:54:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:54:33,645 INFO L225 Difference]: With dead ends: 869944 [2023-12-20 03:54:33,645 INFO L226 Difference]: Without dead ends: 580770 [2023-12-20 03:54:34,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:54:34,141 INFO L413 NwaCegarLoop]: 2858 mSDtfsCounter, 1389 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 4318 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:54:34,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 4318 Invalid, 10 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:54:34,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580770 states. [2023-12-20 03:54:39,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580770 to 292447. [2023-12-20 03:54:39,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292447 states, 292435 states have (on average 1.4723545403252005) internal successors, (430568), 292446 states have internal predecessors, (430568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:40,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292447 states to 292447 states and 430568 transitions. [2023-12-20 03:54:40,358 INFO L78 Accepts]: Start accepts. Automaton has 292447 states and 430568 transitions. Word has length 324 [2023-12-20 03:54:40,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:54:40,358 INFO L495 AbstractCegarLoop]: Abstraction has 292447 states and 430568 transitions. [2023-12-20 03:54:40,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:40,359 INFO L276 IsEmpty]: Start isEmpty. Operand 292447 states and 430568 transitions. [2023-12-20 03:54:40,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-20 03:54:40,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:54:40,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:54:40,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 03:54:40,654 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:54:40,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:54:40,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1401067202, now seen corresponding path program 1 times [2023-12-20 03:54:40,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:54:40,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609167061] [2023-12-20 03:54:40,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:54:40,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:54:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:54:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:54:41,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:54:41,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609167061] [2023-12-20 03:54:41,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609167061] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:54:41,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:54:41,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:54:41,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597070894] [2023-12-20 03:54:41,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:54:41,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:54:41,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:54:41,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:54:41,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:54:41,123 INFO L87 Difference]: Start difference. First operand 292447 states and 430568 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:43,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:54:43,839 INFO L93 Difference]: Finished difference Result 863518 states and 1269363 transitions. [2023-12-20 03:54:43,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:54:43,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2023-12-20 03:54:43,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:54:44,666 INFO L225 Difference]: With dead ends: 863518 [2023-12-20 03:54:44,667 INFO L226 Difference]: Without dead ends: 573505 [2023-12-20 03:54:44,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:54:44,796 INFO L413 NwaCegarLoop]: 2843 mSDtfsCounter, 1306 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:54:44,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 4253 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:54:45,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573505 states. [2023-12-20 03:54:51,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573505 to 573282. [2023-12-20 03:54:51,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573282 states, 573270 states have (on average 1.4615451706874596) internal successors, (837860), 573281 states have internal predecessors, (837860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:53,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573282 states to 573282 states and 837860 transitions. [2023-12-20 03:54:53,681 INFO L78 Accepts]: Start accepts. Automaton has 573282 states and 837860 transitions. Word has length 325 [2023-12-20 03:54:53,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:54:53,681 INFO L495 AbstractCegarLoop]: Abstraction has 573282 states and 837860 transitions. [2023-12-20 03:54:53,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:53,681 INFO L276 IsEmpty]: Start isEmpty. Operand 573282 states and 837860 transitions. [2023-12-20 03:54:54,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-20 03:54:54,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:54:54,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:54:54,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 03:54:54,613 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:54:54,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:54:54,613 INFO L85 PathProgramCache]: Analyzing trace with hash 265210207, now seen corresponding path program 1 times [2023-12-20 03:54:54,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:54:54,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563766472] [2023-12-20 03:54:54,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:54:54,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:54:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:54:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:54:54,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:54:54,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563766472] [2023-12-20 03:54:54,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563766472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:54:54,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:54:54,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:54:54,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507620818] [2023-12-20 03:54:54,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:54:54,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:54:54,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:54:54,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:54:54,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:54:54,976 INFO L87 Difference]: Start difference. First operand 573282 states and 837860 transitions. Second operand has 5 states, 5 states have (on average 65.0) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:54:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:54:59,284 INFO L93 Difference]: Finished difference Result 1184048 states and 1730102 transitions. [2023-12-20 03:54:59,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 03:54:59,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.0) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2023-12-20 03:54:59,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:55:00,461 INFO L225 Difference]: With dead ends: 1184048 [2023-12-20 03:55:00,461 INFO L226 Difference]: Without dead ends: 615165 [2023-12-20 03:55:00,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:55:00,635 INFO L413 NwaCegarLoop]: 2372 mSDtfsCounter, 4634 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4634 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:55:00,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4634 Valid, 3768 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:55:01,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615165 states. [2023-12-20 03:55:07,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615165 to 572822. [2023-12-20 03:55:08,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572822 states, 572810 states have (on average 1.4611267261395575) internal successors, (836948), 572821 states have internal predecessors, (836948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:55:09,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572822 states to 572822 states and 836948 transitions. [2023-12-20 03:55:09,575 INFO L78 Accepts]: Start accepts. Automaton has 572822 states and 836948 transitions. Word has length 325 [2023-12-20 03:55:09,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:55:09,575 INFO L495 AbstractCegarLoop]: Abstraction has 572822 states and 836948 transitions. [2023-12-20 03:55:09,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.0) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:55:09,576 INFO L276 IsEmpty]: Start isEmpty. Operand 572822 states and 836948 transitions. [2023-12-20 03:55:10,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-12-20 03:55:10,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:55:10,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:55:10,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 03:55:10,400 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:55:10,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:55:10,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1260817408, now seen corresponding path program 1 times [2023-12-20 03:55:10,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:55:10,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252858101] [2023-12-20 03:55:10,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:55:10,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:55:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:55:10,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:55:10,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:55:10,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252858101] [2023-12-20 03:55:10,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252858101] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:55:10,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:55:10,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:55:10,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752386355] [2023-12-20 03:55:10,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:55:10,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:55:10,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:55:10,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:55:10,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:55:10,701 INFO L87 Difference]: Start difference. First operand 572822 states and 836948 transitions. Second operand has 5 states, 5 states have (on average 65.4) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:55:16,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:55:16,912 INFO L93 Difference]: Finished difference Result 1681406 states and 2450344 transitions. [2023-12-20 03:55:16,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 03:55:16,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.4) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 327 [2023-12-20 03:55:16,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:55:19,005 INFO L225 Difference]: With dead ends: 1681406 [2023-12-20 03:55:19,005 INFO L226 Difference]: Without dead ends: 1113079 [2023-12-20 03:55:19,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:55:19,684 INFO L413 NwaCegarLoop]: 2273 mSDtfsCounter, 3328 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3328 SdHoareTripleChecker+Valid, 5017 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:55:19,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3328 Valid, 5017 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:55:20,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113079 states. [2023-12-20 03:55:33,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113079 to 1113000. [2023-12-20 03:55:34,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113000 states, 1112988 states have (on average 1.4442545651884837) internal successors, (1607438), 1112999 states have internal predecessors, (1607438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:55:39,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113000 states to 1113000 states and 1607438 transitions. [2023-12-20 03:55:39,908 INFO L78 Accepts]: Start accepts. Automaton has 1113000 states and 1607438 transitions. Word has length 327 [2023-12-20 03:55:39,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:55:39,908 INFO L495 AbstractCegarLoop]: Abstraction has 1113000 states and 1607438 transitions. [2023-12-20 03:55:39,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.4) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:55:39,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1113000 states and 1607438 transitions. [2023-12-20 03:55:41,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-12-20 03:55:41,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:55:41,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:55:41,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 03:55:41,895 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 03:55:41,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:55:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash -828120451, now seen corresponding path program 1 times [2023-12-20 03:55:41,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:55:41,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689999929] [2023-12-20 03:55:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:55:41,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:55:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:55:42,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:55:42,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:55:42,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689999929] [2023-12-20 03:55:42,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689999929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:55:42,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:55:42,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:55:42,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719742951] [2023-12-20 03:55:42,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:55:42,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 03:55:42,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:55:42,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 03:55:42,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 03:55:42,554 INFO L87 Difference]: Start difference. First operand 1113000 states and 1607438 transitions. Second operand has 4 states, 4 states have (on average 81.75) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)