/usr/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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 06:29:37,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 06:29:37,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 06:29:37,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 06:29:37,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 06:29:37,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 06:29:37,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 06:29:37,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 06:29:37,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 06:29:37,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 06:29:37,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 06:29:37,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 06:29:37,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 06:29:37,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 06:29:37,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 06:29:37,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 06:29:37,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 06:29:37,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 06:29:37,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 06:29:37,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 06:29:37,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 06:29:37,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 06:29:37,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 06:29:37,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 06:29:37,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 06:29:37,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 06:29:37,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 06:29:37,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 06:29:37,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 06:29:37,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 06:29:37,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 06:29:37,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 06:29:37,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 06:29:37,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 06:29:37,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 06:29:37,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 06:29:37,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 06:29:37,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 06:29:37,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 06:29:37,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 06:29:37,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 06:29:37,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 06:29:37,269 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 06:29:37,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 06:29:37,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 06:29:37,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 06:29:37,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 06:29:37,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 06:29:37,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 06:29:37,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 06:29:37,271 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 06:29:37,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 06:29:37,272 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 06:29:37,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 06:29:37,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 06:29:37,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 06:29:37,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 06:29:37,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 06:29:37,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 06:29:37,272 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 06:29:37,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 06:29:37,272 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 06:29:37,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 06:29:37,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 06:29:37,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 06:29:37,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 06:29:37,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:29:37,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 06:29:37,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 06:29:37,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 06:29:37,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 06:29:37,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 06:29:37,273 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 06:29:37,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 06:29:37,274 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 06:29:37,274 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 06:29:37,274 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 06:29:37,274 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 06:29:37,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 06:29:37,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 06:29:37,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 06:29:37,479 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 06:29:37,480 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 06:29:37,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2023-04-02 06:29:38,622 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 06:29:38,927 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 06:29:38,928 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2023-04-02 06:29:38,937 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c949f4d20/403bbb907d7b4b05af54c4614bba475b/FLAG787e541a4 [2023-04-02 06:29:38,947 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c949f4d20/403bbb907d7b4b05af54c4614bba475b [2023-04-02 06:29:38,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 06:29:38,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 06:29:38,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 06:29:38,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 06:29:38,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 06:29:38,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:29:38" (1/1) ... [2023-04-02 06:29:38,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@210b3e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:29:38, skipping insertion in model container [2023-04-02 06:29:38,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:29:38" (1/1) ... [2023-04-02 06:29:38,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 06:29:39,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 06:29:39,183 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[18815,18828] [2023-04-02 06:29:39,206 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[25895,25908] [2023-04-02 06:29:39,216 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[29420,29433] [2023-04-02 06:29:39,225 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32798,32811] [2023-04-02 06:29:39,236 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[36856,36869] [2023-04-02 06:29:39,244 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[40310,40323] [2023-04-02 06:29:39,252 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[43875,43888] [2023-04-02 06:29:39,266 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[47290,47303] [2023-04-02 06:29:39,274 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[50969,50982] [2023-04-02 06:29:39,281 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[54551,54564] [2023-04-02 06:29:39,288 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[58080,58093] [2023-04-02 06:29:39,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:29:39,322 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 06:29:39,400 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[18815,18828] [2023-04-02 06:29:39,423 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[25895,25908] [2023-04-02 06:29:39,438 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[29420,29433] [2023-04-02 06:29:39,448 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32798,32811] [2023-04-02 06:29:39,458 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[36856,36869] [2023-04-02 06:29:39,491 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[40310,40323] [2023-04-02 06:29:39,506 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[43875,43888] [2023-04-02 06:29:39,510 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[47290,47303] [2023-04-02 06:29:39,548 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[50969,50982] [2023-04-02 06:29:39,553 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[54551,54564] [2023-04-02 06:29:39,557 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[58080,58093] [2023-04-02 06:29:39,574 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:29:39,589 INFO L208 MainTranslator]: Completed translation [2023-04-02 06:29:39,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:29:39 WrapperNode [2023-04-02 06:29:39,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 06:29:39,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 06:29:39,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 06:29:39,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 06:29:39,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:29:39" (1/1) ... [2023-04-02 06:29:39,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:29:39" (1/1) ... [2023-04-02 06:29:39,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:29:39" (1/1) ... [2023-04-02 06:29:39,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:29:39" (1/1) ... [2023-04-02 06:29:39,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:29:39" (1/1) ... [2023-04-02 06:29:39,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:29:39" (1/1) ... [2023-04-02 06:29:39,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:29:39" (1/1) ... [2023-04-02 06:29:39,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:29:39" (1/1) ... [2023-04-02 06:29:39,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 06:29:39,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 06:29:39,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 06:29:39,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 06:29:39,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:29:39" (1/1) ... [2023-04-02 06:29:39,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:29:39,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 06:29:39,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 06:29:39,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 06:29:39,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 06:29:39,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 06:29:39,804 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 06:29:39,804 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 06:29:39,804 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 06:29:39,804 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 06:29:39,804 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 06:29:39,804 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 06:29:39,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 06:29:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 06:29:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 06:29:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 06:29:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 06:29:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 06:29:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 06:29:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 06:29:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 06:29:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 06:29:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 06:29:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 06:29:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 06:29:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 06:29:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 06:29:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 06:29:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 06:29:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 06:29:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 06:29:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 06:29:40,005 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 06:29:40,008 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 06:29:41,133 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 06:29:41,147 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 06:29:41,147 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 06:29:41,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:29:41 BoogieIcfgContainer [2023-04-02 06:29:41,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 06:29:41,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 06:29:41,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 06:29:41,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 06:29:41,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 06:29:38" (1/3) ... [2023-04-02 06:29:41,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8ae2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:29:41, skipping insertion in model container [2023-04-02 06:29:41,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:29:39" (2/3) ... [2023-04-02 06:29:41,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8ae2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:29:41, skipping insertion in model container [2023-04-02 06:29:41,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:29:41" (3/3) ... [2023-04-02 06:29:41,161 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2023-04-02 06:29:41,174 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 06:29:41,174 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-04-02 06:29:41,229 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 06:29:41,234 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=LoopsAndPotentialCycles, 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;@2a952cfb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 06:29:41,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-04-02 06:29:41,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 575 states, 559 states have (on average 1.7817531305903398) internal successors, (996), 570 states have internal predecessors, (996), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 06:29:41,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-04-02 06:29:41,263 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:29:41,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:29:41,264 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr7ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:29:41,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:29:41,267 INFO L85 PathProgramCache]: Analyzing trace with hash -792737483, now seen corresponding path program 1 times [2023-04-02 06:29:41,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:29:41,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62968902] [2023-04-02 06:29:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:29:41,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:29:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:42,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:29:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:42,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:29:42,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:29:42,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62968902] [2023-04-02 06:29:42,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62968902] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:29:42,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:29:42,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:29:42,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133316448] [2023-04-02 06:29:42,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:29:42,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:29:42,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:29:42,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:29:42,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:29:42,410 INFO L87 Difference]: Start difference. First operand has 575 states, 559 states have (on average 1.7817531305903398) internal successors, (996), 570 states have internal predecessors, (996), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:44,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:29:44,566 INFO L93 Difference]: Finished difference Result 685 states and 1162 transitions. [2023-04-02 06:29:44,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:29:44,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2023-04-02 06:29:44,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:29:44,576 INFO L225 Difference]: With dead ends: 685 [2023-04-02 06:29:44,576 INFO L226 Difference]: Without dead ends: 387 [2023-04-02 06:29:44,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:29:44,584 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 1860 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:29:44,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 465 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 06:29:44,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-04-02 06:29:44,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2023-04-02 06:29:44,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 373 states have (on average 1.2654155495978552) internal successors, (472), 383 states have internal predecessors, (472), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:44,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 475 transitions. [2023-04-02 06:29:44,645 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 475 transitions. Word has length 64 [2023-04-02 06:29:44,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:29:44,645 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 475 transitions. [2023-04-02 06:29:44,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:44,646 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 475 transitions. [2023-04-02 06:29:44,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-04-02 06:29:44,647 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:29:44,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:29:44,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 06:29:44,648 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:29:44,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:29:44,648 INFO L85 PathProgramCache]: Analyzing trace with hash -855792539, now seen corresponding path program 1 times [2023-04-02 06:29:44,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:29:44,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264589079] [2023-04-02 06:29:44,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:29:44,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:29:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:45,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:29:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:45,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:29:45,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:29:45,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264589079] [2023-04-02 06:29:45,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264589079] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:29:45,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:29:45,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:29:45,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502139809] [2023-04-02 06:29:45,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:29:45,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:29:45,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:29:45,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:29:45,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:29:45,298 INFO L87 Difference]: Start difference. First operand 387 states and 475 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:46,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:29:46,813 INFO L93 Difference]: Finished difference Result 545 states and 680 transitions. [2023-04-02 06:29:46,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:29:46,814 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2023-04-02 06:29:46,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:29:46,817 INFO L225 Difference]: With dead ends: 545 [2023-04-02 06:29:46,817 INFO L226 Difference]: Without dead ends: 355 [2023-04-02 06:29:46,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:29:46,824 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 1227 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:29:46,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 258 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 06:29:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-04-02 06:29:46,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2023-04-02 06:29:46,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 341 states have (on average 1.2756598240469208) internal successors, (435), 351 states have internal predecessors, (435), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:46,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 438 transitions. [2023-04-02 06:29:46,872 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 438 transitions. Word has length 64 [2023-04-02 06:29:46,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:29:46,873 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 438 transitions. [2023-04-02 06:29:46,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:46,874 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 438 transitions. [2023-04-02 06:29:46,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-04-02 06:29:46,901 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:29:46,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:29:46,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 06:29:46,902 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:29:46,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:29:46,903 INFO L85 PathProgramCache]: Analyzing trace with hash 633901317, now seen corresponding path program 1 times [2023-04-02 06:29:46,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:29:46,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402089134] [2023-04-02 06:29:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:29:46,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:29:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:47,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:29:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:47,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:29:47,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:29:47,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402089134] [2023-04-02 06:29:47,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402089134] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:29:47,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:29:47,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:29:47,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213609981] [2023-04-02 06:29:47,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:29:47,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:29:47,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:29:47,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:29:47,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:29:47,550 INFO L87 Difference]: Start difference. First operand 355 states and 438 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:48,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:29:48,806 INFO L93 Difference]: Finished difference Result 477 states and 594 transitions. [2023-04-02 06:29:48,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:29:48,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2023-04-02 06:29:48,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:29:48,813 INFO L225 Difference]: With dead ends: 477 [2023-04-02 06:29:48,813 INFO L226 Difference]: Without dead ends: 291 [2023-04-02 06:29:48,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:29:48,816 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1018 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:29:48,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 226 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 06:29:48,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-04-02 06:29:48,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2023-04-02 06:29:48,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 277 states have (on average 1.2851985559566788) internal successors, (356), 287 states have internal predecessors, (356), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 359 transitions. [2023-04-02 06:29:48,856 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 359 transitions. Word has length 64 [2023-04-02 06:29:48,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:29:48,856 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 359 transitions. [2023-04-02 06:29:48,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:48,856 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 359 transitions. [2023-04-02 06:29:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-04-02 06:29:48,874 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:29:48,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:29:48,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 06:29:48,874 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:29:48,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:29:48,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1167936730, now seen corresponding path program 1 times [2023-04-02 06:29:48,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:29:48,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569792497] [2023-04-02 06:29:48,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:29:48,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:29:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:49,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:29:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:49,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:29:49,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:29:49,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569792497] [2023-04-02 06:29:49,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569792497] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:29:49,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:29:49,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:29:49,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325162037] [2023-04-02 06:29:49,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:29:49,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:29:49,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:29:49,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:29:49,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:29:49,692 INFO L87 Difference]: Start difference. First operand 291 states and 359 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:50,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:29:50,985 INFO L93 Difference]: Finished difference Result 425 states and 534 transitions. [2023-04-02 06:29:50,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:29:50,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2023-04-02 06:29:50,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:29:50,987 INFO L225 Difference]: With dead ends: 425 [2023-04-02 06:29:50,987 INFO L226 Difference]: Without dead ends: 265 [2023-04-02 06:29:50,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:29:50,990 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 936 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:29:50,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 208 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 06:29:50,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-04-02 06:29:51,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2023-04-02 06:29:51,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 251 states have (on average 1.294820717131474) internal successors, (325), 261 states have internal predecessors, (325), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:51,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 328 transitions. [2023-04-02 06:29:51,011 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 328 transitions. Word has length 66 [2023-04-02 06:29:51,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:29:51,014 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 328 transitions. [2023-04-02 06:29:51,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:51,014 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 328 transitions. [2023-04-02 06:29:51,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-02 06:29:51,015 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:29:51,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:29:51,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 06:29:51,020 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:29:51,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:29:51,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1766745384, now seen corresponding path program 1 times [2023-04-02 06:29:51,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:29:51,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459483074] [2023-04-02 06:29:51,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:29:51,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:29:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:51,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:29:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:51,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:29:51,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:29:51,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459483074] [2023-04-02 06:29:51,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459483074] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:29:51,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:29:51,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:29:51,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299631557] [2023-04-02 06:29:51,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:29:51,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:29:51,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:29:51,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:29:51,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:29:51,757 INFO L87 Difference]: Start difference. First operand 265 states and 328 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:53,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:29:53,645 INFO L93 Difference]: Finished difference Result 611 states and 798 transitions. [2023-04-02 06:29:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:29:53,646 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2023-04-02 06:29:53,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:29:53,647 INFO L225 Difference]: With dead ends: 611 [2023-04-02 06:29:53,648 INFO L226 Difference]: Without dead ends: 519 [2023-04-02 06:29:53,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:29:53,649 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 2170 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:29:53,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2170 Valid, 936 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 06:29:53,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-04-02 06:29:53,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 265. [2023-04-02 06:29:53,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 251 states have (on average 1.2908366533864541) internal successors, (324), 261 states have internal predecessors, (324), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:53,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 327 transitions. [2023-04-02 06:29:53,667 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 327 transitions. Word has length 68 [2023-04-02 06:29:53,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:29:53,667 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 327 transitions. [2023-04-02 06:29:53,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:53,668 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 327 transitions. [2023-04-02 06:29:53,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-02 06:29:53,668 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:29:53,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:29:53,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 06:29:53,668 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:29:53,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:29:53,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1469003464, now seen corresponding path program 1 times [2023-04-02 06:29:53,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:29:53,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434225081] [2023-04-02 06:29:53,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:29:53,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:29:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:54,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:29:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:54,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:29:54,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:29:54,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434225081] [2023-04-02 06:29:54,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434225081] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:29:54,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:29:54,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:29:54,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000942068] [2023-04-02 06:29:54,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:29:54,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:29:54,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:29:54,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:29:54,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:29:54,300 INFO L87 Difference]: Start difference. First operand 265 states and 327 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:56,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:29:56,068 INFO L93 Difference]: Finished difference Result 583 states and 762 transitions. [2023-04-02 06:29:56,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:29:56,068 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2023-04-02 06:29:56,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:29:56,071 INFO L225 Difference]: With dead ends: 583 [2023-04-02 06:29:56,071 INFO L226 Difference]: Without dead ends: 515 [2023-04-02 06:29:56,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:29:56,074 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1959 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1959 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:29:56,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1959 Valid, 1081 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 06:29:56,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-04-02 06:29:56,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 265. [2023-04-02 06:29:56,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 251 states have (on average 1.2868525896414342) internal successors, (323), 261 states have internal predecessors, (323), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:56,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 326 transitions. [2023-04-02 06:29:56,115 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 326 transitions. Word has length 68 [2023-04-02 06:29:56,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:29:56,115 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 326 transitions. [2023-04-02 06:29:56,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:56,115 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 326 transitions. [2023-04-02 06:29:56,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-02 06:29:56,116 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:29:56,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:29:56,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 06:29:56,116 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:29:56,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:29:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash -917517688, now seen corresponding path program 1 times [2023-04-02 06:29:56,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:29:56,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762217176] [2023-04-02 06:29:56,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:29:56,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:29:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:56,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:29:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:56,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:29:56,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:29:56,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762217176] [2023-04-02 06:29:56,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762217176] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:29:56,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:29:56,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 06:29:56,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341883887] [2023-04-02 06:29:56,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:29:56,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 06:29:56,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:29:56,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 06:29:56,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:29:56,773 INFO L87 Difference]: Start difference. First operand 265 states and 326 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:58,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:29:58,108 INFO L93 Difference]: Finished difference Result 520 states and 642 transitions. [2023-04-02 06:29:58,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 06:29:58,109 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2023-04-02 06:29:58,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:29:58,110 INFO L225 Difference]: With dead ends: 520 [2023-04-02 06:29:58,110 INFO L226 Difference]: Without dead ends: 379 [2023-04-02 06:29:58,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-04-02 06:29:58,111 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 2011 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:29:58,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 494 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 06:29:58,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-04-02 06:29:58,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 265. [2023-04-02 06:29:58,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 251 states have (on average 1.2828685258964143) internal successors, (322), 261 states have internal predecessors, (322), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:58,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 325 transitions. [2023-04-02 06:29:58,133 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 325 transitions. Word has length 68 [2023-04-02 06:29:58,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:29:58,133 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 325 transitions. [2023-04-02 06:29:58,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:29:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 325 transitions. [2023-04-02 06:29:58,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-04-02 06:29:58,134 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:29:58,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:29:58,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 06:29:58,137 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:29:58,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:29:58,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1570452741, now seen corresponding path program 1 times [2023-04-02 06:29:58,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:29:58,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365400190] [2023-04-02 06:29:58,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:29:58,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:29:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:58,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:29:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:29:58,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:29:58,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:29:58,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365400190] [2023-04-02 06:29:58,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365400190] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:29:58,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:29:58,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:29:58,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096104771] [2023-04-02 06:29:58,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:29:58,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:29:58,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:29:58,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:29:58,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:29:58,785 INFO L87 Difference]: Start difference. First operand 265 states and 325 transitions. Second operand has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:00,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:00,469 INFO L93 Difference]: Finished difference Result 564 states and 731 transitions. [2023-04-02 06:30:00,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:30:00,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2023-04-02 06:30:00,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:00,471 INFO L225 Difference]: With dead ends: 564 [2023-04-02 06:30:00,471 INFO L226 Difference]: Without dead ends: 507 [2023-04-02 06:30:00,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:30:00,472 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1972 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1972 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:00,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1972 Valid, 996 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 06:30:00,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-04-02 06:30:00,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 265. [2023-04-02 06:30:00,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 251 states have (on average 1.2788844621513944) internal successors, (321), 261 states have internal predecessors, (321), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:00,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 324 transitions. [2023-04-02 06:30:00,498 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 324 transitions. Word has length 69 [2023-04-02 06:30:00,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:00,498 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 324 transitions. [2023-04-02 06:30:00,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:00,498 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 324 transitions. [2023-04-02 06:30:00,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:30:00,499 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:00,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:00,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 06:30:00,499 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:00,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:00,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1391305581, now seen corresponding path program 1 times [2023-04-02 06:30:00,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:00,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554853964] [2023-04-02 06:30:00,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:00,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:01,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:01,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:01,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:01,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554853964] [2023-04-02 06:30:01,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554853964] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:01,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:01,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:30:01,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945824013] [2023-04-02 06:30:01,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:01,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:30:01,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:01,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:30:01,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:30:01,145 INFO L87 Difference]: Start difference. First operand 265 states and 324 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:02,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:02,811 INFO L93 Difference]: Finished difference Result 513 states and 653 transitions. [2023-04-02 06:30:02,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:30:02,811 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:30:02,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:02,813 INFO L225 Difference]: With dead ends: 513 [2023-04-02 06:30:02,813 INFO L226 Difference]: Without dead ends: 507 [2023-04-02 06:30:02,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:30:02,814 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1937 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:02,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1937 Valid, 1017 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 06:30:02,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-04-02 06:30:02,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 265. [2023-04-02 06:30:02,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 251 states have (on average 1.2749003984063745) internal successors, (320), 261 states have internal predecessors, (320), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:02,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 323 transitions. [2023-04-02 06:30:02,839 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 323 transitions. Word has length 70 [2023-04-02 06:30:02,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:02,840 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 323 transitions. [2023-04-02 06:30:02,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:02,840 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 323 transitions. [2023-04-02 06:30:02,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:30:02,840 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:02,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:02,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 06:30:02,841 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:02,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:02,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1521689613, now seen corresponding path program 1 times [2023-04-02 06:30:02,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:02,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361963834] [2023-04-02 06:30:02,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:02,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:03,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:03,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:03,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:03,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361963834] [2023-04-02 06:30:03,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361963834] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:03,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:03,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:30:03,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721038245] [2023-04-02 06:30:03,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:03,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:30:03,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:03,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:30:03,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:30:03,498 INFO L87 Difference]: Start difference. First operand 265 states and 323 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:05,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:05,225 INFO L93 Difference]: Finished difference Result 534 states and 683 transitions. [2023-04-02 06:30:05,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:30:05,226 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:30:05,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:05,227 INFO L225 Difference]: With dead ends: 534 [2023-04-02 06:30:05,227 INFO L226 Difference]: Without dead ends: 515 [2023-04-02 06:30:05,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:30:05,228 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 1886 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:05,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 1114 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 06:30:05,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-04-02 06:30:05,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 265. [2023-04-02 06:30:05,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 251 states have (on average 1.2709163346613546) internal successors, (319), 261 states have internal predecessors, (319), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:05,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 322 transitions. [2023-04-02 06:30:05,261 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 322 transitions. Word has length 70 [2023-04-02 06:30:05,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:05,261 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 322 transitions. [2023-04-02 06:30:05,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:05,262 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 322 transitions. [2023-04-02 06:30:05,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:30:05,262 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:05,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:05,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 06:30:05,263 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:05,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:05,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1376806163, now seen corresponding path program 1 times [2023-04-02 06:30:05,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:05,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180428355] [2023-04-02 06:30:05,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:05,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:06,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:06,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180428355] [2023-04-02 06:30:06,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180428355] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:06,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:06,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 06:30:06,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488809303] [2023-04-02 06:30:06,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:06,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 06:30:06,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:06,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 06:30:06,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-04-02 06:30:06,303 INFO L87 Difference]: Start difference. First operand 265 states and 322 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:09,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:09,352 INFO L93 Difference]: Finished difference Result 725 states and 951 transitions. [2023-04-02 06:30:09,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 06:30:09,352 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:30:09,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:09,355 INFO L225 Difference]: With dead ends: 725 [2023-04-02 06:30:09,355 INFO L226 Difference]: Without dead ends: 627 [2023-04-02 06:30:09,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2023-04-02 06:30:09,356 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 2174 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 2137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:09,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2174 Valid, 2113 Invalid, 2137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2112 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-02 06:30:09,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2023-04-02 06:30:09,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 265. [2023-04-02 06:30:09,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 251 states have (on average 1.2669322709163346) internal successors, (318), 261 states have internal predecessors, (318), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:09,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 321 transitions. [2023-04-02 06:30:09,387 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 321 transitions. Word has length 70 [2023-04-02 06:30:09,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:09,387 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 321 transitions. [2023-04-02 06:30:09,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:09,387 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 321 transitions. [2023-04-02 06:30:09,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:30:09,388 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:09,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:09,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 06:30:09,388 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:09,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:09,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1060951987, now seen corresponding path program 1 times [2023-04-02 06:30:09,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:09,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745649106] [2023-04-02 06:30:09,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:09,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:10,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:10,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745649106] [2023-04-02 06:30:10,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745649106] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:10,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:10,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:30:10,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055070576] [2023-04-02 06:30:10,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:10,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:30:10,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:30:10,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:30:10,153 INFO L87 Difference]: Start difference. First operand 265 states and 321 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:11,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:11,918 INFO L93 Difference]: Finished difference Result 567 states and 730 transitions. [2023-04-02 06:30:11,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:30:11,919 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:30:11,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:11,920 INFO L225 Difference]: With dead ends: 567 [2023-04-02 06:30:11,920 INFO L226 Difference]: Without dead ends: 507 [2023-04-02 06:30:11,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:30:11,921 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 1846 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:11,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 1083 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 06:30:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-04-02 06:30:11,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 265. [2023-04-02 06:30:11,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 251 states have (on average 1.2629482071713147) internal successors, (317), 261 states have internal predecessors, (317), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:11,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 320 transitions. [2023-04-02 06:30:11,953 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 320 transitions. Word has length 70 [2023-04-02 06:30:11,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:11,953 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 320 transitions. [2023-04-02 06:30:11,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:11,954 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 320 transitions. [2023-04-02 06:30:11,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:30:11,954 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:11,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:11,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 06:30:11,954 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:11,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:11,955 INFO L85 PathProgramCache]: Analyzing trace with hash 787004205, now seen corresponding path program 1 times [2023-04-02 06:30:11,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:11,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391792709] [2023-04-02 06:30:11,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:11,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:12,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:12,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:12,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391792709] [2023-04-02 06:30:12,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391792709] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:12,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:12,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:30:12,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027201991] [2023-04-02 06:30:12,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:12,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:30:12,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:12,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:30:12,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:30:12,436 INFO L87 Difference]: Start difference. First operand 265 states and 320 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:14,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:14,590 INFO L93 Difference]: Finished difference Result 588 states and 759 transitions. [2023-04-02 06:30:14,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:30:14,591 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:30:14,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:14,601 INFO L225 Difference]: With dead ends: 588 [2023-04-02 06:30:14,602 INFO L226 Difference]: Without dead ends: 515 [2023-04-02 06:30:14,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:30:14,604 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 936 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:14,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 1306 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 06:30:14,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-04-02 06:30:14,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 265. [2023-04-02 06:30:14,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 251 states have (on average 1.2589641434262948) internal successors, (316), 261 states have internal predecessors, (316), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:14,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 319 transitions. [2023-04-02 06:30:14,651 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 319 transitions. Word has length 70 [2023-04-02 06:30:14,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:14,651 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 319 transitions. [2023-04-02 06:30:14,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:14,651 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 319 transitions. [2023-04-02 06:30:14,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:30:14,652 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:14,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:14,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 06:30:14,653 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:14,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:14,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1888877523, now seen corresponding path program 1 times [2023-04-02 06:30:14,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:14,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228566586] [2023-04-02 06:30:14,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:14,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:15,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:15,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:15,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:15,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228566586] [2023-04-02 06:30:15,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228566586] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:15,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:15,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:30:15,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565120191] [2023-04-02 06:30:15,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:15,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:30:15,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:15,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:30:15,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:30:15,574 INFO L87 Difference]: Start difference. First operand 265 states and 319 transitions. Second operand has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:18,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:18,192 INFO L93 Difference]: Finished difference Result 803 states and 1061 transitions. [2023-04-02 06:30:18,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:30:18,193 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:30:18,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:18,195 INFO L225 Difference]: With dead ends: 803 [2023-04-02 06:30:18,195 INFO L226 Difference]: Without dead ends: 797 [2023-04-02 06:30:18,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:30:18,196 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 4354 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4354 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:18,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4354 Valid, 1589 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 06:30:18,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2023-04-02 06:30:18,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 270. [2023-04-02 06:30:18,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 256 states have (on average 1.25390625) internal successors, (321), 266 states have internal predecessors, (321), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:18,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 324 transitions. [2023-04-02 06:30:18,259 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 324 transitions. Word has length 70 [2023-04-02 06:30:18,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:18,259 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 324 transitions. [2023-04-02 06:30:18,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:18,259 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 324 transitions. [2023-04-02 06:30:18,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-02 06:30:18,260 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:18,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:18,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 06:30:18,260 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:18,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:18,260 INFO L85 PathProgramCache]: Analyzing trace with hash 742244118, now seen corresponding path program 1 times [2023-04-02 06:30:18,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:18,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408015073] [2023-04-02 06:30:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:18,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:19,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:19,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:19,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408015073] [2023-04-02 06:30:19,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408015073] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:19,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:19,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-04-02 06:30:19,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518026738] [2023-04-02 06:30:19,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:19,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-04-02 06:30:19,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:19,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-04-02 06:30:19,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2023-04-02 06:30:19,847 INFO L87 Difference]: Start difference. First operand 270 states and 324 transitions. Second operand has 26 states, 26 states have (on average 2.6153846153846154) internal successors, (68), 25 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:25,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:25,114 INFO L93 Difference]: Finished difference Result 858 states and 1063 transitions. [2023-04-02 06:30:25,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 06:30:25,115 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.6153846153846154) internal successors, (68), 25 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2023-04-02 06:30:25,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:25,118 INFO L225 Difference]: With dead ends: 858 [2023-04-02 06:30:25,118 INFO L226 Difference]: Without dead ends: 803 [2023-04-02 06:30:25,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=403, Invalid=2047, Unknown=0, NotChecked=0, Total=2450 [2023-04-02 06:30:25,119 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 2626 mSDsluCounter, 6893 mSDsCounter, 0 mSdLazyCounter, 4722 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2626 SdHoareTripleChecker+Valid, 7456 SdHoareTripleChecker+Invalid, 4756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 4722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:25,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2626 Valid, 7456 Invalid, 4756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 4722 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 06:30:25,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2023-04-02 06:30:25,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 285. [2023-04-02 06:30:25,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 271 states have (on average 1.2583025830258303) internal successors, (341), 281 states have internal predecessors, (341), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 344 transitions. [2023-04-02 06:30:25,207 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 344 transitions. Word has length 71 [2023-04-02 06:30:25,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:25,207 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 344 transitions. [2023-04-02 06:30:25,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.6153846153846154) internal successors, (68), 25 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:25,207 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 344 transitions. [2023-04-02 06:30:25,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-02 06:30:25,208 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:25,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:25,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 06:30:25,209 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:25,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:25,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1004175402, now seen corresponding path program 1 times [2023-04-02 06:30:25,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:25,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256521853] [2023-04-02 06:30:25,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:25,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:25,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:25,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:25,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:25,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256521853] [2023-04-02 06:30:25,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256521853] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:25,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:25,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 06:30:25,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318335357] [2023-04-02 06:30:25,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:25,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:30:25,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:25,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:30:25,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:30:25,991 INFO L87 Difference]: Start difference. First operand 285 states and 344 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:28,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:28,274 INFO L93 Difference]: Finished difference Result 687 states and 902 transitions. [2023-04-02 06:30:28,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 06:30:28,274 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2023-04-02 06:30:28,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:28,278 INFO L225 Difference]: With dead ends: 687 [2023-04-02 06:30:28,279 INFO L226 Difference]: Without dead ends: 632 [2023-04-02 06:30:28,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2023-04-02 06:30:28,281 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 1636 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:28,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1636 Valid, 2980 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 06:30:28,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2023-04-02 06:30:28,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 284. [2023-04-02 06:30:28,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 270 states have (on average 1.2555555555555555) internal successors, (339), 280 states have internal predecessors, (339), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:28,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 342 transitions. [2023-04-02 06:30:28,438 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 342 transitions. Word has length 71 [2023-04-02 06:30:28,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:28,439 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 342 transitions. [2023-04-02 06:30:28,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:28,439 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 342 transitions. [2023-04-02 06:30:28,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-02 06:30:28,439 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:28,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:28,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 06:30:28,440 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:28,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:28,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2143068246, now seen corresponding path program 1 times [2023-04-02 06:30:28,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:28,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277404361] [2023-04-02 06:30:28,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:28,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:30,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:30,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:30,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:30,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277404361] [2023-04-02 06:30:30,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277404361] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:30,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:30,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-04-02 06:30:30,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154722048] [2023-04-02 06:30:30,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:30,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-04-02 06:30:30,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:30,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-04-02 06:30:30,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2023-04-02 06:30:30,183 INFO L87 Difference]: Start difference. First operand 284 states and 342 transitions. Second operand has 26 states, 26 states have (on average 2.6153846153846154) internal successors, (68), 25 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:35,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:35,845 INFO L93 Difference]: Finished difference Result 847 states and 1049 transitions. [2023-04-02 06:30:35,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-04-02 06:30:35,845 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.6153846153846154) internal successors, (68), 25 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2023-04-02 06:30:35,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:35,853 INFO L225 Difference]: With dead ends: 847 [2023-04-02 06:30:35,853 INFO L226 Difference]: Without dead ends: 792 [2023-04-02 06:30:35,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=525, Invalid=2127, Unknown=0, NotChecked=0, Total=2652 [2023-04-02 06:30:35,854 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 3529 mSDsluCounter, 7205 mSDsCounter, 0 mSdLazyCounter, 4565 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3529 SdHoareTripleChecker+Valid, 7682 SdHoareTripleChecker+Invalid, 4611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 4565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:35,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3529 Valid, 7682 Invalid, 4611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 4565 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-04-02 06:30:35,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2023-04-02 06:30:35,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 286. [2023-04-02 06:30:35,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 272 states have (on average 1.2573529411764706) internal successors, (342), 282 states have internal predecessors, (342), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:35,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 345 transitions. [2023-04-02 06:30:35,964 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 345 transitions. Word has length 71 [2023-04-02 06:30:35,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:35,964 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 345 transitions. [2023-04-02 06:30:35,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.6153846153846154) internal successors, (68), 25 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:35,964 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 345 transitions. [2023-04-02 06:30:35,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-02 06:30:35,965 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:35,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:35,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 06:30:35,965 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:35,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:35,966 INFO L85 PathProgramCache]: Analyzing trace with hash -456703039, now seen corresponding path program 1 times [2023-04-02 06:30:35,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:35,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65819071] [2023-04-02 06:30:35,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:35,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:36,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:36,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:36,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:36,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65819071] [2023-04-02 06:30:36,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65819071] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:36,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:36,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:30:36,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9087407] [2023-04-02 06:30:36,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:36,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:30:36,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:36,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:30:36,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:30:36,631 INFO L87 Difference]: Start difference. First operand 286 states and 345 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:38,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:38,433 INFO L93 Difference]: Finished difference Result 526 states and 663 transitions. [2023-04-02 06:30:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:30:38,433 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2023-04-02 06:30:38,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:38,435 INFO L225 Difference]: With dead ends: 526 [2023-04-02 06:30:38,435 INFO L226 Difference]: Without dead ends: 520 [2023-04-02 06:30:38,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:30:38,435 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1726 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:38,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 1111 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 06:30:38,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-04-02 06:30:38,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 286. [2023-04-02 06:30:38,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 272 states have (on average 1.2536764705882353) internal successors, (341), 282 states have internal predecessors, (341), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:38,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 344 transitions. [2023-04-02 06:30:38,517 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 344 transitions. Word has length 71 [2023-04-02 06:30:38,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:38,518 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 344 transitions. [2023-04-02 06:30:38,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:38,518 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 344 transitions. [2023-04-02 06:30:38,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-02 06:30:38,518 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:38,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:38,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 06:30:38,519 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:38,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:38,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2130954230, now seen corresponding path program 1 times [2023-04-02 06:30:38,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:38,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743243864] [2023-04-02 06:30:38,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:38,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:39,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:39,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:39,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:39,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743243864] [2023-04-02 06:30:39,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743243864] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:39,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:39,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-04-02 06:30:39,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831494199] [2023-04-02 06:30:39,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:39,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-02 06:30:39,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:39,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-02 06:30:39,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-04-02 06:30:39,513 INFO L87 Difference]: Start difference. First operand 286 states and 344 transitions. Second operand has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 17 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:43,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:43,159 INFO L93 Difference]: Finished difference Result 765 states and 989 transitions. [2023-04-02 06:30:43,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 06:30:43,159 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 17 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2023-04-02 06:30:43,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:43,161 INFO L225 Difference]: With dead ends: 765 [2023-04-02 06:30:43,161 INFO L226 Difference]: Without dead ends: 707 [2023-04-02 06:30:43,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=255, Invalid=935, Unknown=0, NotChecked=0, Total=1190 [2023-04-02 06:30:43,162 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 1845 mSDsluCounter, 3557 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 SdHoareTripleChecker+Valid, 4048 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:43,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1845 Valid, 4048 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 06:30:43,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-04-02 06:30:43,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 286. [2023-04-02 06:30:43,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 272 states have (on average 1.2463235294117647) internal successors, (339), 282 states have internal predecessors, (339), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:43,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 342 transitions. [2023-04-02 06:30:43,261 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 342 transitions. Word has length 71 [2023-04-02 06:30:43,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:43,261 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 342 transitions. [2023-04-02 06:30:43,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 17 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:43,261 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 342 transitions. [2023-04-02 06:30:43,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-04-02 06:30:43,276 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:43,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:43,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 06:30:43,276 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:43,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1580619822, now seen corresponding path program 1 times [2023-04-02 06:30:43,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:43,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686024760] [2023-04-02 06:30:43,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:43,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:44,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:44,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:44,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:44,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686024760] [2023-04-02 06:30:44,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686024760] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:44,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:44,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 06:30:44,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732657321] [2023-04-02 06:30:44,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:44,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:30:44,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:44,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:30:44,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:30:44,144 INFO L87 Difference]: Start difference. First operand 286 states and 342 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:47,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:47,186 INFO L93 Difference]: Finished difference Result 718 states and 938 transitions. [2023-04-02 06:30:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 06:30:47,186 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2023-04-02 06:30:47,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:47,188 INFO L225 Difference]: With dead ends: 718 [2023-04-02 06:30:47,188 INFO L226 Difference]: Without dead ends: 647 [2023-04-02 06:30:47,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2023-04-02 06:30:47,189 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 1739 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 3403 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:47,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1739 Valid, 3403 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 06:30:47,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-04-02 06:30:47,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 269. [2023-04-02 06:30:47,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 257 states have (on average 1.2412451361867705) internal successors, (319), 265 states have internal predecessors, (319), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:47,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 322 transitions. [2023-04-02 06:30:47,283 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 322 transitions. Word has length 72 [2023-04-02 06:30:47,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:47,284 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 322 transitions. [2023-04-02 06:30:47,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:47,284 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 322 transitions. [2023-04-02 06:30:47,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-04-02 06:30:47,284 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:47,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:47,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 06:30:47,285 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:47,285 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:47,285 INFO L85 PathProgramCache]: Analyzing trace with hash 787692338, now seen corresponding path program 1 times [2023-04-02 06:30:47,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:47,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095718608] [2023-04-02 06:30:47,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:47,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:47,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:47,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:47,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:47,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095718608] [2023-04-02 06:30:47,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095718608] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:47,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:47,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 06:30:47,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648862696] [2023-04-02 06:30:47,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:47,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:30:47,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:47,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:30:47,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:30:47,957 INFO L87 Difference]: Start difference. First operand 269 states and 322 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:51,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:51,068 INFO L93 Difference]: Finished difference Result 677 states and 892 transitions. [2023-04-02 06:30:51,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 06:30:51,069 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2023-04-02 06:30:51,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:51,071 INFO L225 Difference]: With dead ends: 677 [2023-04-02 06:30:51,071 INFO L226 Difference]: Without dead ends: 579 [2023-04-02 06:30:51,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2023-04-02 06:30:51,076 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 1374 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:51,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 3083 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 06:30:51,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-04-02 06:30:51,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 218. [2023-04-02 06:30:51,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 209 states have (on average 1.2344497607655502) internal successors, (258), 214 states have internal predecessors, (258), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:51,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 261 transitions. [2023-04-02 06:30:51,159 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 261 transitions. Word has length 72 [2023-04-02 06:30:51,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:51,159 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 261 transitions. [2023-04-02 06:30:51,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:51,159 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 261 transitions. [2023-04-02 06:30:51,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-04-02 06:30:51,160 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:51,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:51,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 06:30:51,161 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:51,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:51,162 INFO L85 PathProgramCache]: Analyzing trace with hash 167038642, now seen corresponding path program 1 times [2023-04-02 06:30:51,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:51,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130445343] [2023-04-02 06:30:51,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:51,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:52,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:52,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:52,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:52,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130445343] [2023-04-02 06:30:52,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130445343] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:52,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:52,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-04-02 06:30:52,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404409905] [2023-04-02 06:30:52,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:52,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 06:30:52,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:52,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 06:30:52,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2023-04-02 06:30:52,635 INFO L87 Difference]: Start difference. First operand 218 states and 261 transitions. Second operand has 25 states, 25 states have (on average 2.76) internal successors, (69), 24 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:57,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:30:57,945 INFO L93 Difference]: Finished difference Result 697 states and 881 transitions. [2023-04-02 06:30:57,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 06:30:57,945 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.76) internal successors, (69), 24 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2023-04-02 06:30:57,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:30:57,947 INFO L225 Difference]: With dead ends: 697 [2023-04-02 06:30:57,947 INFO L226 Difference]: Without dead ends: 639 [2023-04-02 06:30:57,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=385, Invalid=1685, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 06:30:57,948 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 2627 mSDsluCounter, 4713 mSDsCounter, 0 mSdLazyCounter, 3065 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2627 SdHoareTripleChecker+Valid, 5077 SdHoareTripleChecker+Invalid, 3108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 3065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:30:57,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2627 Valid, 5077 Invalid, 3108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 3065 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-02 06:30:57,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2023-04-02 06:30:58,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 231. [2023-04-02 06:30:58,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 222 states have (on average 1.2342342342342343) internal successors, (274), 227 states have internal predecessors, (274), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:58,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 277 transitions. [2023-04-02 06:30:58,039 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 277 transitions. Word has length 72 [2023-04-02 06:30:58,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:30:58,039 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 277 transitions. [2023-04-02 06:30:58,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.76) internal successors, (69), 24 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:30:58,039 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 277 transitions. [2023-04-02 06:30:58,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-04-02 06:30:58,039 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:30:58,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:30:58,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 06:30:58,040 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:30:58,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:30:58,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1934910994, now seen corresponding path program 1 times [2023-04-02 06:30:58,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:30:58,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886149661] [2023-04-02 06:30:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:30:58,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:30:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:58,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:30:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:30:58,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:30:58,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:30:58,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886149661] [2023-04-02 06:30:58,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886149661] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:30:58,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:30:58,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 06:30:58,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924821530] [2023-04-02 06:30:58,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:30:58,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 06:30:58,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:30:58,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 06:30:58,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-02 06:30:58,726 INFO L87 Difference]: Start difference. First operand 231 states and 277 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:00,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:00,707 INFO L93 Difference]: Finished difference Result 498 states and 649 transitions. [2023-04-02 06:31:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 06:31:00,708 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2023-04-02 06:31:00,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:00,709 INFO L225 Difference]: With dead ends: 498 [2023-04-02 06:31:00,709 INFO L226 Difference]: Without dead ends: 355 [2023-04-02 06:31:00,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2023-04-02 06:31:00,710 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 1125 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:00,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1125 Valid, 1005 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 06:31:00,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-04-02 06:31:00,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 142. [2023-04-02 06:31:00,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 137 states have (on average 1.2408759124087592) internal successors, (170), 138 states have internal predecessors, (170), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:00,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 173 transitions. [2023-04-02 06:31:00,775 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 173 transitions. Word has length 72 [2023-04-02 06:31:00,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:00,776 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 173 transitions. [2023-04-02 06:31:00,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:00,776 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 173 transitions. [2023-04-02 06:31:00,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-04-02 06:31:00,776 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:00,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:00,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 06:31:00,776 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:00,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:00,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2006999794, now seen corresponding path program 1 times [2023-04-02 06:31:00,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:00,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002761440] [2023-04-02 06:31:00,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:00,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:01,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:01,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:01,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:01,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002761440] [2023-04-02 06:31:01,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002761440] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:01,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:01,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:31:01,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756033780] [2023-04-02 06:31:01,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:01,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:31:01,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:01,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:31:01,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:31:01,454 INFO L87 Difference]: Start difference. First operand 142 states and 173 transitions. Second operand has 13 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:04,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:04,608 INFO L93 Difference]: Finished difference Result 794 states and 1097 transitions. [2023-04-02 06:31:04,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:31:04,608 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2023-04-02 06:31:04,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:04,610 INFO L225 Difference]: With dead ends: 794 [2023-04-02 06:31:04,610 INFO L226 Difference]: Without dead ends: 720 [2023-04-02 06:31:04,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:31:04,611 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 2783 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:04,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2783 Valid, 1220 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 06:31:04,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2023-04-02 06:31:04,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 147. [2023-04-02 06:31:04,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 142 states have (on average 1.232394366197183) internal successors, (175), 143 states have internal predecessors, (175), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:04,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 178 transitions. [2023-04-02 06:31:04,698 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 178 transitions. Word has length 74 [2023-04-02 06:31:04,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:04,698 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 178 transitions. [2023-04-02 06:31:04,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:04,699 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 178 transitions. [2023-04-02 06:31:04,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-04-02 06:31:04,699 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:04,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:04,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-04-02 06:31:04,699 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:04,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:04,700 INFO L85 PathProgramCache]: Analyzing trace with hash 649189713, now seen corresponding path program 1 times [2023-04-02 06:31:04,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:04,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014819111] [2023-04-02 06:31:04,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:04,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:05,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:05,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:05,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:05,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014819111] [2023-04-02 06:31:05,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014819111] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:05,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:05,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:31:05,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837490136] [2023-04-02 06:31:05,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:05,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:31:05,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:05,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:31:05,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:31:05,333 INFO L87 Difference]: Start difference. First operand 147 states and 178 transitions. Second operand has 10 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:06,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:06,547 INFO L93 Difference]: Finished difference Result 300 states and 386 transitions. [2023-04-02 06:31:06,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 06:31:06,548 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2023-04-02 06:31:06,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:06,549 INFO L225 Difference]: With dead ends: 300 [2023-04-02 06:31:06,549 INFO L226 Difference]: Without dead ends: 226 [2023-04-02 06:31:06,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-04-02 06:31:06,565 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 751 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:06,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 552 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 06:31:06,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-04-02 06:31:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 142. [2023-04-02 06:31:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 137 states have (on average 1.2335766423357664) internal successors, (169), 138 states have internal predecessors, (169), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:06,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2023-04-02 06:31:06,649 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 75 [2023-04-02 06:31:06,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:06,649 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2023-04-02 06:31:06,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:06,649 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2023-04-02 06:31:06,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-04-02 06:31:06,649 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:06,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:06,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 06:31:06,649 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:06,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:06,650 INFO L85 PathProgramCache]: Analyzing trace with hash 896837335, now seen corresponding path program 1 times [2023-04-02 06:31:06,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:06,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636346676] [2023-04-02 06:31:06,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:06,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:08,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:08,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:08,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:08,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636346676] [2023-04-02 06:31:08,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636346676] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:08,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:08,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-04-02 06:31:08,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288993036] [2023-04-02 06:31:08,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:08,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-04-02 06:31:08,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:08,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-04-02 06:31:08,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:31:08,117 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 23 states have internal predecessors, (73), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:11,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:11,760 INFO L93 Difference]: Finished difference Result 598 states and 790 transitions. [2023-04-02 06:31:11,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:31:11,760 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 23 states have internal predecessors, (73), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2023-04-02 06:31:11,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:11,770 INFO L225 Difference]: With dead ends: 598 [2023-04-02 06:31:11,770 INFO L226 Difference]: Without dead ends: 592 [2023-04-02 06:31:11,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=292, Invalid=1514, Unknown=0, NotChecked=0, Total=1806 [2023-04-02 06:31:11,771 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 1657 mSDsluCounter, 5674 mSDsCounter, 0 mSdLazyCounter, 3324 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 6128 SdHoareTripleChecker+Invalid, 3358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 3324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:11,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 6128 Invalid, 3358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 3324 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-02 06:31:11,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-04-02 06:31:11,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 161. [2023-04-02 06:31:11,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.2307692307692308) internal successors, (192), 157 states have internal predecessors, (192), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:11,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 195 transitions. [2023-04-02 06:31:11,936 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 195 transitions. Word has length 76 [2023-04-02 06:31:11,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:11,950 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 195 transitions. [2023-04-02 06:31:11,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 23 states have internal predecessors, (73), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:11,951 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 195 transitions. [2023-04-02 06:31:11,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-02 06:31:11,952 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:11,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:11,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 06:31:11,952 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:11,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:11,953 INFO L85 PathProgramCache]: Analyzing trace with hash -37585741, now seen corresponding path program 1 times [2023-04-02 06:31:11,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:11,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989342171] [2023-04-02 06:31:11,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:11,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:12,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:12,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:12,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989342171] [2023-04-02 06:31:12,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989342171] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:12,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:12,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 06:31:12,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4981055] [2023-04-02 06:31:12,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:12,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:31:12,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:12,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:31:12,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:31:12,857 INFO L87 Difference]: Start difference. First operand 161 states and 195 transitions. Second operand has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 12 states have internal predecessors, (74), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:15,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:15,186 INFO L93 Difference]: Finished difference Result 354 states and 466 transitions. [2023-04-02 06:31:15,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 06:31:15,187 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 12 states have internal predecessors, (74), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2023-04-02 06:31:15,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:15,188 INFO L225 Difference]: With dead ends: 354 [2023-04-02 06:31:15,188 INFO L226 Difference]: Without dead ends: 348 [2023-04-02 06:31:15,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2023-04-02 06:31:15,188 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 885 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:15,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1986 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 06:31:15,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-04-02 06:31:15,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 136. [2023-04-02 06:31:15,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.2348484848484849) internal successors, (163), 132 states have internal predecessors, (163), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:15,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 166 transitions. [2023-04-02 06:31:15,274 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 166 transitions. Word has length 77 [2023-04-02 06:31:15,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:15,275 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 166 transitions. [2023-04-02 06:31:15,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 12 states have internal predecessors, (74), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:15,275 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 166 transitions. [2023-04-02 06:31:15,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:31:15,275 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:15,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:15,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 06:31:15,276 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:15,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:15,276 INFO L85 PathProgramCache]: Analyzing trace with hash 621635541, now seen corresponding path program 1 times [2023-04-02 06:31:15,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:15,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913408336] [2023-04-02 06:31:15,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:15,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:15,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:15,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:15,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913408336] [2023-04-02 06:31:15,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913408336] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:15,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:15,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:31:15,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8606267] [2023-04-02 06:31:15,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:15,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:31:15,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:15,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:31:15,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:31:15,683 INFO L87 Difference]: Start difference. First operand 136 states and 166 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:16,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:16,867 INFO L93 Difference]: Finished difference Result 568 states and 798 transitions. [2023-04-02 06:31:16,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 06:31:16,867 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-04-02 06:31:16,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:16,869 INFO L225 Difference]: With dead ends: 568 [2023-04-02 06:31:16,869 INFO L226 Difference]: Without dead ends: 514 [2023-04-02 06:31:16,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:31:16,870 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 964 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:16,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 1081 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 06:31:16,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2023-04-02 06:31:17,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 188. [2023-04-02 06:31:17,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 184 states have (on average 1.298913043478261) internal successors, (239), 184 states have internal predecessors, (239), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:17,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 242 transitions. [2023-04-02 06:31:17,086 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 242 transitions. Word has length 100 [2023-04-02 06:31:17,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:17,086 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 242 transitions. [2023-04-02 06:31:17,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:17,087 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 242 transitions. [2023-04-02 06:31:17,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:31:17,087 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:17,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:17,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-02 06:31:17,088 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:17,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:17,088 INFO L85 PathProgramCache]: Analyzing trace with hash 678287436, now seen corresponding path program 1 times [2023-04-02 06:31:17,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:17,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393736384] [2023-04-02 06:31:17,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:17,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:17,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:17,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393736384] [2023-04-02 06:31:17,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393736384] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:17,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:17,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:31:17,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588427540] [2023-04-02 06:31:17,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:17,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:31:17,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:17,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:31:17,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:31:17,653 INFO L87 Difference]: Start difference. First operand 188 states and 242 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:19,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:19,127 INFO L93 Difference]: Finished difference Result 666 states and 939 transitions. [2023-04-02 06:31:19,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 06:31:19,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2023-04-02 06:31:19,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:19,130 INFO L225 Difference]: With dead ends: 666 [2023-04-02 06:31:19,130 INFO L226 Difference]: Without dead ends: 560 [2023-04-02 06:31:19,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-04-02 06:31:19,132 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 650 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:19,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 657 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 06:31:19,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-04-02 06:31:19,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 292. [2023-04-02 06:31:19,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 288 states have (on average 1.3611111111111112) internal successors, (392), 288 states have internal predecessors, (392), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:19,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 395 transitions. [2023-04-02 06:31:19,380 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 395 transitions. Word has length 102 [2023-04-02 06:31:19,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:19,380 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 395 transitions. [2023-04-02 06:31:19,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:19,380 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 395 transitions. [2023-04-02 06:31:19,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:31:19,381 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:19,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:19,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-04-02 06:31:19,381 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:19,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:19,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1902370331, now seen corresponding path program 1 times [2023-04-02 06:31:19,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:19,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243957080] [2023-04-02 06:31:19,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:19,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:19,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:19,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:19,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:19,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243957080] [2023-04-02 06:31:19,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243957080] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:19,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:19,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:31:19,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455809139] [2023-04-02 06:31:19,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:19,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:31:19,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:19,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:31:19,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:31:19,822 INFO L87 Difference]: Start difference. First operand 292 states and 395 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:20,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:20,689 INFO L93 Difference]: Finished difference Result 686 states and 965 transitions. [2023-04-02 06:31:20,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 06:31:20,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2023-04-02 06:31:20,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:20,691 INFO L225 Difference]: With dead ends: 686 [2023-04-02 06:31:20,691 INFO L226 Difference]: Without dead ends: 476 [2023-04-02 06:31:20,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:31:20,692 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 66 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:20,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 379 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 06:31:20,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-04-02 06:31:21,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 474. [2023-04-02 06:31:21,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 470 states have (on average 1.372340425531915) internal successors, (645), 470 states have internal predecessors, (645), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:21,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 648 transitions. [2023-04-02 06:31:21,324 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 648 transitions. Word has length 102 [2023-04-02 06:31:21,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:21,324 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 648 transitions. [2023-04-02 06:31:21,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:21,324 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 648 transitions. [2023-04-02 06:31:21,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:31:21,325 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:21,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:21,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-04-02 06:31:21,326 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:21,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:21,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1835876819, now seen corresponding path program 1 times [2023-04-02 06:31:21,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:21,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085634658] [2023-04-02 06:31:21,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:21,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:21,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:21,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:21,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:21,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085634658] [2023-04-02 06:31:21,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085634658] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:21,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:21,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:31:21,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471863825] [2023-04-02 06:31:21,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:21,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:31:21,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:21,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:31:21,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:31:21,928 INFO L87 Difference]: Start difference. First operand 474 states and 648 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:23,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:23,278 INFO L93 Difference]: Finished difference Result 868 states and 1210 transitions. [2023-04-02 06:31:23,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 06:31:23,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2023-04-02 06:31:23,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:23,280 INFO L225 Difference]: With dead ends: 868 [2023-04-02 06:31:23,281 INFO L226 Difference]: Without dead ends: 476 [2023-04-02 06:31:23,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:31:23,281 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 266 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:23,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 386 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 06:31:23,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-04-02 06:31:23,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 474. [2023-04-02 06:31:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 470 states have (on average 1.3680851063829786) internal successors, (643), 470 states have internal predecessors, (643), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:23,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 646 transitions. [2023-04-02 06:31:23,770 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 646 transitions. Word has length 102 [2023-04-02 06:31:23,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:23,770 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 646 transitions. [2023-04-02 06:31:23,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:23,771 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 646 transitions. [2023-04-02 06:31:23,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:31:23,771 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:23,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:23,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-04-02 06:31:23,771 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:23,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:23,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1993560652, now seen corresponding path program 1 times [2023-04-02 06:31:23,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:23,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164660893] [2023-04-02 06:31:23,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:23,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:24,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:24,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:24,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:24,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164660893] [2023-04-02 06:31:24,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164660893] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:24,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:24,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:31:24,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769153368] [2023-04-02 06:31:24,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:24,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:31:24,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:24,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:31:24,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:31:24,229 INFO L87 Difference]: Start difference. First operand 474 states and 646 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:26,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:26,155 INFO L93 Difference]: Finished difference Result 1362 states and 1910 transitions. [2023-04-02 06:31:26,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 06:31:26,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2023-04-02 06:31:26,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:26,158 INFO L225 Difference]: With dead ends: 1362 [2023-04-02 06:31:26,158 INFO L226 Difference]: Without dead ends: 1165 [2023-04-02 06:31:26,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-04-02 06:31:26,159 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 647 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:26,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 717 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 06:31:26,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2023-04-02 06:31:26,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 767. [2023-04-02 06:31:26,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 763 states have (on average 1.3892529488859764) internal successors, (1060), 763 states have internal predecessors, (1060), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1063 transitions. [2023-04-02 06:31:26,931 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1063 transitions. Word has length 102 [2023-04-02 06:31:26,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:26,932 INFO L495 AbstractCegarLoop]: Abstraction has 767 states and 1063 transitions. [2023-04-02 06:31:26,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:26,932 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1063 transitions. [2023-04-02 06:31:26,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:31:26,932 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:26,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:26,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-04-02 06:31:26,933 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:26,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:26,933 INFO L85 PathProgramCache]: Analyzing trace with hash -426257332, now seen corresponding path program 1 times [2023-04-02 06:31:26,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:26,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671390188] [2023-04-02 06:31:26,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:26,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:27,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:27,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:27,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:27,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671390188] [2023-04-02 06:31:27,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671390188] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:27,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:27,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:31:27,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980027317] [2023-04-02 06:31:27,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:27,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:31:27,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:27,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:31:27,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:31:27,319 INFO L87 Difference]: Start difference. First operand 767 states and 1063 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:29,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:29,819 INFO L93 Difference]: Finished difference Result 1557 states and 2188 transitions. [2023-04-02 06:31:29,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 06:31:29,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2023-04-02 06:31:29,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:29,822 INFO L225 Difference]: With dead ends: 1557 [2023-04-02 06:31:29,822 INFO L226 Difference]: Without dead ends: 1360 [2023-04-02 06:31:29,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-04-02 06:31:29,826 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 594 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:29,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 767 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 06:31:29,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2023-04-02 06:31:30,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 962. [2023-04-02 06:31:30,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 958 states have (on average 1.3966597077244258) internal successors, (1338), 958 states have internal predecessors, (1338), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:30,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1341 transitions. [2023-04-02 06:31:30,829 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1341 transitions. Word has length 102 [2023-04-02 06:31:30,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:30,829 INFO L495 AbstractCegarLoop]: Abstraction has 962 states and 1341 transitions. [2023-04-02 06:31:30,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:30,829 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1341 transitions. [2023-04-02 06:31:30,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:31:30,830 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:30,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:30,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-04-02 06:31:30,830 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:30,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:30,831 INFO L85 PathProgramCache]: Analyzing trace with hash -62171572, now seen corresponding path program 1 times [2023-04-02 06:31:30,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:30,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036562288] [2023-04-02 06:31:30,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:30,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:31,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:31,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:31,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036562288] [2023-04-02 06:31:31,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036562288] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:31,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:31,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:31:31,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344538606] [2023-04-02 06:31:31,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:31,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:31:31,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:31,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:31:31,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:31:31,267 INFO L87 Difference]: Start difference. First operand 962 states and 1341 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:33,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:33,910 INFO L93 Difference]: Finished difference Result 1752 states and 2466 transitions. [2023-04-02 06:31:33,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 06:31:33,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2023-04-02 06:31:33,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:33,914 INFO L225 Difference]: With dead ends: 1752 [2023-04-02 06:31:33,914 INFO L226 Difference]: Without dead ends: 1555 [2023-04-02 06:31:33,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-04-02 06:31:33,915 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 644 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:33,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 769 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 06:31:33,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2023-04-02 06:31:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1157. [2023-04-02 06:31:35,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1153 states have (on average 1.401561144839549) internal successors, (1616), 1153 states have internal predecessors, (1616), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:35,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1619 transitions. [2023-04-02 06:31:35,129 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1619 transitions. Word has length 102 [2023-04-02 06:31:35,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:35,129 INFO L495 AbstractCegarLoop]: Abstraction has 1157 states and 1619 transitions. [2023-04-02 06:31:35,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:35,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1619 transitions. [2023-04-02 06:31:35,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-04-02 06:31:35,130 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:35,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:35,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-04-02 06:31:35,130 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:35,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:35,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1178433170, now seen corresponding path program 1 times [2023-04-02 06:31:35,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:35,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345230676] [2023-04-02 06:31:35,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:35,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:35,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:35,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:35,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345230676] [2023-04-02 06:31:35,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345230676] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:35,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:35,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:31:35,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291764807] [2023-04-02 06:31:35,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:35,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:31:35,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:35,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:31:35,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:31:35,654 INFO L87 Difference]: Start difference. First operand 1157 states and 1619 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:38,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:38,550 INFO L93 Difference]: Finished difference Result 2889 states and 4066 transitions. [2023-04-02 06:31:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:31:38,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2023-04-02 06:31:38,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:38,555 INFO L225 Difference]: With dead ends: 2889 [2023-04-02 06:31:38,555 INFO L226 Difference]: Without dead ends: 1814 [2023-04-02 06:31:38,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:31:38,557 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 80 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:38,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 347 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 06:31:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2023-04-02 06:31:40,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1724. [2023-04-02 06:31:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1720 states have (on average 1.3941860465116278) internal successors, (2398), 1720 states have internal predecessors, (2398), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:40,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2401 transitions. [2023-04-02 06:31:40,452 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2401 transitions. Word has length 103 [2023-04-02 06:31:40,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:40,452 INFO L495 AbstractCegarLoop]: Abstraction has 1724 states and 2401 transitions. [2023-04-02 06:31:40,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:40,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2401 transitions. [2023-04-02 06:31:40,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-04-02 06:31:40,453 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:40,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:40,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-04-02 06:31:40,453 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:40,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:40,463 INFO L85 PathProgramCache]: Analyzing trace with hash -232857139, now seen corresponding path program 1 times [2023-04-02 06:31:40,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:40,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89274156] [2023-04-02 06:31:40,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:40,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:40,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:40,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:40,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:40,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89274156] [2023-04-02 06:31:40,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89274156] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:40,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:40,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:31:40,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128721708] [2023-04-02 06:31:40,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:40,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:31:40,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:40,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:31:40,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:31:40,830 INFO L87 Difference]: Start difference. First operand 1724 states and 2401 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:43,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:43,525 INFO L93 Difference]: Finished difference Result 3420 states and 4789 transitions. [2023-04-02 06:31:43,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:31:43,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2023-04-02 06:31:43,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:43,531 INFO L225 Difference]: With dead ends: 3420 [2023-04-02 06:31:43,531 INFO L226 Difference]: Without dead ends: 1778 [2023-04-02 06:31:43,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:31:43,549 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 91 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:43,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 264 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 06:31:43,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2023-04-02 06:31:45,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1776. [2023-04-02 06:31:45,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1772 states have (on average 1.381489841986456) internal successors, (2448), 1772 states have internal predecessors, (2448), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:45,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2451 transitions. [2023-04-02 06:31:45,523 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2451 transitions. Word has length 104 [2023-04-02 06:31:45,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:45,523 INFO L495 AbstractCegarLoop]: Abstraction has 1776 states and 2451 transitions. [2023-04-02 06:31:45,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:45,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2451 transitions. [2023-04-02 06:31:45,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-04-02 06:31:45,524 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:45,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:45,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-04-02 06:31:45,524 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:45,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:45,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1363910670, now seen corresponding path program 1 times [2023-04-02 06:31:45,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:45,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668989979] [2023-04-02 06:31:45,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:45,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:45,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:45,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:45,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668989979] [2023-04-02 06:31:45,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668989979] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:45,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:45,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:31:45,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168101766] [2023-04-02 06:31:45,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:45,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:31:45,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:45,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:31:45,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:31:45,990 INFO L87 Difference]: Start difference. First operand 1776 states and 2451 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:50,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:31:50,471 INFO L93 Difference]: Finished difference Result 5028 states and 6941 transitions. [2023-04-02 06:31:50,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:31:50,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2023-04-02 06:31:50,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:31:50,479 INFO L225 Difference]: With dead ends: 5028 [2023-04-02 06:31:50,479 INFO L226 Difference]: Without dead ends: 3334 [2023-04-02 06:31:50,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:31:50,481 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 73 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:31:50,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 344 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 06:31:50,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2023-04-02 06:31:54,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 3196. [2023-04-02 06:31:54,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3196 states, 3192 states have (on average 1.368734335839599) internal successors, (4369), 3192 states have internal predecessors, (4369), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:54,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3196 states to 3196 states and 4372 transitions. [2023-04-02 06:31:54,351 INFO L78 Accepts]: Start accepts. Automaton has 3196 states and 4372 transitions. Word has length 104 [2023-04-02 06:31:54,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:31:54,351 INFO L495 AbstractCegarLoop]: Abstraction has 3196 states and 4372 transitions. [2023-04-02 06:31:54,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:31:54,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3196 states and 4372 transitions. [2023-04-02 06:31:54,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-04-02 06:31:54,352 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:31:54,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:31:54,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-04-02 06:31:54,352 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:31:54,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:31:54,353 INFO L85 PathProgramCache]: Analyzing trace with hash -2096815521, now seen corresponding path program 1 times [2023-04-02 06:31:54,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:31:54,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624335853] [2023-04-02 06:31:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:31:54,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:31:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:54,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:31:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:31:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:31:54,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:31:54,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624335853] [2023-04-02 06:31:54,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624335853] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:31:54,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:31:54,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:31:54,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301434984] [2023-04-02 06:31:54,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:31:54,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:31:54,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:31:54,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:31:54,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:31:54,786 INFO L87 Difference]: Start difference. First operand 3196 states and 4372 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:03,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:03,367 INFO L93 Difference]: Finished difference Result 9152 states and 12466 transitions. [2023-04-02 06:32:03,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:32:03,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2023-04-02 06:32:03,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:03,379 INFO L225 Difference]: With dead ends: 9152 [2023-04-02 06:32:03,379 INFO L226 Difference]: Without dead ends: 6038 [2023-04-02 06:32:03,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:32:03,385 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 66 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:03,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 344 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 06:32:03,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2023-04-02 06:32:10,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 5764. [2023-04-02 06:32:10,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5764 states, 5760 states have (on average 1.3487847222222222) internal successors, (7769), 5760 states have internal predecessors, (7769), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:10,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5764 states to 5764 states and 7772 transitions. [2023-04-02 06:32:10,489 INFO L78 Accepts]: Start accepts. Automaton has 5764 states and 7772 transitions. Word has length 105 [2023-04-02 06:32:10,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:10,489 INFO L495 AbstractCegarLoop]: Abstraction has 5764 states and 7772 transitions. [2023-04-02 06:32:10,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:10,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5764 states and 7772 transitions. [2023-04-02 06:32:10,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-04-02 06:32:10,490 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:10,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:32:10,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-04-02 06:32:10,490 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:10,491 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:10,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2107464102, now seen corresponding path program 1 times [2023-04-02 06:32:10,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:10,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776365583] [2023-04-02 06:32:10,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:10,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:10,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:10,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:32:10,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:10,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776365583] [2023-04-02 06:32:10,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776365583] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:10,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:10,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:32:10,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863450426] [2023-04-02 06:32:10,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:10,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:32:10,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:10,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:32:10,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:32:10,958 INFO L87 Difference]: Start difference. First operand 5764 states and 7772 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:25,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:32:25,302 INFO L93 Difference]: Finished difference Result 16584 states and 22190 transitions. [2023-04-02 06:32:25,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:32:25,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2023-04-02 06:32:25,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:32:25,320 INFO L225 Difference]: With dead ends: 16584 [2023-04-02 06:32:25,321 INFO L226 Difference]: Without dead ends: 10902 [2023-04-02 06:32:25,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:32:25,327 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 56 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:32:25,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 344 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 06:32:25,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10902 states. [2023-04-02 06:32:38,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10902 to 10356. [2023-04-02 06:32:38,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10356 states, 10352 states have (on average 1.3219667697063369) internal successors, (13685), 10352 states have internal predecessors, (13685), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:38,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10356 states to 10356 states and 13688 transitions. [2023-04-02 06:32:38,149 INFO L78 Accepts]: Start accepts. Automaton has 10356 states and 13688 transitions. Word has length 106 [2023-04-02 06:32:38,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:32:38,149 INFO L495 AbstractCegarLoop]: Abstraction has 10356 states and 13688 transitions. [2023-04-02 06:32:38,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:32:38,149 INFO L276 IsEmpty]: Start isEmpty. Operand 10356 states and 13688 transitions. [2023-04-02 06:32:38,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-04-02 06:32:38,150 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:32:38,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:32:38,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-04-02 06:32:38,151 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:32:38,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:32:38,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1874891755, now seen corresponding path program 1 times [2023-04-02 06:32:38,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:32:38,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423219550] [2023-04-02 06:32:38,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:32:38,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:32:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:38,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:32:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:32:38,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:32:38,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:32:38,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423219550] [2023-04-02 06:32:38,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423219550] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:32:38,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:32:38,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 06:32:38,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425442201] [2023-04-02 06:32:38,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:32:38,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 06:32:38,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:32:38,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 06:32:38,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 06:32:38,809 INFO L87 Difference]: Start difference. First operand 10356 states and 13688 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:00,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:33:00,743 INFO L93 Difference]: Finished difference Result 15683 states and 20707 transitions. [2023-04-02 06:33:00,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 06:33:00,744 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2023-04-02 06:33:00,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:33:00,775 INFO L225 Difference]: With dead ends: 15683 [2023-04-02 06:33:00,775 INFO L226 Difference]: Without dead ends: 15681 [2023-04-02 06:33:00,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:33:00,782 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 258 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:33:00,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 826 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 06:33:00,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15681 states. [2023-04-02 06:33:14,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15681 to 10596. [2023-04-02 06:33:14,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10596 states, 10592 states have (on average 1.305608006042296) internal successors, (13829), 10592 states have internal predecessors, (13829), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:14,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10596 states to 10596 states and 13832 transitions. [2023-04-02 06:33:14,638 INFO L78 Accepts]: Start accepts. Automaton has 10596 states and 13832 transitions. Word has length 107 [2023-04-02 06:33:14,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:33:14,638 INFO L495 AbstractCegarLoop]: Abstraction has 10596 states and 13832 transitions. [2023-04-02 06:33:14,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:14,638 INFO L276 IsEmpty]: Start isEmpty. Operand 10596 states and 13832 transitions. [2023-04-02 06:33:14,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-04-02 06:33:14,650 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:33:14,650 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:33:14,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-04-02 06:33:14,651 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-04-02 06:33:14,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:33:14,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1868616448, now seen corresponding path program 1 times [2023-04-02 06:33:14,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:33:14,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043195903] [2023-04-02 06:33:14,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:33:14,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:33:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:33:15,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:33:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:33:15,245 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 06:33:15,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:33:15,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043195903] [2023-04-02 06:33:15,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043195903] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:33:15,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:33:15,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:33:15,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825762598] [2023-04-02 06:33:15,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:33:15,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:33:15,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:33:15,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:33:15,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:33:15,248 INFO L87 Difference]: Start difference. First operand 10596 states and 13832 transitions. Second operand has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:33:45,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:33:45,991 INFO L93 Difference]: Finished difference Result 31918 states and 41618 transitions. [2023-04-02 06:33:45,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 06:33:45,991 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2023-04-02 06:33:45,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:33:46,035 INFO L225 Difference]: With dead ends: 31918 [2023-04-02 06:33:46,035 INFO L226 Difference]: Without dead ends: 21397 [2023-04-02 06:33:46,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-04-02 06:33:46,048 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 697 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:33:46,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 506 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 06:33:46,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21397 states.