/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/product-lines/minepump_spec5_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:29:46,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:29:46,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:29:46,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:29:46,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:29:46,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:29:46,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:29:46,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:29:46,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:29:46,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:29:46,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:29:46,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:29:46,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:29:46,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:29:46,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:29:46,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:29:46,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:29:46,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:29:46,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:29:46,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:29:46,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:29:46,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:29:46,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:29:46,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:29:46,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:29:46,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:29:46,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:29:46,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:29:46,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:29:46,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:29:46,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:29:46,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:29:46,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:29:46,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:29:46,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:29:46,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:29:46,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:29:46,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:29:46,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:29:46,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:29:46,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:29:46,244 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 04:29:46,277 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:29:46,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:29:46,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:29:46,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:29:46,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:29:46,279 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:29:46,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:29:46,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:29:46,279 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:29:46,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:29:46,280 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:29:46,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:29:46,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:29:46,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:29:46,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:29:46,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:29:46,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:29:46,280 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:29:46,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:29:46,281 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:29:46,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:29:46,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:29:46,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:29:46,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:29:46,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:29:46,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:29:46,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:29:46,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:29:46,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:29:46,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:29:46,282 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:29:46,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:29:46,282 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:29:46,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:29:46,282 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:29:46,283 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:29:46,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:29:46,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:29:46,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:29:46,737 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:29:46,738 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:29:46,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c [2023-04-02 04:29:47,974 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:29:48,142 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:29:48,142 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c [2023-04-02 04:29:48,149 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1447a8dd3/f1371edac91b4fef860acd02bcb3c2f8/FLAG6769fcd2c [2023-04-02 04:29:48,161 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1447a8dd3/f1371edac91b4fef860acd02bcb3c2f8 [2023-04-02 04:29:48,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:29:48,164 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:29:48,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:29:48,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:29:48,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:29:48,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:29:48" (1/1) ... [2023-04-02 04:29:48,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f120315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:48, skipping insertion in model container [2023-04-02 04:29:48,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:29:48" (1/1) ... [2023-04-02 04:29:48,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:29:48,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:29:48,409 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/product-lines/minepump_spec5_product60.cil.c[18075,18088] [2023-04-02 04:29:48,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:29:48,423 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:29:48,470 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/product-lines/minepump_spec5_product60.cil.c[18075,18088] [2023-04-02 04:29:48,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:29:48,496 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:29:48,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:48 WrapperNode [2023-04-02 04:29:48,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:29:48,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:29:48,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:29:48,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:29:48,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:48" (1/1) ... [2023-04-02 04:29:48,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:48" (1/1) ... [2023-04-02 04:29:48,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:48" (1/1) ... [2023-04-02 04:29:48,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:48" (1/1) ... [2023-04-02 04:29:48,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:48" (1/1) ... [2023-04-02 04:29:48,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:48" (1/1) ... [2023-04-02 04:29:48,557 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:48" (1/1) ... [2023-04-02 04:29:48,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:48" (1/1) ... [2023-04-02 04:29:48,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:29:48,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:29:48,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:29:48,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:29:48,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:48" (1/1) ... [2023-04-02 04:29:48,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:29:48,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:29:48,594 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 04:29:48,600 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 04:29:48,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:29:48,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:29:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:29:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:29:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:29:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:29:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:29:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:29:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-04-02 04:29:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:29:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:29:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:29:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:29:48,650 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:29:48,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:29:48,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-02 04:29:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:29:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-02 04:29:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:29:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2023-04-02 04:29:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2023-04-02 04:29:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2023-04-02 04:29:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:29:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:29:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:29:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:29:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:29:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:29:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:29:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:29:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:29:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:29:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:29:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:29:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:29:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:29:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:29:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:29:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:29:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:29:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:29:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:29:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:29:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:29:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:29:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-02 04:29:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:29:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:29:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:29:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:29:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:29:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:29:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:29:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:29:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:29:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:29:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-02 04:29:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:29:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:29:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:29:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:29:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:29:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:29:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-02 04:29:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:29:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:29:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2023-04-02 04:29:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:29:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:29:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:29:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:29:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:29:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:29:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:29:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:29:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:29:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:29:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:29:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:29:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:29:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:29:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:29:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:29:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:29:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:29:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:29:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:29:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:29:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:29:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:29:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:29:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:29:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:29:48,898 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:29:48,900 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:29:49,394 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:29:49,413 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:29:49,413 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:29:49,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:29:49 BoogieIcfgContainer [2023-04-02 04:29:49,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:29:49,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:29:49,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:29:49,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:29:49,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:29:48" (1/3) ... [2023-04-02 04:29:49,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710391c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:29:49, skipping insertion in model container [2023-04-02 04:29:49,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:48" (2/3) ... [2023-04-02 04:29:49,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710391c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:29:49, skipping insertion in model container [2023-04-02 04:29:49,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:29:49" (3/3) ... [2023-04-02 04:29:49,420 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product60.cil.c [2023-04-02 04:29:49,430 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:29:49,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:29:49,460 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:29:49,465 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;@77a19aba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:29:49,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:29:49,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 114 states have (on average 1.280701754385965) internal successors, (146), 130 states have internal predecessors, (146), 54 states have call successors, (54), 35 states have call predecessors, (54), 35 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2023-04-02 04:29:49,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-02 04:29:49,481 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:49,485 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 04:29:49,486 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:49,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:49,490 INFO L85 PathProgramCache]: Analyzing trace with hash 812380060, now seen corresponding path program 1 times [2023-04-02 04:29:49,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:49,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806859571] [2023-04-02 04:29:49,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:49,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:49,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:49,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:49,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:49,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:49,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:49,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:49,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:29:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:49,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:49,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:29:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:29:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:49,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:49,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:49,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806859571] [2023-04-02 04:29:49,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806859571] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:49,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:49,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:29:49,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509356834] [2023-04-02 04:29:49,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:49,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:29:49,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:49,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:29:49,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:29:49,823 INFO L87 Difference]: Start difference. First operand has 206 states, 114 states have (on average 1.280701754385965) internal successors, (146), 130 states have internal predecessors, (146), 54 states have call successors, (54), 35 states have call predecessors, (54), 35 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:29:50,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:50,235 INFO L93 Difference]: Finished difference Result 360 states and 456 transitions. [2023-04-02 04:29:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 04:29:50,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 59 [2023-04-02 04:29:50,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:50,248 INFO L225 Difference]: With dead ends: 360 [2023-04-02 04:29:50,248 INFO L226 Difference]: Without dead ends: 198 [2023-04-02 04:29:50,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:29:50,255 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 213 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:50,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 77 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:29:50,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-04-02 04:29:50,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 163. [2023-04-02 04:29:50,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 95 states have (on average 1.231578947368421) internal successors, (117), 108 states have internal predecessors, (117), 39 states have call successors, (39), 33 states have call predecessors, (39), 28 states have return successors, (34), 29 states have call predecessors, (34), 34 states have call successors, (34) [2023-04-02 04:29:50,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 190 transitions. [2023-04-02 04:29:50,322 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 190 transitions. Word has length 59 [2023-04-02 04:29:50,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:50,323 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 190 transitions. [2023-04-02 04:29:50,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:29:50,323 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 190 transitions. [2023-04-02 04:29:50,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-04-02 04:29:50,330 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:50,330 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 04:29:50,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:29:50,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:50,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:50,330 INFO L85 PathProgramCache]: Analyzing trace with hash -42309500, now seen corresponding path program 1 times [2023-04-02 04:29:50,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:50,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826258106] [2023-04-02 04:29:50,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:50,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:50,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:50,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:50,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:50,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:50,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:50,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:50,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:29:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:50,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:50,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:29:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:50,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 04:29:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:50,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:50,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826258106] [2023-04-02 04:29:50,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826258106] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:50,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:50,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 04:29:50,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979099435] [2023-04-02 04:29:50,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:50,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 04:29:50,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:50,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 04:29:50,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:29:50,481 INFO L87 Difference]: Start difference. First operand 163 states and 190 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:29:50,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:50,832 INFO L93 Difference]: Finished difference Result 295 states and 356 transitions. [2023-04-02 04:29:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 04:29:50,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 60 [2023-04-02 04:29:50,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:50,835 INFO L225 Difference]: With dead ends: 295 [2023-04-02 04:29:50,835 INFO L226 Difference]: Without dead ends: 188 [2023-04-02 04:29:50,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:29:50,836 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 151 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:50,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 63 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:29:50,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-04-02 04:29:50,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 154. [2023-04-02 04:29:50,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 89 states have (on average 1.2359550561797752) internal successors, (110), 102 states have internal predecessors, (110), 36 states have call successors, (36), 32 states have call predecessors, (36), 28 states have return successors, (32), 27 states have call predecessors, (32), 32 states have call successors, (32) [2023-04-02 04:29:50,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 178 transitions. [2023-04-02 04:29:50,862 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 178 transitions. Word has length 60 [2023-04-02 04:29:50,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:50,862 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 178 transitions. [2023-04-02 04:29:50,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:29:50,862 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 178 transitions. [2023-04-02 04:29:50,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 04:29:50,863 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:50,863 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 04:29:50,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:29:50,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:50,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:50,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1022928387, now seen corresponding path program 1 times [2023-04-02 04:29:50,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:50,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040650345] [2023-04-02 04:29:50,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:50,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:51,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:51,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:51,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:51,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:51,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:51,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:51,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:29:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:51,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:29:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:51,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:29:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:51,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:51,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:51,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040650345] [2023-04-02 04:29:51,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040650345] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:51,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:51,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:29:51,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820188470] [2023-04-02 04:29:51,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:51,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:29:51,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:51,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:29:51,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:29:51,151 INFO L87 Difference]: Start difference. First operand 154 states and 178 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 04:29:52,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:52,091 INFO L93 Difference]: Finished difference Result 515 states and 629 transitions. [2023-04-02 04:29:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 04:29:52,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 65 [2023-04-02 04:29:52,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:52,096 INFO L225 Difference]: With dead ends: 515 [2023-04-02 04:29:52,096 INFO L226 Difference]: Without dead ends: 389 [2023-04-02 04:29:52,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-04-02 04:29:52,098 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 522 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:52,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 137 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 04:29:52,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-04-02 04:29:52,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 324. [2023-04-02 04:29:52,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 194 states have (on average 1.2731958762886597) internal successors, (247), 219 states have internal predecessors, (247), 72 states have call successors, (72), 63 states have call predecessors, (72), 57 states have return successors, (69), 56 states have call predecessors, (69), 68 states have call successors, (69) [2023-04-02 04:29:52,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 388 transitions. [2023-04-02 04:29:52,157 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 388 transitions. Word has length 65 [2023-04-02 04:29:52,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:52,158 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 388 transitions. [2023-04-02 04:29:52,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 04:29:52,158 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 388 transitions. [2023-04-02 04:29:52,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 04:29:52,159 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:52,160 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 04:29:52,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:29:52,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:52,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:52,161 INFO L85 PathProgramCache]: Analyzing trace with hash 871374420, now seen corresponding path program 1 times [2023-04-02 04:29:52,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:52,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342380292] [2023-04-02 04:29:52,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:52,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:52,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:52,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:52,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:52,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:52,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:52,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:29:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:52,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:29:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:52,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:52,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:29:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:52,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 04:29:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:52,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 04:29:52,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:52,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342380292] [2023-04-02 04:29:52,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342380292] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:52,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:52,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:29:52,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320529745] [2023-04-02 04:29:52,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:52,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:29:52,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:52,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:29:52,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:29:52,388 INFO L87 Difference]: Start difference. First operand 324 states and 388 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 04:29:53,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:53,048 INFO L93 Difference]: Finished difference Result 819 states and 1054 transitions. [2023-04-02 04:29:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 04:29:53,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 70 [2023-04-02 04:29:53,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:53,051 INFO L225 Difference]: With dead ends: 819 [2023-04-02 04:29:53,051 INFO L226 Difference]: Without dead ends: 523 [2023-04-02 04:29:53,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2023-04-02 04:29:53,052 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 375 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:53,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 83 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:29:53,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-04-02 04:29:53,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 455. [2023-04-02 04:29:53,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 273 states have (on average 1.2271062271062272) internal successors, (335), 295 states have internal predecessors, (335), 93 states have call successors, (93), 82 states have call predecessors, (93), 88 states have return successors, (115), 92 states have call predecessors, (115), 89 states have call successors, (115) [2023-04-02 04:29:53,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 543 transitions. [2023-04-02 04:29:53,150 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 543 transitions. Word has length 70 [2023-04-02 04:29:53,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:53,150 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 543 transitions. [2023-04-02 04:29:53,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 04:29:53,151 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 543 transitions. [2023-04-02 04:29:53,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-04-02 04:29:53,154 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:53,155 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:53,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:29:53,155 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:53,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:53,156 INFO L85 PathProgramCache]: Analyzing trace with hash -266947034, now seen corresponding path program 1 times [2023-04-02 04:29:53,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:53,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488132901] [2023-04-02 04:29:53,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:53,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:29:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 04:29:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 04:29:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 04:29:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:53,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:53,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:53,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488132901] [2023-04-02 04:29:53,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488132901] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:53,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:53,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:29:53,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823068584] [2023-04-02 04:29:53,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:53,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:29:53,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:53,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:29:53,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:29:53,370 INFO L87 Difference]: Start difference. First operand 455 states and 543 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 04:29:54,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:54,082 INFO L93 Difference]: Finished difference Result 975 states and 1246 transitions. [2023-04-02 04:29:54,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:29:54,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 108 [2023-04-02 04:29:54,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:54,100 INFO L225 Difference]: With dead ends: 975 [2023-04-02 04:29:54,100 INFO L226 Difference]: Without dead ends: 548 [2023-04-02 04:29:54,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:29:54,105 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 170 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:54,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 96 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:29:54,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-04-02 04:29:54,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 468. [2023-04-02 04:29:54,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 283 states have (on average 1.2190812720848057) internal successors, (345), 305 states have internal predecessors, (345), 93 states have call successors, (93), 82 states have call predecessors, (93), 91 states have return successors, (119), 94 states have call predecessors, (119), 89 states have call successors, (119) [2023-04-02 04:29:54,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 557 transitions. [2023-04-02 04:29:54,176 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 557 transitions. Word has length 108 [2023-04-02 04:29:54,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:54,176 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 557 transitions. [2023-04-02 04:29:54,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 04:29:54,176 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 557 transitions. [2023-04-02 04:29:54,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-04-02 04:29:54,178 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:54,178 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:54,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:29:54,179 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:54,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:54,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1661325668, now seen corresponding path program 1 times [2023-04-02 04:29:54,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:54,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732814562] [2023-04-02 04:29:54,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:54,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:29:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 04:29:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 04:29:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 04:29:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:54,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:54,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732814562] [2023-04-02 04:29:54,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732814562] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:54,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:54,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 04:29:54,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676030561] [2023-04-02 04:29:54,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:54,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 04:29:54,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:54,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 04:29:54,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:29:54,385 INFO L87 Difference]: Start difference. First operand 468 states and 557 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 04:29:55,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:55,263 INFO L93 Difference]: Finished difference Result 998 states and 1270 transitions. [2023-04-02 04:29:55,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:29:55,264 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 108 [2023-04-02 04:29:55,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:55,267 INFO L225 Difference]: With dead ends: 998 [2023-04-02 04:29:55,267 INFO L226 Difference]: Without dead ends: 558 [2023-04-02 04:29:55,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-04-02 04:29:55,272 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 259 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:55,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 118 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 04:29:55,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-04-02 04:29:55,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 476. [2023-04-02 04:29:55,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 289 states have (on average 1.2145328719723183) internal successors, (351), 311 states have internal predecessors, (351), 93 states have call successors, (93), 82 states have call predecessors, (93), 93 states have return successors, (121), 96 states have call predecessors, (121), 89 states have call successors, (121) [2023-04-02 04:29:55,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 565 transitions. [2023-04-02 04:29:55,341 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 565 transitions. Word has length 108 [2023-04-02 04:29:55,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:55,341 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 565 transitions. [2023-04-02 04:29:55,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 04:29:55,341 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 565 transitions. [2023-04-02 04:29:55,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-04-02 04:29:55,342 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:55,342 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:55,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:29:55,343 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:55,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:55,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1420785539, now seen corresponding path program 1 times [2023-04-02 04:29:55,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:55,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443939760] [2023-04-02 04:29:55,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:55,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:29:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 04:29:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 04:29:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 04:29:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:55,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:55,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:55,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443939760] [2023-04-02 04:29:55,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443939760] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:55,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:55,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 04:29:55,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344489336] [2023-04-02 04:29:55,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:55,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 04:29:55,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:55,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 04:29:55,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:29:55,644 INFO L87 Difference]: Start difference. First operand 476 states and 565 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 5 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2023-04-02 04:29:56,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:56,423 INFO L93 Difference]: Finished difference Result 1479 states and 1900 transitions. [2023-04-02 04:29:56,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 04:29:56,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 5 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 108 [2023-04-02 04:29:56,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:56,429 INFO L225 Difference]: With dead ends: 1479 [2023-04-02 04:29:56,429 INFO L226 Difference]: Without dead ends: 1031 [2023-04-02 04:29:56,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:29:56,433 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 754 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:56,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 110 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:29:56,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2023-04-02 04:29:56,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 953. [2023-04-02 04:29:56,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 594 states have (on average 1.2003367003367003) internal successors, (713), 638 states have internal predecessors, (713), 184 states have call successors, (184), 167 states have call predecessors, (184), 174 states have return successors, (254), 179 states have call predecessors, (254), 180 states have call successors, (254) [2023-04-02 04:29:56,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1151 transitions. [2023-04-02 04:29:56,521 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1151 transitions. Word has length 108 [2023-04-02 04:29:56,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:56,521 INFO L495 AbstractCegarLoop]: Abstraction has 953 states and 1151 transitions. [2023-04-02 04:29:56,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 5 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2023-04-02 04:29:56,521 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1151 transitions. [2023-04-02 04:29:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-04-02 04:29:56,523 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:56,523 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 04:29:56,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:29:56,523 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:56,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:56,523 INFO L85 PathProgramCache]: Analyzing trace with hash 486705885, now seen corresponding path program 1 times [2023-04-02 04:29:56,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:56,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016760483] [2023-04-02 04:29:56,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:56,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:29:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 04:29:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 04:29:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 04:29:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 04:29:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:56,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:56,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016760483] [2023-04-02 04:29:56,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016760483] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:56,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:56,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:29:56,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736736498] [2023-04-02 04:29:56,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:56,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:29:56,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:56,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:29:56,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:29:56,805 INFO L87 Difference]: Start difference. First operand 953 states and 1151 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 8 states have internal predecessors, (66), 6 states have call successors, (25), 8 states have call predecessors, (25), 5 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2023-04-02 04:29:58,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:58,690 INFO L93 Difference]: Finished difference Result 2780 states and 3617 transitions. [2023-04-02 04:29:58,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-04-02 04:29:58,690 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 8 states have internal predecessors, (66), 6 states have call successors, (25), 8 states have call predecessors, (25), 5 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) Word has length 112 [2023-04-02 04:29:58,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:58,697 INFO L225 Difference]: With dead ends: 2780 [2023-04-02 04:29:58,697 INFO L226 Difference]: Without dead ends: 2047 [2023-04-02 04:29:58,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=431, Invalid=1731, Unknown=0, NotChecked=0, Total=2162 [2023-04-02 04:29:58,699 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 842 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:58,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 299 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 04:29:58,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2023-04-02 04:29:58,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1674. [2023-04-02 04:29:58,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 1039 states have (on average 1.1934552454282965) internal successors, (1240), 1113 states have internal predecessors, (1240), 322 states have call successors, (322), 286 states have call predecessors, (322), 312 states have return successors, (446), 327 states have call predecessors, (446), 318 states have call successors, (446) [2023-04-02 04:29:58,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 2008 transitions. [2023-04-02 04:29:58,823 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 2008 transitions. Word has length 112 [2023-04-02 04:29:58,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:58,824 INFO L495 AbstractCegarLoop]: Abstraction has 1674 states and 2008 transitions. [2023-04-02 04:29:58,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 8 states have internal predecessors, (66), 6 states have call successors, (25), 8 states have call predecessors, (25), 5 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2023-04-02 04:29:58,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 2008 transitions. [2023-04-02 04:29:58,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-04-02 04:29:58,828 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:58,828 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:58,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:29:58,828 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:58,828 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:58,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1596544282, now seen corresponding path program 1 times [2023-04-02 04:29:58,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:58,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46991562] [2023-04-02 04:29:58,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:58,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:29:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:29:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:29:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:29:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 04:29:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 04:29:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 04:29:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:29:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-04-02 04:29:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-04-02 04:29:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,179 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-02 04:29:59,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:59,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46991562] [2023-04-02 04:29:59,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46991562] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:29:59,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223178232] [2023-04-02 04:29:59,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:59,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:29:59,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:29:59,182 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:29:59,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 04:29:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-02 04:29:59,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:29:59,551 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 28 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:29:59,551 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:29:59,920 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-02 04:29:59,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223178232] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:29:59,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:29:59,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7, 7] total 23 [2023-04-02 04:29:59,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574877815] [2023-04-02 04:29:59,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:29:59,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-04-02 04:29:59,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:59,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-04-02 04:29:59,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2023-04-02 04:29:59,923 INFO L87 Difference]: Start difference. First operand 1674 states and 2008 transitions. Second operand has 23 states, 22 states have (on average 7.590909090909091) internal successors, (167), 14 states have internal predecessors, (167), 8 states have call successors, (65), 11 states have call predecessors, (65), 10 states have return successors, (52), 9 states have call predecessors, (52), 7 states have call successors, (52) [2023-04-02 04:30:03,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:30:03,234 INFO L93 Difference]: Finished difference Result 3675 states and 4555 transitions. [2023-04-02 04:30:03,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-04-02 04:30:03,235 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.590909090909091) internal successors, (167), 14 states have internal predecessors, (167), 8 states have call successors, (65), 11 states have call predecessors, (65), 10 states have return successors, (52), 9 states have call predecessors, (52), 7 states have call successors, (52) Word has length 174 [2023-04-02 04:30:03,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:30:03,242 INFO L225 Difference]: With dead ends: 3675 [2023-04-02 04:30:03,242 INFO L226 Difference]: Without dead ends: 2209 [2023-04-02 04:30:03,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 413 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1769 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1128, Invalid=5034, Unknown=0, NotChecked=0, Total=6162 [2023-04-02 04:30:03,265 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 757 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 4425 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 4929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 4425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:30:03,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 1294 Invalid, 4929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [504 Valid, 4425 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-02 04:30:03,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2023-04-02 04:30:03,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 1965. [2023-04-02 04:30:03,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1220 states have (on average 1.1836065573770491) internal successors, (1444), 1324 states have internal predecessors, (1444), 385 states have call successors, (385), 353 states have call predecessors, (385), 359 states have return successors, (483), 357 states have call predecessors, (483), 381 states have call successors, (483) [2023-04-02 04:30:03,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 2312 transitions. [2023-04-02 04:30:03,509 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 2312 transitions. Word has length 174 [2023-04-02 04:30:03,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:30:03,510 INFO L495 AbstractCegarLoop]: Abstraction has 1965 states and 2312 transitions. [2023-04-02 04:30:03,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.590909090909091) internal successors, (167), 14 states have internal predecessors, (167), 8 states have call successors, (65), 11 states have call predecessors, (65), 10 states have return successors, (52), 9 states have call predecessors, (52), 7 states have call successors, (52) [2023-04-02 04:30:03,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 2312 transitions. [2023-04-02 04:30:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-04-02 04:30:03,515 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:30:03,515 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:30:03,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 04:30:03,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:30:03,721 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:30:03,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:30:03,721 INFO L85 PathProgramCache]: Analyzing trace with hash -500269088, now seen corresponding path program 1 times [2023-04-02 04:30:03,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:30:03,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336945744] [2023-04-02 04:30:03,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:30:03,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:30:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:30:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:30:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:30:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:30:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:30:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:30:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:30:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 04:30:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:30:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:30:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:30:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-04-02 04:30:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:30:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:30:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:30:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-04-02 04:30:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 04:30:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-04-02 04:30:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-04-02 04:30:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-04-02 04:30:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:03,974 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-04-02 04:30:03,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:30:03,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336945744] [2023-04-02 04:30:03,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336945744] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:30:03,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268971760] [2023-04-02 04:30:03,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:30:03,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:30:03,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:30:03,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:30:03,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 04:30:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 22 conjunts are in the unsatisfiable core [2023-04-02 04:30:04,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:30:04,359 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 220 proven. 4 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-04-02 04:30:04,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:30:05,122 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 79 proven. 33 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2023-04-02 04:30:05,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268971760] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:30:05,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:30:05,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 13] total 29 [2023-04-02 04:30:05,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500154759] [2023-04-02 04:30:05,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:30:05,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-04-02 04:30:05,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:30:05,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-04-02 04:30:05,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2023-04-02 04:30:05,124 INFO L87 Difference]: Start difference. First operand 1965 states and 2312 transitions. Second operand has 29 states, 28 states have (on average 8.0) internal successors, (224), 20 states have internal predecessors, (224), 10 states have call successors, (98), 11 states have call predecessors, (98), 15 states have return successors, (89), 13 states have call predecessors, (89), 10 states have call successors, (89) [2023-04-02 04:30:07,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:30:07,861 INFO L93 Difference]: Finished difference Result 5008 states and 6736 transitions. [2023-04-02 04:30:07,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-04-02 04:30:07,862 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 8.0) internal successors, (224), 20 states have internal predecessors, (224), 10 states have call successors, (98), 11 states have call predecessors, (98), 15 states have return successors, (89), 13 states have call predecessors, (89), 10 states have call successors, (89) Word has length 311 [2023-04-02 04:30:07,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:30:07,873 INFO L225 Difference]: With dead ends: 5008 [2023-04-02 04:30:07,873 INFO L226 Difference]: Without dead ends: 3094 [2023-04-02 04:30:07,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 727 SyntacticMatches, 7 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1189 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=981, Invalid=3711, Unknown=0, NotChecked=0, Total=4692 [2023-04-02 04:30:07,879 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 1280 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 3774 mSolverCounterSat, 952 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 4726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 952 IncrementalHoareTripleChecker+Valid, 3774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:30:07,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 1002 Invalid, 4726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [952 Valid, 3774 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 04:30:07,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2023-04-02 04:30:08,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 2185. [2023-04-02 04:30:08,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2185 states, 1364 states have (on average 1.1693548387096775) internal successors, (1595), 1471 states have internal predecessors, (1595), 430 states have call successors, (430), 396 states have call predecessors, (430), 390 states have return successors, (532), 390 states have call predecessors, (532), 426 states have call successors, (532) [2023-04-02 04:30:08,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2185 states to 2185 states and 2557 transitions. [2023-04-02 04:30:08,112 INFO L78 Accepts]: Start accepts. Automaton has 2185 states and 2557 transitions. Word has length 311 [2023-04-02 04:30:08,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:30:08,113 INFO L495 AbstractCegarLoop]: Abstraction has 2185 states and 2557 transitions. [2023-04-02 04:30:08,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 8.0) internal successors, (224), 20 states have internal predecessors, (224), 10 states have call successors, (98), 11 states have call predecessors, (98), 15 states have return successors, (89), 13 states have call predecessors, (89), 10 states have call successors, (89) [2023-04-02 04:30:08,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2185 states and 2557 transitions. [2023-04-02 04:30:08,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-04-02 04:30:08,118 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:30:08,119 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:30:08,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-04-02 04:30:08,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-04-02 04:30:08,325 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:30:08,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:30:08,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1100306450, now seen corresponding path program 1 times [2023-04-02 04:30:08,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:30:08,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521288882] [2023-04-02 04:30:08,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:30:08,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:30:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:30:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:30:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:30:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:30:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:30:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:30:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:30:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 04:30:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:30:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:30:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:30:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 04:30:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:30:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:30:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:30:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-04-02 04:30:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 04:30:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-04-02 04:30:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-04-02 04:30:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-04-02 04:30:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,684 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 94 proven. 42 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-04-02 04:30:08,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:30:08,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521288882] [2023-04-02 04:30:08,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521288882] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:30:08,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943024942] [2023-04-02 04:30:08,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:30:08,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:30:08,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:30:08,685 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:30:08,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 04:30:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:08,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 12 conjunts are in the unsatisfiable core [2023-04-02 04:30:08,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:30:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 255 proven. 16 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-02 04:30:09,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:30:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 98 proven. 55 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-04-02 04:30:09,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943024942] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:30:09,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:30:09,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 27 [2023-04-02 04:30:09,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610380165] [2023-04-02 04:30:09,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:30:09,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-04-02 04:30:09,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:30:09,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-04-02 04:30:09,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2023-04-02 04:30:09,681 INFO L87 Difference]: Start difference. First operand 2185 states and 2557 transitions. Second operand has 27 states, 26 states have (on average 9.307692307692308) internal successors, (242), 18 states have internal predecessors, (242), 8 states have call successors, (95), 10 states have call predecessors, (95), 14 states have return successors, (86), 12 states have call predecessors, (86), 8 states have call successors, (86) [2023-04-02 04:30:11,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:30:11,622 INFO L93 Difference]: Finished difference Result 4207 states and 5008 transitions. [2023-04-02 04:30:11,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 04:30:11,623 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 9.307692307692308) internal successors, (242), 18 states have internal predecessors, (242), 8 states have call successors, (95), 10 states have call predecessors, (95), 14 states have return successors, (86), 12 states have call predecessors, (86), 8 states have call successors, (86) Word has length 323 [2023-04-02 04:30:11,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:30:11,630 INFO L225 Difference]: With dead ends: 4207 [2023-04-02 04:30:11,631 INFO L226 Difference]: Without dead ends: 2253 [2023-04-02 04:30:11,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 810 GetRequests, 759 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=498, Invalid=2154, Unknown=0, NotChecked=0, Total=2652 [2023-04-02 04:30:11,634 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 1319 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 2889 mSolverCounterSat, 863 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 3752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 863 IncrementalHoareTripleChecker+Valid, 2889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:30:11,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 483 Invalid, 3752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [863 Valid, 2889 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 04:30:11,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2023-04-02 04:30:11,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 2187. [2023-04-02 04:30:11,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 1365 states have (on average 1.164835164835165) internal successors, (1590), 1473 states have internal predecessors, (1590), 430 states have call successors, (430), 396 states have call predecessors, (430), 391 states have return successors, (533), 390 states have call predecessors, (533), 426 states have call successors, (533) [2023-04-02 04:30:11,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 2553 transitions. [2023-04-02 04:30:11,807 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 2553 transitions. Word has length 323 [2023-04-02 04:30:11,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:30:11,808 INFO L495 AbstractCegarLoop]: Abstraction has 2187 states and 2553 transitions. [2023-04-02 04:30:11,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 9.307692307692308) internal successors, (242), 18 states have internal predecessors, (242), 8 states have call successors, (95), 10 states have call predecessors, (95), 14 states have return successors, (86), 12 states have call predecessors, (86), 8 states have call successors, (86) [2023-04-02 04:30:11,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 2553 transitions. [2023-04-02 04:30:11,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-04-02 04:30:11,814 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:30:11,814 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:30:11,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 04:30:12,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:30:12,026 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:30:12,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:30:12,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1444346891, now seen corresponding path program 1 times [2023-04-02 04:30:12,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:30:12,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096237769] [2023-04-02 04:30:12,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:30:12,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:30:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:30:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:30:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:30:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:30:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:30:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:30:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:30:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 04:30:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:30:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:30:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:30:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:30:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:30:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:30:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:30:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-04-02 04:30:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 04:30:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-04-02 04:30:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-04-02 04:30:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-04-02 04:30:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,562 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 90 proven. 47 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-04-02 04:30:12,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:30:12,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096237769] [2023-04-02 04:30:12,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096237769] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:30:12,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052388932] [2023-04-02 04:30:12,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:30:12,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:30:12,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:30:12,564 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:30:12,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 04:30:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:12,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 28 conjunts are in the unsatisfiable core [2023-04-02 04:30:12,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:30:12,897 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 181 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-04-02 04:30:12,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:30:13,527 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 98 proven. 27 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-04-02 04:30:13,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052388932] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:30:13,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:30:13,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8, 13] total 25 [2023-04-02 04:30:13,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440863312] [2023-04-02 04:30:13,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:30:13,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 04:30:13,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:30:13,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 04:30:13,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:30:13,530 INFO L87 Difference]: Start difference. First operand 2187 states and 2553 transitions. Second operand has 25 states, 24 states have (on average 9.375) internal successors, (225), 19 states have internal predecessors, (225), 16 states have call successors, (101), 12 states have call predecessors, (101), 14 states have return successors, (88), 15 states have call predecessors, (88), 16 states have call successors, (88) [2023-04-02 04:30:16,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:30:16,103 INFO L93 Difference]: Finished difference Result 4943 states and 6394 transitions. [2023-04-02 04:30:16,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-04-02 04:30:16,103 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 9.375) internal successors, (225), 19 states have internal predecessors, (225), 16 states have call successors, (101), 12 states have call predecessors, (101), 14 states have return successors, (88), 15 states have call predecessors, (88), 16 states have call successors, (88) Word has length 324 [2023-04-02 04:30:16,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:30:16,117 INFO L225 Difference]: With dead ends: 4943 [2023-04-02 04:30:16,117 INFO L226 Difference]: Without dead ends: 3777 [2023-04-02 04:30:16,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 769 SyntacticMatches, 12 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1160, Invalid=3532, Unknown=0, NotChecked=0, Total=4692 [2023-04-02 04:30:16,122 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 1320 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 961 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 961 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:30:16,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 599 Invalid, 3347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [961 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 04:30:16,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3777 states. [2023-04-02 04:30:16,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 2827. [2023-04-02 04:30:16,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2827 states, 1766 states have (on average 1.168176670441676) internal successors, (2063), 1903 states have internal predecessors, (2063), 560 states have call successors, (560), 516 states have call predecessors, (560), 500 states have return successors, (681), 502 states have call predecessors, (681), 556 states have call successors, (681) [2023-04-02 04:30:16,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 3304 transitions. [2023-04-02 04:30:16,415 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 3304 transitions. Word has length 324 [2023-04-02 04:30:16,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:30:16,416 INFO L495 AbstractCegarLoop]: Abstraction has 2827 states and 3304 transitions. [2023-04-02 04:30:16,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 9.375) internal successors, (225), 19 states have internal predecessors, (225), 16 states have call successors, (101), 12 states have call predecessors, (101), 14 states have return successors, (88), 15 states have call predecessors, (88), 16 states have call successors, (88) [2023-04-02 04:30:16,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 3304 transitions. [2023-04-02 04:30:16,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2023-04-02 04:30:16,423 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:30:16,423 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:30:16,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-04-02 04:30:16,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:30:16,630 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:30:16,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:30:16,631 INFO L85 PathProgramCache]: Analyzing trace with hash 687042658, now seen corresponding path program 1 times [2023-04-02 04:30:16,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:30:16,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516436040] [2023-04-02 04:30:16,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:30:16,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:30:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:30:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:30:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:30:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:30:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:30:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:30:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:30:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 04:30:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:30:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:30:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:30:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:30:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:30:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:30:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:30:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-04-02 04:30:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 04:30:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-04-02 04:30:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:30:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:30:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-04-02 04:30:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-04-02 04:30:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-04-02 04:30:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-04-02 04:30:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-04-02 04:30:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:16,817 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2023-04-02 04:30:16,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:30:16,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516436040] [2023-04-02 04:30:16,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516436040] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:30:16,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:30:16,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:30:16,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472019757] [2023-04-02 04:30:16,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:30:16,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:30:16,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:30:16,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:30:16,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:30:16,819 INFO L87 Difference]: Start difference. First operand 2827 states and 3304 transitions. Second operand has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 4 states have internal predecessors, (116), 6 states have call successors, (43), 8 states have call predecessors, (43), 3 states have return successors, (37), 4 states have call predecessors, (37), 6 states have call successors, (37) [2023-04-02 04:30:17,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:30:17,772 INFO L93 Difference]: Finished difference Result 4662 states and 5502 transitions. [2023-04-02 04:30:17,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 04:30:17,774 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 4 states have internal predecessors, (116), 6 states have call successors, (43), 8 states have call predecessors, (43), 3 states have return successors, (37), 4 states have call predecessors, (37), 6 states have call successors, (37) Word has length 398 [2023-04-02 04:30:17,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:30:17,782 INFO L225 Difference]: With dead ends: 4662 [2023-04-02 04:30:17,782 INFO L226 Difference]: Without dead ends: 1886 [2023-04-02 04:30:17,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2023-04-02 04:30:17,789 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 771 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:30:17,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 235 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:30:17,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2023-04-02 04:30:17,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1751. [2023-04-02 04:30:17,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1084 states have (on average 1.1577490774907748) internal successors, (1255), 1181 states have internal predecessors, (1255), 354 states have call successors, (354), 328 states have call predecessors, (354), 312 states have return successors, (402), 310 states have call predecessors, (402), 350 states have call successors, (402) [2023-04-02 04:30:17,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2011 transitions. [2023-04-02 04:30:17,959 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2011 transitions. Word has length 398 [2023-04-02 04:30:17,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:30:17,959 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2011 transitions. [2023-04-02 04:30:17,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 4 states have internal predecessors, (116), 6 states have call successors, (43), 8 states have call predecessors, (43), 3 states have return successors, (37), 4 states have call predecessors, (37), 6 states have call successors, (37) [2023-04-02 04:30:17,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2011 transitions. [2023-04-02 04:30:17,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-04-02 04:30:17,963 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:30:17,963 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:30:17,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 04:30:17,963 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:30:17,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:30:17,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1508212308, now seen corresponding path program 1 times [2023-04-02 04:30:17,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:30:17,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203311102] [2023-04-02 04:30:17,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:30:17,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:30:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:30:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:30:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:30:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:30:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:30:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:30:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:30:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 04:30:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:30:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:30:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:30:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:30:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:30:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:30:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:30:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-04-02 04:30:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 04:30:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-04-02 04:30:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:30:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-04-02 04:30:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-04-02 04:30:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-04-02 04:30:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-04-02 04:30:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-04-02 04:30:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-04-02 04:30:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 154 proven. 8 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2023-04-02 04:30:18,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:30:18,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203311102] [2023-04-02 04:30:18,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203311102] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:30:18,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546273350] [2023-04-02 04:30:18,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:30:18,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:30:18,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:30:18,534 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:30:18,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-02 04:30:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:18,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 42 conjunts are in the unsatisfiable core [2023-04-02 04:30:18,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:30:19,121 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 208 proven. 46 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-04-02 04:30:19,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:30:19,767 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 111 proven. 71 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2023-04-02 04:30:19,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546273350] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:30:19,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:30:19,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 17] total 36 [2023-04-02 04:30:19,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108339239] [2023-04-02 04:30:19,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:30:19,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-04-02 04:30:19,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:30:19,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-04-02 04:30:19,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1080, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 04:30:19,770 INFO L87 Difference]: Start difference. First operand 1751 states and 2011 transitions. Second operand has 36 states, 35 states have (on average 7.828571428571428) internal successors, (274), 27 states have internal predecessors, (274), 19 states have call successors, (112), 16 states have call predecessors, (112), 24 states have return successors, (109), 19 states have call predecessors, (109), 19 states have call successors, (109) [2023-04-02 04:30:22,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:30:22,768 INFO L93 Difference]: Finished difference Result 2891 states and 3456 transitions. [2023-04-02 04:30:22,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-04-02 04:30:22,780 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 7.828571428571428) internal successors, (274), 27 states have internal predecessors, (274), 19 states have call successors, (112), 16 states have call predecessors, (112), 24 states have return successors, (109), 19 states have call predecessors, (109), 19 states have call successors, (109) Word has length 374 [2023-04-02 04:30:22,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:30:22,782 INFO L225 Difference]: With dead ends: 2891 [2023-04-02 04:30:22,782 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 04:30:22,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 953 GetRequests, 859 SyntacticMatches, 16 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1870 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1279, Invalid=5041, Unknown=0, NotChecked=0, Total=6320 [2023-04-02 04:30:22,789 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 2085 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 4302 mSolverCounterSat, 1425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2085 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 5727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1425 IncrementalHoareTripleChecker+Valid, 4302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:30:22,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2085 Valid, 679 Invalid, 5727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1425 Valid, 4302 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-02 04:30:22,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 04:30:22,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 04:30:22,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-02 04:30:22,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 04:30:22,790 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 374 [2023-04-02 04:30:22,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:30:22,791 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 04:30:22,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 7.828571428571428) internal successors, (274), 27 states have internal predecessors, (274), 19 states have call successors, (112), 16 states have call predecessors, (112), 24 states have return successors, (109), 19 states have call predecessors, (109), 19 states have call successors, (109) [2023-04-02 04:30:22,791 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 04:30:22,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 04:30:22,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:30:22,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-02 04:30:23,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-04-02 04:30:23,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.