/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_spec2_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:10:42,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:10:42,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:10:42,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:10:42,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:10:42,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:10:42,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:10:42,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:10:42,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:10:42,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:10:42,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:10:42,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:10:42,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:10:42,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:10:42,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:10:42,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:10:42,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:10:42,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:10:42,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:10:42,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:10:42,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:10:42,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:10:42,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:10:42,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:10:42,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:10:42,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:10:42,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:10:42,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:10:42,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:10:42,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:10:42,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:10:42,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:10:42,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:10:42,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:10:42,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:10:42,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:10:42,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:10:42,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:10:42,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:10:42,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:10:42,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:10:42,286 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 04:10:42,319 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:10:42,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:10:42,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:10:42,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:10:42,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:10:42,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:10:42,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:10:42,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:10:42,323 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:10:42,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:10:42,323 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:10:42,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:10:42,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:10:42,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:10:42,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:10:42,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:10:42,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:10:42,324 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:10:42,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:10:42,325 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:10:42,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:10:42,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:10:42,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:10:42,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:10:42,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:10:42,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:10:42,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:10:42,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:10:42,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:10:42,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:10:42,326 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:10:42,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:10:42,326 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:10:42,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:10:42,327 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:10:42,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:10:42,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:10:42,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:10:42,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:10:42,607 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:10:42,608 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:10:42,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2023-04-02 04:10:43,853 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:10:44,111 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:10:44,112 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2023-04-02 04:10:44,126 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53e428c0/995a17e5d6464cf0a428fe8df6963f5e/FLAG10bae466d [2023-04-02 04:10:44,141 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53e428c0/995a17e5d6464cf0a428fe8df6963f5e [2023-04-02 04:10:44,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:10:44,145 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:10:44,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:10:44,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:10:44,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:10:44,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:10:44" (1/1) ... [2023-04-02 04:10:44,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30cee815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:10:44, skipping insertion in model container [2023-04-02 04:10:44,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:10:44" (1/1) ... [2023-04-02 04:10:44,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:10:44,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:10:44,465 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_spec2_product51.cil.c[9329,9342] [2023-04-02 04:10:44,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:10:44,563 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:10:44,598 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_spec2_product51.cil.c[9329,9342] [2023-04-02 04:10:44,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:10:44,648 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:10:44,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:10:44 WrapperNode [2023-04-02 04:10:44,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:10:44,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:10:44,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:10:44,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:10:44,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:10:44" (1/1) ... [2023-04-02 04:10:44,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:10:44" (1/1) ... [2023-04-02 04:10:44,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:10:44" (1/1) ... [2023-04-02 04:10:44,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:10:44" (1/1) ... [2023-04-02 04:10:44,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:10:44" (1/1) ... [2023-04-02 04:10:44,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:10:44" (1/1) ... [2023-04-02 04:10:44,716 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:10:44" (1/1) ... [2023-04-02 04:10:44,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:10:44" (1/1) ... [2023-04-02 04:10:44,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:10:44,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:10:44,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:10:44,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:10:44,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:10:44" (1/1) ... [2023-04-02 04:10:44,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:10:44,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:10:44,794 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 04:10:44,796 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 04:10:44,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:10:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:10:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:10:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:10:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:10:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:10:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:10:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:10:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:10:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:10:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:10:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:10:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:10:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:10:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:10:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-02 04:10:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:10:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-04-02 04:10:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-04-02 04:10:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:10:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:10:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:10:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:10:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:10:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:10:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:10:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:10:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:10:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:10:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:10:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-02 04:10:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:10:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:10:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:10:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:10:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:10:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:10:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:10:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:10:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:10:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:10:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:10:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:10:44,838 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:10:44,838 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:10:44,838 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:10:44,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:10:44,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:10:44,838 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:10:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:10:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:10:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:10:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:10:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:10:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:10:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:10:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:10:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:10:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:10:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-02 04:10:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:10:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:10:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:10:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:10:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-04-02 04:10:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:10:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:10:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:10:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:10:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-02 04:10:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:10:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:10:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-04-02 04:10:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:10:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:10:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:10:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:10:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:10:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:10:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:10:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:10:44,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:10:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:10:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:10:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:10:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:10:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:10:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:10:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:10:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:10:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:10:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:10:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:10:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:10:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:10:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:10:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:10:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:10:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:10:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:10:45,000 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:10:45,003 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:10:45,548 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:10:45,566 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:10:45,566 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:10:45,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:10:45 BoogieIcfgContainer [2023-04-02 04:10:45,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:10:45,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:10:45,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:10:45,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:10:45,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:10:44" (1/3) ... [2023-04-02 04:10:45,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25217d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:10:45, skipping insertion in model container [2023-04-02 04:10:45,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:10:44" (2/3) ... [2023-04-02 04:10:45,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25217d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:10:45, skipping insertion in model container [2023-04-02 04:10:45,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:10:45" (3/3) ... [2023-04-02 04:10:45,582 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2023-04-02 04:10:45,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:10:45,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:10:45,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:10:45,660 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;@670ce01d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:10:45,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:10:45,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 117 states have internal predecessors, (134), 48 states have call successors, (48), 30 states have call predecessors, (48), 30 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2023-04-02 04:10:45,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-02 04:10:45,678 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:10:45,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:10:45,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:10:45,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:10:45,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1946718509, now seen corresponding path program 1 times [2023-04-02 04:10:45,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:10:45,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440281565] [2023-04-02 04:10:45,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:10:45,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:10:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:10:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:10:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:10:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:10:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:10:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:10:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:10:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 04:10:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:10:46,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:10:46,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440281565] [2023-04-02 04:10:46,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440281565] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:10:46,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:10:46,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:10:46,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937296052] [2023-04-02 04:10:46,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:10:46,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:10:46,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:10:46,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:10:46,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:10:46,140 INFO L87 Difference]: Start difference. First operand has 185 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 117 states have internal predecessors, (134), 48 states have call successors, (48), 30 states have call predecessors, (48), 30 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:10:46,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:10:46,703 INFO L93 Difference]: Finished difference Result 311 states and 406 transitions. [2023-04-02 04:10:46,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 04:10:46,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 51 [2023-04-02 04:10:46,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:10:46,720 INFO L225 Difference]: With dead ends: 311 [2023-04-02 04:10:46,720 INFO L226 Difference]: Without dead ends: 173 [2023-04-02 04:10:46,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:10:46,726 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 109 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:10:46,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 65 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:10:46,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-04-02 04:10:46,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 139. [2023-04-02 04:10:46,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 82 states have (on average 1.2560975609756098) internal successors, (103), 93 states have internal predecessors, (103), 33 states have call successors, (33), 28 states have call predecessors, (33), 23 states have return successors, (28), 24 states have call predecessors, (28), 28 states have call successors, (28) [2023-04-02 04:10:46,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2023-04-02 04:10:46,808 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 51 [2023-04-02 04:10:46,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:10:46,808 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2023-04-02 04:10:46,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:10:46,809 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2023-04-02 04:10:46,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:10:46,819 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:10:46,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:10:46,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:10:46,819 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:10:46,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:10:46,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1756036228, now seen corresponding path program 1 times [2023-04-02 04:10:46,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:10:46,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032622720] [2023-04-02 04:10:46,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:10:46,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:10:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:10:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:10:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:10:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:10:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:10:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:10:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:10:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:10:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:46,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:10:46,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:10:46,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032622720] [2023-04-02 04:10:46,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032622720] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:10:46,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:10:46,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 04:10:46,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512318698] [2023-04-02 04:10:46,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:10:46,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 04:10:46,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:10:46,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 04:10:46,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:10:46,973 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:10:47,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:10:47,428 INFO L93 Difference]: Finished difference Result 250 states and 309 transitions. [2023-04-02 04:10:47,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 04:10:47,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-04-02 04:10:47,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:10:47,435 INFO L225 Difference]: With dead ends: 250 [2023-04-02 04:10:47,435 INFO L226 Difference]: Without dead ends: 163 [2023-04-02 04:10:47,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 04:10:47,444 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 136 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:10:47,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 40 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:10:47,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-04-02 04:10:47,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 130. [2023-04-02 04:10:47,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 76 states have (on average 1.263157894736842) internal successors, (96), 87 states have internal predecessors, (96), 30 states have call successors, (30), 27 states have call predecessors, (30), 23 states have return successors, (26), 22 states have call predecessors, (26), 26 states have call successors, (26) [2023-04-02 04:10:47,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2023-04-02 04:10:47,516 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 52 [2023-04-02 04:10:47,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:10:47,516 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2023-04-02 04:10:47,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:10:47,517 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2023-04-02 04:10:47,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-04-02 04:10:47,518 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:10:47,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:10:47,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:10:47,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:10:47,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:10:47,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1727460466, now seen corresponding path program 1 times [2023-04-02 04:10:47,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:10:47,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739385560] [2023-04-02 04:10:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:10:47,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:10:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:47,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:10:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:47,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:10:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:47,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:10:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:47,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:10:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:47,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:10:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:47,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:10:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:47,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:10:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:47,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:10:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:10:47,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:10:47,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739385560] [2023-04-02 04:10:47,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739385560] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:10:47,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:10:47,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:10:47,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672579411] [2023-04-02 04:10:47,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:10:47,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:10:47,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:10:47,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:10:47,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:10:47,746 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:10:48,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:10:48,739 INFO L93 Difference]: Finished difference Result 438 states and 552 transitions. [2023-04-02 04:10:48,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 04:10:48,740 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 56 [2023-04-02 04:10:48,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:10:48,743 INFO L225 Difference]: With dead ends: 438 [2023-04-02 04:10:48,743 INFO L226 Difference]: Without dead ends: 336 [2023-04-02 04:10:48,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-04-02 04:10:48,745 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 572 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:10:48,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 110 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 04:10:48,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-04-02 04:10:48,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 275. [2023-04-02 04:10:48,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 168 states have (on average 1.3035714285714286) internal successors, (219), 190 states have internal predecessors, (219), 59 states have call successors, (59), 53 states have call predecessors, (59), 47 states have return successors, (56), 43 states have call predecessors, (56), 55 states have call successors, (56) [2023-04-02 04:10:48,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 334 transitions. [2023-04-02 04:10:48,807 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 334 transitions. Word has length 56 [2023-04-02 04:10:48,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:10:48,808 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 334 transitions. [2023-04-02 04:10:48,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:10:48,808 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 334 transitions. [2023-04-02 04:10:48,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-04-02 04:10:48,810 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:10:48,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:10:48,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:10:48,810 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:10:48,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:10:48,811 INFO L85 PathProgramCache]: Analyzing trace with hash -130291284, now seen corresponding path program 1 times [2023-04-02 04:10:48,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:10:48,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133944711] [2023-04-02 04:10:48,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:10:48,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:10:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:48,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:10:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:49,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:10:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:49,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:10:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:49,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:10:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:49,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:10:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:49,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:10:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:49,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:10:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:49,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:10:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:49,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:10:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:49,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:10:49,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:10:49,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133944711] [2023-04-02 04:10:49,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133944711] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:10:49,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:10:49,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:10:49,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123843234] [2023-04-02 04:10:49,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:10:49,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:10:49,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:10:49,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:10:49,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:10:49,073 INFO L87 Difference]: Start difference. First operand 275 states and 334 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:10:49,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:10:49,946 INFO L93 Difference]: Finished difference Result 875 states and 1153 transitions. [2023-04-02 04:10:49,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 04:10:49,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 62 [2023-04-02 04:10:49,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:10:49,953 INFO L225 Difference]: With dead ends: 875 [2023-04-02 04:10:49,954 INFO L226 Difference]: Without dead ends: 628 [2023-04-02 04:10:49,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2023-04-02 04:10:49,963 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 565 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:10:49,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 92 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:10:49,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2023-04-02 04:10:50,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 498. [2023-04-02 04:10:50,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 307 states have (on average 1.293159609120521) internal successors, (397), 350 states have internal predecessors, (397), 105 states have call successors, (105), 93 states have call predecessors, (105), 85 states have return successors, (106), 77 states have call predecessors, (106), 101 states have call successors, (106) [2023-04-02 04:10:50,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 608 transitions. [2023-04-02 04:10:50,053 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 608 transitions. Word has length 62 [2023-04-02 04:10:50,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:10:50,054 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 608 transitions. [2023-04-02 04:10:50,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:10:50,054 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 608 transitions. [2023-04-02 04:10:50,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-04-02 04:10:50,056 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:10:50,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:10:50,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:10:50,056 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:10:50,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:10:50,057 INFO L85 PathProgramCache]: Analyzing trace with hash 836140936, now seen corresponding path program 1 times [2023-04-02 04:10:50,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:10:50,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444123210] [2023-04-02 04:10:50,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:10:50,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:10:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:50,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:10:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:50,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:10:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:50,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:10:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:10:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:50,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:10:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:50,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:10:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:50,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:10:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:50,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:10:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:50,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 04:10:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:50,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 04:10:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:50,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:10:50,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:10:50,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444123210] [2023-04-02 04:10:50,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444123210] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:10:50,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:10:50,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:10:50,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542677667] [2023-04-02 04:10:50,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:10:50,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:10:50,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:10:50,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:10:50,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:10:50,296 INFO L87 Difference]: Start difference. First operand 498 states and 608 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (16), 7 states have call predecessors, (16), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 04:10:51,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:10:51,209 INFO L93 Difference]: Finished difference Result 1379 states and 1882 transitions. [2023-04-02 04:10:51,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 04:10:51,209 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (16), 7 states have call predecessors, (16), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 66 [2023-04-02 04:10:51,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:10:51,215 INFO L225 Difference]: With dead ends: 1379 [2023-04-02 04:10:51,215 INFO L226 Difference]: Without dead ends: 909 [2023-04-02 04:10:51,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2023-04-02 04:10:51,218 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 415 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:10:51,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 103 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:10:51,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2023-04-02 04:10:51,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 713. [2023-04-02 04:10:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 442 states have (on average 1.239819004524887) internal successors, (548), 477 states have internal predecessors, (548), 135 states have call successors, (135), 123 states have call predecessors, (135), 135 states have return successors, (184), 137 states have call predecessors, (184), 131 states have call successors, (184) [2023-04-02 04:10:51,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 867 transitions. [2023-04-02 04:10:51,316 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 867 transitions. Word has length 66 [2023-04-02 04:10:51,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:10:51,316 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 867 transitions. [2023-04-02 04:10:51,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (16), 7 states have call predecessors, (16), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 04:10:51,317 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 867 transitions. [2023-04-02 04:10:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 04:10:51,319 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:10:51,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:10:51,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:10:51,319 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:10:51,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:10:51,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1654606680, now seen corresponding path program 1 times [2023-04-02 04:10:51,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:10:51,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405981776] [2023-04-02 04:10:51,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:10:51,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:10:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:10:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:10:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:10:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:10:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:10:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:10:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:10:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:10:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:10:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:10:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:10:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 04:10:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:10:51,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:10:51,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405981776] [2023-04-02 04:10:51,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405981776] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:10:51,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:10:51,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:10:51,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918998354] [2023-04-02 04:10:51,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:10:51,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:10:51,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:10:51,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:10:51,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:10:51,491 INFO L87 Difference]: Start difference. First operand 713 states and 867 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:10:52,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:10:52,269 INFO L93 Difference]: Finished difference Result 1670 states and 2230 transitions. [2023-04-02 04:10:52,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 04:10:52,270 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2023-04-02 04:10:52,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:10:52,277 INFO L225 Difference]: With dead ends: 1670 [2023-04-02 04:10:52,278 INFO L226 Difference]: Without dead ends: 985 [2023-04-02 04:10:52,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-04-02 04:10:52,281 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 231 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:10:52,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 77 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:10:52,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2023-04-02 04:10:52,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 739. [2023-04-02 04:10:52,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 462 states have (on average 1.2294372294372293) internal successors, (568), 497 states have internal predecessors, (568), 135 states have call successors, (135), 123 states have call predecessors, (135), 141 states have return successors, (192), 141 states have call predecessors, (192), 131 states have call successors, (192) [2023-04-02 04:10:52,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 895 transitions. [2023-04-02 04:10:52,376 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 895 transitions. Word has length 88 [2023-04-02 04:10:52,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:10:52,376 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 895 transitions. [2023-04-02 04:10:52,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:10:52,377 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 895 transitions. [2023-04-02 04:10:52,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 04:10:52,380 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:10:52,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:10:52,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:10:52,381 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:10:52,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:10:52,381 INFO L85 PathProgramCache]: Analyzing trace with hash -953006806, now seen corresponding path program 1 times [2023-04-02 04:10:52,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:10:52,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644116472] [2023-04-02 04:10:52,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:10:52,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:10:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:10:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:10:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:10:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:10:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:10:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:10:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:10:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:10:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:10:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:10:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:10:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 04:10:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:52,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:10:52,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:10:52,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644116472] [2023-04-02 04:10:52,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644116472] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:10:52,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:10:52,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:10:52,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044709728] [2023-04-02 04:10:52,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:10:52,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:10:52,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:10:52,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:10:52,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:10:52,629 INFO L87 Difference]: Start difference. First operand 739 states and 895 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:10:53,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:10:53,554 INFO L93 Difference]: Finished difference Result 1724 states and 2339 transitions. [2023-04-02 04:10:53,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 04:10:53,555 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2023-04-02 04:10:53,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:10:53,561 INFO L225 Difference]: With dead ends: 1724 [2023-04-02 04:10:53,561 INFO L226 Difference]: Without dead ends: 1013 [2023-04-02 04:10:53,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-04-02 04:10:53,564 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 468 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:10:53,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 87 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:10:53,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2023-04-02 04:10:53,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 755. [2023-04-02 04:10:53,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 474 states have (on average 1.2236286919831223) internal successors, (580), 509 states have internal predecessors, (580), 135 states have call successors, (135), 123 states have call predecessors, (135), 145 states have return successors, (196), 145 states have call predecessors, (196), 131 states have call successors, (196) [2023-04-02 04:10:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 911 transitions. [2023-04-02 04:10:53,700 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 911 transitions. Word has length 88 [2023-04-02 04:10:53,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:10:53,700 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 911 transitions. [2023-04-02 04:10:53,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:10:53,701 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 911 transitions. [2023-04-02 04:10:53,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 04:10:53,702 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:10:53,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:10:53,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:10:53,703 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:10:53,703 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:10:53,703 INFO L85 PathProgramCache]: Analyzing trace with hash 772474091, now seen corresponding path program 1 times [2023-04-02 04:10:53,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:10:53,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200242572] [2023-04-02 04:10:53,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:10:53,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:10:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:10:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:10:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:10:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:10:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:10:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:10:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:10:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:10:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:10:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:10:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:10:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 04:10:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:10:53,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:10:53,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200242572] [2023-04-02 04:10:53,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200242572] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:10:53,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:10:53,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:10:53,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093945653] [2023-04-02 04:10:53,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:10:53,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:10:53,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:10:53,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:10:53,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:10:53,915 INFO L87 Difference]: Start difference. First operand 755 states and 911 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-04-02 04:10:54,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:10:54,869 INFO L93 Difference]: Finished difference Result 2626 states and 3597 transitions. [2023-04-02 04:10:54,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 04:10:54,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 88 [2023-04-02 04:10:54,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:10:54,881 INFO L225 Difference]: With dead ends: 2626 [2023-04-02 04:10:54,881 INFO L226 Difference]: Without dead ends: 1899 [2023-04-02 04:10:54,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2023-04-02 04:10:54,887 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 721 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:10:54,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 110 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:10:54,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2023-04-02 04:10:55,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1555. [2023-04-02 04:10:55,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1006 states have (on average 1.1988071570576542) internal successors, (1206), 1079 states have internal predecessors, (1206), 271 states have call successors, (271), 263 states have call predecessors, (271), 277 states have return successors, (424), 265 states have call predecessors, (424), 267 states have call successors, (424) [2023-04-02 04:10:55,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 1901 transitions. [2023-04-02 04:10:55,104 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 1901 transitions. Word has length 88 [2023-04-02 04:10:55,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:10:55,105 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 1901 transitions. [2023-04-02 04:10:55,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-04-02 04:10:55,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 1901 transitions. [2023-04-02 04:10:55,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-02 04:10:55,108 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:10:55,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:10:55,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:10:55,109 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:10:55,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:10:55,109 INFO L85 PathProgramCache]: Analyzing trace with hash -905435387, now seen corresponding path program 1 times [2023-04-02 04:10:55,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:10:55,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189141334] [2023-04-02 04:10:55,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:10:55,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:10:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:10:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:10:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:10:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:10:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:10:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:10:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:10:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:10:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:10:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:10:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:10:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 04:10:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 04:10:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:10:55,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:10:55,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189141334] [2023-04-02 04:10:55,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189141334] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:10:55,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:10:55,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:10:55,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509479756] [2023-04-02 04:10:55,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:10:55,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:10:55,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:10:55,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:10:55,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:10:55,241 INFO L87 Difference]: Start difference. First operand 1555 states and 1901 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 04:10:56,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:10:56,351 INFO L93 Difference]: Finished difference Result 3162 states and 4351 transitions. [2023-04-02 04:10:56,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 04:10:56,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 92 [2023-04-02 04:10:56,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:10:56,371 INFO L225 Difference]: With dead ends: 3162 [2023-04-02 04:10:56,371 INFO L226 Difference]: Without dead ends: 3159 [2023-04-02 04:10:56,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2023-04-02 04:10:56,376 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 686 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:10:56,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 95 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:10:56,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2023-04-02 04:10:56,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 2582. [2023-04-02 04:10:56,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2582 states, 1614 states have (on average 1.1821561338289963) internal successors, (1908), 1729 states have internal predecessors, (1908), 468 states have call successors, (468), 417 states have call predecessors, (468), 499 states have return successors, (855), 500 states have call predecessors, (855), 464 states have call successors, (855) [2023-04-02 04:10:56,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2582 states to 2582 states and 3231 transitions. [2023-04-02 04:10:56,721 INFO L78 Accepts]: Start accepts. Automaton has 2582 states and 3231 transitions. Word has length 92 [2023-04-02 04:10:56,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:10:56,723 INFO L495 AbstractCegarLoop]: Abstraction has 2582 states and 3231 transitions. [2023-04-02 04:10:56,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 04:10:56,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2582 states and 3231 transitions. [2023-04-02 04:10:56,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-04-02 04:10:56,734 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:10:56,735 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 04:10:56,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 04:10:56,735 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:10:56,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:10:56,736 INFO L85 PathProgramCache]: Analyzing trace with hash -414379846, now seen corresponding path program 1 times [2023-04-02 04:10:56,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:10:56,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349702849] [2023-04-02 04:10:56,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:10:56,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:10:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:10:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:10:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:10:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:10:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:10:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:10:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:10:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:10:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:10:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:10:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:10:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:10:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:10:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:10:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 04:10:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:56,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:10:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:57,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:57,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:10:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:57,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:10:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:57,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:10:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:57,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 04:10:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:57,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 04:10:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:57,029 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 04:10:57,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:10:57,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349702849] [2023-04-02 04:10:57,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349702849] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:10:57,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743186597] [2023-04-02 04:10:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:10:57,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:10:57,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:10:57,037 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 04:10:57,059 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 04:10:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:10:57,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 18 conjunts are in the unsatisfiable core [2023-04-02 04:10:57,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:10:57,442 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 42 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 04:10:57,442 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:10:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 04:10:57,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743186597] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:10:57,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:10:57,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7, 9] total 24 [2023-04-02 04:10:57,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302594935] [2023-04-02 04:10:57,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:10:57,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-04-02 04:10:57,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:10:57,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-04-02 04:10:57,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2023-04-02 04:10:57,882 INFO L87 Difference]: Start difference. First operand 2582 states and 3231 transitions. Second operand has 24 states, 24 states have (on average 6.958333333333333) internal successors, (167), 17 states have internal predecessors, (167), 10 states have call successors, (66), 14 states have call predecessors, (66), 14 states have return successors, (59), 11 states have call predecessors, (59), 10 states have call successors, (59) [2023-04-02 04:11:02,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:11:02,624 INFO L93 Difference]: Finished difference Result 7431 states and 11785 transitions. [2023-04-02 04:11:02,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2023-04-02 04:11:02,625 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.958333333333333) internal successors, (167), 17 states have internal predecessors, (167), 10 states have call successors, (66), 14 states have call predecessors, (66), 14 states have return successors, (59), 11 states have call predecessors, (59), 10 states have call successors, (59) Word has length 154 [2023-04-02 04:11:02,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:11:02,666 INFO L225 Difference]: With dead ends: 7431 [2023-04-02 04:11:02,666 INFO L226 Difference]: Without dead ends: 5205 [2023-04-02 04:11:02,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 421 SyntacticMatches, 9 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5963 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2342, Invalid=14170, Unknown=0, NotChecked=0, Total=16512 [2023-04-02 04:11:02,682 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1971 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 3463 mSolverCounterSat, 1242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 4705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1242 IncrementalHoareTripleChecker+Valid, 3463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:11:02,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 1850 Invalid, 4705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1242 Valid, 3463 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-02 04:11:02,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5205 states. [2023-04-02 04:11:03,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5205 to 2756. [2023-04-02 04:11:03,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 1755 states have (on average 1.165811965811966) internal successors, (2046), 1869 states have internal predecessors, (2046), 501 states have call successors, (501), 469 states have call predecessors, (501), 499 states have return successors, (708), 481 states have call predecessors, (708), 497 states have call successors, (708) [2023-04-02 04:11:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 3255 transitions. [2023-04-02 04:11:03,209 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 3255 transitions. Word has length 154 [2023-04-02 04:11:03,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:11:03,209 INFO L495 AbstractCegarLoop]: Abstraction has 2756 states and 3255 transitions. [2023-04-02 04:11:03,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.958333333333333) internal successors, (167), 17 states have internal predecessors, (167), 10 states have call successors, (66), 14 states have call predecessors, (66), 14 states have return successors, (59), 11 states have call predecessors, (59), 10 states have call successors, (59) [2023-04-02 04:11:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 3255 transitions. [2023-04-02 04:11:03,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-02 04:11:03,216 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:11:03,216 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 04:11:03,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 04:11:03,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-04-02 04:11:03,425 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:11:03,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:11:03,426 INFO L85 PathProgramCache]: Analyzing trace with hash 270418766, now seen corresponding path program 1 times [2023-04-02 04:11:03,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:11:03,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377957684] [2023-04-02 04:11:03,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:11:03,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:11:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:11:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:11:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:11:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:11:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:11:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:11:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:11:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:11:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:11:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:11:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:11:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:11:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:11:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:11:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 04:11:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:11:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:11:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:11:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 04:11:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 04:11:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-02 04:11:03,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:11:03,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377957684] [2023-04-02 04:11:03,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377957684] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:11:03,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852271794] [2023-04-02 04:11:03,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:11:03,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:11:03,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:11:03,856 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 04:11:03,859 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 04:11:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:03,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 15 conjunts are in the unsatisfiable core [2023-04-02 04:11:04,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:11:04,134 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:11:04,134 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:11:04,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852271794] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:11:04,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:11:04,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 19 [2023-04-02 04:11:04,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75700593] [2023-04-02 04:11:04,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:11:04,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:11:04,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:11:04,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:11:04,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2023-04-02 04:11:04,137 INFO L87 Difference]: Start difference. First operand 2756 states and 3255 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2023-04-02 04:11:05,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:11:05,504 INFO L93 Difference]: Finished difference Result 7254 states and 9275 transitions. [2023-04-02 04:11:05,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 04:11:05,505 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) Word has length 152 [2023-04-02 04:11:05,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:11:05,532 INFO L225 Difference]: With dead ends: 7254 [2023-04-02 04:11:05,533 INFO L226 Difference]: Without dead ends: 4874 [2023-04-02 04:11:05,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 197 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2023-04-02 04:11:05,543 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 512 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:11:05,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 306 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:11:05,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2023-04-02 04:11:06,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 3588. [2023-04-02 04:11:06,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3588 states, 2267 states have (on average 1.1539479488310542) internal successors, (2616), 2415 states have internal predecessors, (2616), 655 states have call successors, (655), 615 states have call predecessors, (655), 665 states have return successors, (892), 627 states have call predecessors, (892), 651 states have call successors, (892) [2023-04-02 04:11:06,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 4163 transitions. [2023-04-02 04:11:06,182 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 4163 transitions. Word has length 152 [2023-04-02 04:11:06,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:11:06,182 INFO L495 AbstractCegarLoop]: Abstraction has 3588 states and 4163 transitions. [2023-04-02 04:11:06,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2023-04-02 04:11:06,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 4163 transitions. [2023-04-02 04:11:06,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-02 04:11:06,188 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:11:06,189 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 04:11:06,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 04:11:06,401 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,SelfDestructingSolverStorable10 [2023-04-02 04:11:06,401 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:11:06,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:11:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash 198032208, now seen corresponding path program 1 times [2023-04-02 04:11:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:11:06,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124391666] [2023-04-02 04:11:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:11:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:11:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:11:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:11:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:11:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:11:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:11:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:11:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:11:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:11:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:11:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:11:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:11:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:11:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:11:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:11:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 04:11:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:11:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:11:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:11:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 04:11:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 04:11:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,672 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 04:11:06,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:11:06,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124391666] [2023-04-02 04:11:06,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124391666] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:11:06,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639407670] [2023-04-02 04:11:06,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:11:06,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:11:06,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:11:06,674 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 04:11:06,678 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 04:11:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:06,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 04:11:06,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:11:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-02 04:11:06,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:11:06,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639407670] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:11:06,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:11:06,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 17 [2023-04-02 04:11:06,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096202092] [2023-04-02 04:11:06,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:11:06,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 04:11:06,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:11:06,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 04:11:06,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-04-02 04:11:06,857 INFO L87 Difference]: Start difference. First operand 3588 states and 4163 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 04:11:07,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:11:07,067 INFO L93 Difference]: Finished difference Result 5046 states and 5788 transitions. [2023-04-02 04:11:07,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 04:11:07,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 152 [2023-04-02 04:11:07,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:11:07,076 INFO L225 Difference]: With dead ends: 5046 [2023-04-02 04:11:07,076 INFO L226 Difference]: Without dead ends: 1506 [2023-04-02 04:11:07,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-04-02 04:11:07,088 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 4 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 04:11:07,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 706 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 04:11:07,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2023-04-02 04:11:07,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1330. [2023-04-02 04:11:07,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 861 states have (on average 1.1440185830429732) internal successors, (985), 915 states have internal predecessors, (985), 220 states have call successors, (220), 220 states have call predecessors, (220), 248 states have return successors, (265), 228 states have call predecessors, (265), 216 states have call successors, (265) [2023-04-02 04:11:07,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1470 transitions. [2023-04-02 04:11:07,270 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1470 transitions. Word has length 152 [2023-04-02 04:11:07,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:11:07,271 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 1470 transitions. [2023-04-02 04:11:07,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 04:11:07,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1470 transitions. [2023-04-02 04:11:07,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-04-02 04:11:07,275 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:11:07,276 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2023-04-02 04:11:07,286 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 04:11:07,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:11:07,484 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:11:07,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:11:07,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1717574013, now seen corresponding path program 1 times [2023-04-02 04:11:07,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:11:07,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911344210] [2023-04-02 04:11:07,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:11:07,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:11:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:11:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:11:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:11:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:11:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:11:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:11:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:11:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:11:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:11:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:11:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:11:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:11:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:11:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:11:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 04:11:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:11:07,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 04:11:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:11:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:11:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:11:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 04:11:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 04:11:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,638 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-04-02 04:11:07,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:11:07,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911344210] [2023-04-02 04:11:07,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911344210] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:11:07,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788747118] [2023-04-02 04:11:07,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:11:07,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:11:07,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:11:07,640 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 04:11:07,643 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 04:11:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:11:07,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 04:11:07,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:11:07,820 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-02 04:11:07,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:11:07,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788747118] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:11:07,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:11:07,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 10 [2023-04-02 04:11:07,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956237835] [2023-04-02 04:11:07,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:11:07,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:11:07,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:11:07,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:11:07,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:11:07,826 INFO L87 Difference]: Start difference. First operand 1330 states and 1470 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 04:11:07,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:11:07,943 INFO L93 Difference]: Finished difference Result 1574 states and 1759 transitions. [2023-04-02 04:11:07,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:11:07,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 160 [2023-04-02 04:11:07,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:11:07,944 INFO L225 Difference]: With dead ends: 1574 [2023-04-02 04:11:07,944 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 04:11:07,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:11:07,949 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 45 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 04:11:07,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 302 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 04:11:07,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 04:11:07,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 04:11:07,950 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 04:11:07,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 04:11:07,951 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 160 [2023-04-02 04:11:07,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:11:07,951 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 04:11:07,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 04:11:07,951 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 04:11:07,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 04:11:07,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:11:07,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-02 04:11:08,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:11:08,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.