/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_spec3_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:19:49,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:19:49,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:19:49,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:19:49,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:19:49,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:19:49,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:19:49,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:19:49,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:19:49,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:19:49,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:19:49,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:19:49,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:19:49,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:19:49,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:19:49,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:19:49,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:19:49,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:19:49,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:19:49,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:19:49,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:19:49,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:19:49,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:19:49,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:19:49,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:19:49,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:19:49,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:19:49,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:19:49,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:19:49,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:19:49,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:19:49,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:19:49,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:19:49,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:19:49,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:19:49,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:19:49,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:19:49,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:19:49,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:19:49,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:19:49,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:19:49,318 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 04:19:49,351 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:19:49,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:19:49,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:19:49,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:19:49,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:19:49,353 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:19:49,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:19:49,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:19:49,354 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:19:49,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:19:49,355 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:19:49,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:19:49,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:19:49,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:19:49,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:19:49,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:19:49,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:19:49,356 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:19:49,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:19:49,356 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:19:49,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:19:49,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:19:49,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:19:49,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:19:49,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:19:49,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:19:49,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:19:49,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:19:49,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:19:49,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:19:49,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:19:49,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:19:49,358 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:19:49,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:19:49,358 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:19:49,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:19:49,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:19:49,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:19:49,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:19:49,642 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:19:49,643 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:19:49,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c [2023-04-02 04:19:50,860 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:19:51,108 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:19:51,109 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c [2023-04-02 04:19:51,119 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d0940f36/a1484f0fbcde439dbba7da8b397a2661/FLAG12e73a067 [2023-04-02 04:19:51,130 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d0940f36/a1484f0fbcde439dbba7da8b397a2661 [2023-04-02 04:19:51,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:19:51,133 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:19:51,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:19:51,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:19:51,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:19:51,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:19:51" (1/1) ... [2023-04-02 04:19:51,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4332168e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:51, skipping insertion in model container [2023-04-02 04:19:51,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:19:51" (1/1) ... [2023-04-02 04:19:51,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:19:51,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:19:51,360 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_spec3_product62.cil.c[1605,1618] [2023-04-02 04:19:51,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:19:51,508 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:19:51,524 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_spec3_product62.cil.c[1605,1618] [2023-04-02 04:19:51,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:19:51,618 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:19:51,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:51 WrapperNode [2023-04-02 04:19:51,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:19:51,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:19:51,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:19:51,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:19:51,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:51" (1/1) ... [2023-04-02 04:19:51,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:51" (1/1) ... [2023-04-02 04:19:51,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:51" (1/1) ... [2023-04-02 04:19:51,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:51" (1/1) ... [2023-04-02 04:19:51,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:51" (1/1) ... [2023-04-02 04:19:51,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:51" (1/1) ... [2023-04-02 04:19:51,718 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:51" (1/1) ... [2023-04-02 04:19:51,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:51" (1/1) ... [2023-04-02 04:19:51,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:19:51,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:19:51,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:19:51,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:19:51,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:51" (1/1) ... [2023-04-02 04:19:51,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:19:51,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:19:51,773 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 04:19:51,796 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 04:19:51,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:19:51,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:19:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:19:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:19:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:19:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:19:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:19:51,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:19:51,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:19:51,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:19:51,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:19:51,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:19:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:19:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:19:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:19:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:19:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:19:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:19:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:19:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-02 04:19:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:19:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:19:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:19:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:19:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:19:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:19:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:19:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-04-02 04:19:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:19:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-04-02 04:19:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:19:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:19:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:19:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:19:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:19:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:19:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-02 04:19:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-02 04:19:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:19:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:19:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:19:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:19:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:19:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:19:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:19:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:19:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:19:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:19:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:19:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:19:51,823 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:19:51,823 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:19:51,824 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:19:51,824 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:19:51,824 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:19:51,824 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:19:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:19:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:19:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:19:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:19:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:19:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:19:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:19:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:19:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:19:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:19:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:19:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:19:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:19:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:19:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:19:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:19:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:19:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:19:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:19:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-02 04:19:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:19:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:19:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:19:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:19:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:19:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:19:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:19:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:19:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-02 04:19:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:19:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:19:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:19:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:19:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-02 04:19:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-04-02 04:19:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:19:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-04-02 04:19:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:19:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:19:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:19:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:19:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:19:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:19:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:19:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:19:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:19:52,045 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:19:52,053 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:19:52,628 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:19:52,636 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:19:52,636 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:19:52,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:19:52 BoogieIcfgContainer [2023-04-02 04:19:52,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:19:52,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:19:52,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:19:52,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:19:52,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:19:51" (1/3) ... [2023-04-02 04:19:52,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bfdc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:19:52, skipping insertion in model container [2023-04-02 04:19:52,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:51" (2/3) ... [2023-04-02 04:19:52,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bfdc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:19:52, skipping insertion in model container [2023-04-02 04:19:52,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:19:52" (3/3) ... [2023-04-02 04:19:52,647 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product62.cil.c [2023-04-02 04:19:52,662 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:19:52,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:19:52,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:19:52,725 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;@611e89d5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:19:52,726 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:19:52,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 203 states, 113 states have (on average 1.2920353982300885) internal successors, (146), 129 states have internal predecessors, (146), 54 states have call successors, (54), 33 states have call predecessors, (54), 33 states have return successors, (54), 48 states have call predecessors, (54), 54 states have call successors, (54) [2023-04-02 04:19:52,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:19:52,746 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:52,747 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 04:19:52,747 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:52,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:52,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1375354300, now seen corresponding path program 1 times [2023-04-02 04:19:52,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:52,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498863212] [2023-04-02 04:19:52,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:52,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:53,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:53,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:53,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:53,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:53,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:53,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:19:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:53,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:19:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:53,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:19:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:53,103 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 04:19:53,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:53,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498863212] [2023-04-02 04:19:53,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498863212] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:53,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:53,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:19:53,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306763608] [2023-04-02 04:19:53,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:53,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:19:53,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:53,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:19:53,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:19:53,139 INFO L87 Difference]: Start difference. First operand has 203 states, 113 states have (on average 1.2920353982300885) internal successors, (146), 129 states have internal predecessors, (146), 54 states have call successors, (54), 33 states have call predecessors, (54), 33 states have return successors, (54), 48 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 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 04:19:53,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:53,737 INFO L93 Difference]: Finished difference Result 366 states and 475 transitions. [2023-04-02 04:19:53,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:19:53,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 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 04:19:53,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:53,750 INFO L225 Difference]: With dead ends: 366 [2023-04-02 04:19:53,750 INFO L226 Difference]: Without dead ends: 197 [2023-04-02 04:19:53,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:19:53,758 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 118 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:53,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 25 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:19:53,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-04-02 04:19:53,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 160. [2023-04-02 04:19:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 107 states have internal predecessors, (117), 39 states have call successors, (39), 31 states have call predecessors, (39), 26 states have return successors, (34), 28 states have call predecessors, (34), 34 states have call successors, (34) [2023-04-02 04:19:53,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 190 transitions. [2023-04-02 04:19:53,837 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 190 transitions. Word has length 52 [2023-04-02 04:19:53,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:53,838 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 190 transitions. [2023-04-02 04:19:53,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 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 04:19:53,838 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 190 transitions. [2023-04-02 04:19:53,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:19:53,840 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:53,841 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] [2023-04-02 04:19:53,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:19:53,841 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:53,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:53,842 INFO L85 PathProgramCache]: Analyzing trace with hash -586034285, now seen corresponding path program 1 times [2023-04-02 04:19:53,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:53,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909829620] [2023-04-02 04:19:53,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:53,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:53,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:19:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:19:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:19:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,038 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 04:19:54,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:54,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909829620] [2023-04-02 04:19:54,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909829620] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:54,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:54,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:19:54,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567378814] [2023-04-02 04:19:54,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:54,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:19:54,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:54,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:19:54,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:19:54,043 INFO L87 Difference]: Start difference. First operand 160 states and 190 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 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 04:19:54,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:54,492 INFO L93 Difference]: Finished difference Result 295 states and 362 transitions. [2023-04-02 04:19:54,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:19:54,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 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 53 [2023-04-02 04:19:54,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:54,502 INFO L225 Difference]: With dead ends: 295 [2023-04-02 04:19:54,502 INFO L226 Difference]: Without dead ends: 181 [2023-04-02 04:19:54,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:19:54,513 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 128 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:54,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 31 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:19:54,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-04-02 04:19:54,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 151. [2023-04-02 04:19:54,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 88 states have (on average 1.25) internal successors, (110), 101 states have internal predecessors, (110), 36 states have call successors, (36), 30 states have call predecessors, (36), 26 states have return successors, (32), 26 states have call predecessors, (32), 32 states have call successors, (32) [2023-04-02 04:19:54,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 178 transitions. [2023-04-02 04:19:54,558 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 178 transitions. Word has length 53 [2023-04-02 04:19:54,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:54,559 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 178 transitions. [2023-04-02 04:19:54,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 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 04:19:54,559 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 178 transitions. [2023-04-02 04:19:54,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-02 04:19:54,567 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:54,568 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] [2023-04-02 04:19:54,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:19:54,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:54,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:54,569 INFO L85 PathProgramCache]: Analyzing trace with hash -414439802, now seen corresponding path program 1 times [2023-04-02 04:19:54,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:54,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033016483] [2023-04-02 04:19:54,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:54,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:19:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:19:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:19:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:54,874 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 04:19:54,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:54,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033016483] [2023-04-02 04:19:54,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033016483] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:54,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:54,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:19:54,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021955533] [2023-04-02 04:19:54,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:54,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:19:54,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:54,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:19:54,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:19:54,877 INFO L87 Difference]: Start difference. First operand 151 states and 178 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (14), 5 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 04:19:55,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:55,498 INFO L93 Difference]: Finished difference Result 308 states and 380 transitions. [2023-04-02 04:19:55,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 04:19:55,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (14), 5 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 58 [2023-04-02 04:19:55,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:55,500 INFO L225 Difference]: With dead ends: 308 [2023-04-02 04:19:55,500 INFO L226 Difference]: Without dead ends: 181 [2023-04-02 04:19:55,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:19:55,503 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 348 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:55,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 36 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:19:55,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-04-02 04:19:55,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 151. [2023-04-02 04:19:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 88 states have (on average 1.2386363636363635) internal successors, (109), 100 states have internal predecessors, (109), 36 states have call successors, (36), 30 states have call predecessors, (36), 26 states have return successors, (32), 26 states have call predecessors, (32), 32 states have call successors, (32) [2023-04-02 04:19:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 177 transitions. [2023-04-02 04:19:55,543 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 177 transitions. Word has length 58 [2023-04-02 04:19:55,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:55,544 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 177 transitions. [2023-04-02 04:19:55,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (14), 5 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 04:19:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 177 transitions. [2023-04-02 04:19:55,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-04-02 04:19:55,545 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:55,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:19:55,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:19:55,546 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:55,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:55,546 INFO L85 PathProgramCache]: Analyzing trace with hash 540830953, now seen corresponding path program 1 times [2023-04-02 04:19:55,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:55,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120345401] [2023-04-02 04:19:55,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:55,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:19:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:19:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:19:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:19:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:19:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 04:19:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 04:19:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:55,806 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 04:19:55,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:55,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120345401] [2023-04-02 04:19:55,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120345401] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:55,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:55,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 04:19:55,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395707456] [2023-04-02 04:19:55,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:55,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 04:19:55,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:55,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 04:19:55,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-02 04:19:55,811 INFO L87 Difference]: Start difference. First operand 151 states and 177 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-04-02 04:19:56,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:56,459 INFO L93 Difference]: Finished difference Result 428 states and 528 transitions. [2023-04-02 04:19:56,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:19:56,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 76 [2023-04-02 04:19:56,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:56,462 INFO L225 Difference]: With dead ends: 428 [2023-04-02 04:19:56,462 INFO L226 Difference]: Without dead ends: 301 [2023-04-02 04:19:56,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:19:56,464 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 281 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:56,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 94 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:19:56,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-04-02 04:19:56,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 258. [2023-04-02 04:19:56,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 166 states have internal predecessors, (185), 51 states have call successors, (51), 47 states have call predecessors, (51), 51 states have return successors, (57), 51 states have call predecessors, (57), 47 states have call successors, (57) [2023-04-02 04:19:56,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 293 transitions. [2023-04-02 04:19:56,526 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 293 transitions. Word has length 76 [2023-04-02 04:19:56,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:56,527 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 293 transitions. [2023-04-02 04:19:56,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-04-02 04:19:56,527 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 293 transitions. [2023-04-02 04:19:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 04:19:56,529 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:56,530 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] [2023-04-02 04:19:56,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:19:56,530 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:56,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:56,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1872547469, now seen corresponding path program 1 times [2023-04-02 04:19:56,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:56,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468178662] [2023-04-02 04:19:56,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:56,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:19:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:19:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:19:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:19:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:19:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:19:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 04:19:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 04:19:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:19:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:19:56,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:56,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468178662] [2023-04-02 04:19:56,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468178662] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:56,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:56,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:19:56,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176967788] [2023-04-02 04:19:56,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:56,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:19:56,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:56,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:19:56,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:19:56,728 INFO L87 Difference]: Start difference. First operand 258 states and 293 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-04-02 04:19:57,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:57,535 INFO L93 Difference]: Finished difference Result 683 states and 839 transitions. [2023-04-02 04:19:57,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:19:57,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 90 [2023-04-02 04:19:57,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:57,543 INFO L225 Difference]: With dead ends: 683 [2023-04-02 04:19:57,544 INFO L226 Difference]: Without dead ends: 449 [2023-04-02 04:19:57,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:19:57,545 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 405 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:57,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 85 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:19:57,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-04-02 04:19:57,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 406. [2023-04-02 04:19:57,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 247 states have (on average 1.1862348178137652) internal successors, (293), 266 states have internal predecessors, (293), 78 states have call successors, (78), 71 states have call predecessors, (78), 80 states have return successors, (97), 79 states have call predecessors, (97), 74 states have call successors, (97) [2023-04-02 04:19:57,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 468 transitions. [2023-04-02 04:19:57,622 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 468 transitions. Word has length 90 [2023-04-02 04:19:57,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:57,626 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 468 transitions. [2023-04-02 04:19:57,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-04-02 04:19:57,626 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 468 transitions. [2023-04-02 04:19:57,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 04:19:57,628 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:57,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:19:57,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:19:57,628 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:57,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:57,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1425900121, now seen corresponding path program 1 times [2023-04-02 04:19:57,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:57,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732047097] [2023-04-02 04:19:57,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:57,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:19:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:19:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:19:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:19:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:19:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:19:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:19:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 04:19:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 04:19:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 04:19:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:57,850 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 04:19:57,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:57,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732047097] [2023-04-02 04:19:57,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732047097] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:57,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:57,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:19:57,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185277257] [2023-04-02 04:19:57,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:57,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:19:57,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:57,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:19:57,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:19:57,854 INFO L87 Difference]: Start difference. First operand 406 states and 468 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-04-02 04:19:59,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:59,041 INFO L93 Difference]: Finished difference Result 931 states and 1161 transitions. [2023-04-02 04:19:59,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 04:19:59,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 94 [2023-04-02 04:19:59,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:59,047 INFO L225 Difference]: With dead ends: 931 [2023-04-02 04:19:59,047 INFO L226 Difference]: Without dead ends: 686 [2023-04-02 04:19:59,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2023-04-02 04:19:59,049 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 702 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:59,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 126 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 04:19:59,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2023-04-02 04:19:59,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 614. [2023-04-02 04:19:59,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 375 states have (on average 1.1786666666666668) internal successors, (442), 402 states have internal predecessors, (442), 116 states have call successors, (116), 104 states have call predecessors, (116), 122 states have return successors, (161), 122 states have call predecessors, (161), 112 states have call successors, (161) [2023-04-02 04:19:59,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 719 transitions. [2023-04-02 04:19:59,128 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 719 transitions. Word has length 94 [2023-04-02 04:19:59,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:59,128 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 719 transitions. [2023-04-02 04:19:59,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-04-02 04:19:59,129 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 719 transitions. [2023-04-02 04:19:59,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 04:19:59,130 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:59,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:19:59,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:19:59,131 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:59,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:59,131 INFO L85 PathProgramCache]: Analyzing trace with hash 933406888, now seen corresponding path program 1 times [2023-04-02 04:19:59,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:59,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791563986] [2023-04-02 04:19:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:59,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:19:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:19:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:19:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:19:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:19:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:19:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:19:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 04:19:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 04:19:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 04:19:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:59,314 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 04:19:59,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:59,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791563986] [2023-04-02 04:19:59,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791563986] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:59,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:59,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:19:59,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532463279] [2023-04-02 04:19:59,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:59,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:19:59,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:59,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:19:59,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:19:59,316 INFO L87 Difference]: Start difference. First operand 614 states and 719 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 04:20:00,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:20:00,025 INFO L93 Difference]: Finished difference Result 1131 states and 1374 transitions. [2023-04-02 04:20:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:20:00,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 94 [2023-04-02 04:20:00,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:20:00,030 INFO L225 Difference]: With dead ends: 1131 [2023-04-02 04:20:00,030 INFO L226 Difference]: Without dead ends: 674 [2023-04-02 04:20:00,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:20:00,032 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 360 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:20:00,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 64 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:20:00,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2023-04-02 04:20:00,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 614. [2023-04-02 04:20:00,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 375 states have (on average 1.176) internal successors, (441), 402 states have internal predecessors, (441), 116 states have call successors, (116), 104 states have call predecessors, (116), 122 states have return successors, (161), 122 states have call predecessors, (161), 112 states have call successors, (161) [2023-04-02 04:20:00,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 718 transitions. [2023-04-02 04:20:00,096 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 718 transitions. Word has length 94 [2023-04-02 04:20:00,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:20:00,098 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 718 transitions. [2023-04-02 04:20:00,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 04:20:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 718 transitions. [2023-04-02 04:20:00,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 04:20:00,100 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:20:00,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:20:00,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:20:00,100 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:20:00,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:20:00,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1592938410, now seen corresponding path program 1 times [2023-04-02 04:20:00,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:20:00,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161217776] [2023-04-02 04:20:00,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:20:00,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:20:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:20:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:20:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:20:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:20:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:20:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:20:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:20:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:20:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 04:20:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 04:20:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 04:20:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:00,304 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 04:20:00,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:20:00,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161217776] [2023-04-02 04:20:00,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161217776] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:20:00,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:20:00,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:20:00,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290413389] [2023-04-02 04:20:00,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:20:00,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:20:00,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:20:00,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:20:00,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:20:00,307 INFO L87 Difference]: Start difference. First operand 614 states and 718 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 04:20:01,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:20:01,359 INFO L93 Difference]: Finished difference Result 1275 states and 1558 transitions. [2023-04-02 04:20:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 04:20:01,359 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) Word has length 94 [2023-04-02 04:20:01,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:20:01,364 INFO L225 Difference]: With dead ends: 1275 [2023-04-02 04:20:01,364 INFO L226 Difference]: Without dead ends: 685 [2023-04-02 04:20:01,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-04-02 04:20:01,367 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 364 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:20:01,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 88 Invalid, 1781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 04:20:01,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2023-04-02 04:20:01,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 621. [2023-04-02 04:20:01,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 382 states have (on average 1.1701570680628273) internal successors, (447), 408 states have internal predecessors, (447), 115 states have call successors, (115), 103 states have call predecessors, (115), 123 states have return successors, (163), 124 states have call predecessors, (163), 111 states have call successors, (163) [2023-04-02 04:20:01,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 725 transitions. [2023-04-02 04:20:01,434 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 725 transitions. Word has length 94 [2023-04-02 04:20:01,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:20:01,435 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 725 transitions. [2023-04-02 04:20:01,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 04:20:01,435 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 725 transitions. [2023-04-02 04:20:01,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-04-02 04:20:01,439 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:20:01,439 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:20:01,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:20:01,439 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:20:01,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:20:01,440 INFO L85 PathProgramCache]: Analyzing trace with hash 977915988, now seen corresponding path program 1 times [2023-04-02 04:20:01,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:20:01,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719537118] [2023-04-02 04:20:01,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:20:01,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:20:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:20:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:20:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:20:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:20:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:20:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:20:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:20:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:20:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 04:20:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 04:20:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 04:20:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 04:20:01,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:20:01,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719537118] [2023-04-02 04:20:01,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719537118] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:20:01,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371797192] [2023-04-02 04:20:01,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:20:01,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:20:01,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:20:01,791 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 04:20:01,829 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 04:20:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:01,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 29 conjunts are in the unsatisfiable core [2023-04-02 04:20:01,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:20:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:20:02,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:20:02,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371797192] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:20:02,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:20:02,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 17 [2023-04-02 04:20:02,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871011738] [2023-04-02 04:20:02,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:20:02,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:20:02,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:20:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:20:02,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-04-02 04:20:02,254 INFO L87 Difference]: Start difference. First operand 621 states and 725 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2023-04-02 04:20:02,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:20:02,619 INFO L93 Difference]: Finished difference Result 1800 states and 2145 transitions. [2023-04-02 04:20:02,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 04:20:02,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 106 [2023-04-02 04:20:02,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:20:02,626 INFO L225 Difference]: With dead ends: 1800 [2023-04-02 04:20:02,626 INFO L226 Difference]: Without dead ends: 1203 [2023-04-02 04:20:02,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-04-02 04:20:02,631 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 94 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:20:02,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 847 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 04:20:02,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2023-04-02 04:20:02,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1200. [2023-04-02 04:20:02,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 745 states have (on average 1.1624161073825503) internal successors, (866), 793 states have internal predecessors, (866), 220 states have call successors, (220), 197 states have call predecessors, (220), 234 states have return successors, (318), 238 states have call predecessors, (318), 216 states have call successors, (318) [2023-04-02 04:20:02,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1404 transitions. [2023-04-02 04:20:02,765 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1404 transitions. Word has length 106 [2023-04-02 04:20:02,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:20:02,767 INFO L495 AbstractCegarLoop]: Abstraction has 1200 states and 1404 transitions. [2023-04-02 04:20:02,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2023-04-02 04:20:02,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1404 transitions. [2023-04-02 04:20:02,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-04-02 04:20:02,771 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:20:02,771 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:20:02,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 04:20:02,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:20:02,981 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:20:02,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:20:02,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1466919632, now seen corresponding path program 1 times [2023-04-02 04:20:02,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:20:02,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007273329] [2023-04-02 04:20:02,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:20:02,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:20:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:20:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:20:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:20:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:20:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:20:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:20:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:20:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:20:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:20:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 04:20:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 04:20:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 04:20:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 04:20:03,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:20:03,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007273329] [2023-04-02 04:20:03,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007273329] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:20:03,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:20:03,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 04:20:03,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462832551] [2023-04-02 04:20:03,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:20:03,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 04:20:03,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:20:03,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 04:20:03,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:20:03,211 INFO L87 Difference]: Start difference. First operand 1200 states and 1404 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (24), 7 states have call predecessors, (24), 4 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 04:20:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:20:05,117 INFO L93 Difference]: Finished difference Result 2528 states and 3145 transitions. [2023-04-02 04:20:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 04:20:05,117 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (24), 7 states have call predecessors, (24), 4 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) Word has length 110 [2023-04-02 04:20:05,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:20:05,126 INFO L225 Difference]: With dead ends: 2528 [2023-04-02 04:20:05,126 INFO L226 Difference]: Without dead ends: 1352 [2023-04-02 04:20:05,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=251, Invalid=871, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 04:20:05,132 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 510 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 2822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:20:05,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 315 Invalid, 2822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 04:20:05,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2023-04-02 04:20:05,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1134. [2023-04-02 04:20:05,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 701 states have (on average 1.144079885877318) internal successors, (802), 749 states have internal predecessors, (802), 209 states have call successors, (209), 186 states have call predecessors, (209), 223 states have return successors, (301), 227 states have call predecessors, (301), 205 states have call successors, (301) [2023-04-02 04:20:05,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1312 transitions. [2023-04-02 04:20:05,296 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1312 transitions. Word has length 110 [2023-04-02 04:20:05,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:20:05,296 INFO L495 AbstractCegarLoop]: Abstraction has 1134 states and 1312 transitions. [2023-04-02 04:20:05,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (24), 7 states have call predecessors, (24), 4 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 04:20:05,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1312 transitions. [2023-04-02 04:20:05,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-04-02 04:20:05,299 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:20:05,299 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:20:05,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 04:20:05,300 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:20:05,300 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:20:05,300 INFO L85 PathProgramCache]: Analyzing trace with hash 232802550, now seen corresponding path program 1 times [2023-04-02 04:20:05,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:20:05,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095129812] [2023-04-02 04:20:05,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:20:05,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:20:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:20:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:20:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:20:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:20:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:20:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:20:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:20:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:20:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:20:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 04:20:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 04:20:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 04:20:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:05,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:20:05,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:20:05,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095129812] [2023-04-02 04:20:05,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095129812] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:20:05,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:20:05,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:20:05,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002603117] [2023-04-02 04:20:05,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:20:05,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:20:05,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:20:05,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:20:05,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:20:05,533 INFO L87 Difference]: Start difference. First operand 1134 states and 1312 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (24), 6 states have call predecessors, (24), 4 states have return successors, (18), 5 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 04:20:06,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:20:06,758 INFO L93 Difference]: Finished difference Result 2314 states and 2721 transitions. [2023-04-02 04:20:06,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 04:20:06,760 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (24), 6 states have call predecessors, (24), 4 states have return successors, (18), 5 states have call predecessors, (18), 2 states have call successors, (18) Word has length 110 [2023-04-02 04:20:06,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:20:06,767 INFO L225 Difference]: With dead ends: 2314 [2023-04-02 04:20:06,768 INFO L226 Difference]: Without dead ends: 1204 [2023-04-02 04:20:06,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2023-04-02 04:20:06,772 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 580 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:20:06,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 258 Invalid, 2160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 04:20:06,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2023-04-02 04:20:06,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1134. [2023-04-02 04:20:06,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 701 states have (on average 1.1326676176890156) internal successors, (794), 749 states have internal predecessors, (794), 209 states have call successors, (209), 186 states have call predecessors, (209), 223 states have return successors, (286), 227 states have call predecessors, (286), 205 states have call successors, (286) [2023-04-02 04:20:06,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1289 transitions. [2023-04-02 04:20:06,919 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1289 transitions. Word has length 110 [2023-04-02 04:20:06,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:20:06,919 INFO L495 AbstractCegarLoop]: Abstraction has 1134 states and 1289 transitions. [2023-04-02 04:20:06,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (24), 6 states have call predecessors, (24), 4 states have return successors, (18), 5 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 04:20:06,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1289 transitions. [2023-04-02 04:20:06,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-04-02 04:20:06,925 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:20:06,925 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:20:06,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 04:20:06,925 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:20:06,926 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:20:06,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1248762461, now seen corresponding path program 1 times [2023-04-02 04:20:06,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:20:06,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563617925] [2023-04-02 04:20:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:20:06,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:20:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:20:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:20:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:20:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:20:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:20:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:20:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:20:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:20:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:20:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:20:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 04:20:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 04:20:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:20:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:20:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:20:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 04:20:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 04:20:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 04:20:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,168 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 04:20:07,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:20:07,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563617925] [2023-04-02 04:20:07,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563617925] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:20:07,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381801946] [2023-04-02 04:20:07,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:20:07,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:20:07,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:20:07,171 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 04:20:07,201 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 04:20:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:20:07,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 22 conjunts are in the unsatisfiable core [2023-04-02 04:20:07,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:20:07,552 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-02 04:20:07,552 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:20:08,066 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 04:20:08,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381801946] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:20:08,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:20:08,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 23 [2023-04-02 04:20:08,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789048105] [2023-04-02 04:20:08,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:20:08,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-04-02 04:20:08,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:20:08,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-04-02 04:20:08,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2023-04-02 04:20:08,070 INFO L87 Difference]: Start difference. First operand 1134 states and 1289 transitions. Second operand has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 16 states have internal predecessors, (168), 6 states have call successors, (70), 11 states have call predecessors, (70), 12 states have return successors, (58), 8 states have call predecessors, (58), 6 states have call successors, (58) [2023-04-02 04:20:10,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:20:10,004 INFO L93 Difference]: Finished difference Result 2834 states and 3713 transitions. [2023-04-02 04:20:10,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 04:20:10,004 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 16 states have internal predecessors, (168), 6 states have call successors, (70), 11 states have call predecessors, (70), 12 states have return successors, (58), 8 states have call predecessors, (58), 6 states have call successors, (58) Word has length 158 [2023-04-02 04:20:10,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:20:10,007 INFO L225 Difference]: With dead ends: 2834 [2023-04-02 04:20:10,007 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 04:20:10,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 363 SyntacticMatches, 11 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=546, Invalid=1616, Unknown=0, NotChecked=0, Total=2162 [2023-04-02 04:20:10,016 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 640 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 2642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:20:10,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 451 Invalid, 2642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 04:20:10,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 04:20:10,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 04:20:10,017 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 04:20:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 04:20:10,017 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2023-04-02 04:20:10,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:20:10,017 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 04:20:10,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 16 states have internal predecessors, (168), 6 states have call successors, (70), 11 states have call predecessors, (70), 12 states have return successors, (58), 8 states have call predecessors, (58), 6 states have call successors, (58) [2023-04-02 04:20:10,018 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 04:20:10,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 04:20:10,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:20:10,033 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 04:20:10,230 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,SelfDestructingSolverStorable11 [2023-04-02 04:20:10,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-02 04:21:27,363 WARN L223 SmtUtils]: Spent 1.28m on a formula simplification. DAG size of input: 181 DAG size of output: 246 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 04:22:42,327 WARN L223 SmtUtils]: Spent 1.25m on a formula simplification. DAG size of input: 181 DAG size of output: 246 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)