/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 17:42:14,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 17:42:14,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 17:42:14,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 17:42:14,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 17:42:14,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 17:42:14,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 17:42:14,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 17:42:14,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 17:42:14,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 17:42:14,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 17:42:14,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 17:42:14,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 17:42:14,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 17:42:14,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 17:42:14,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 17:42:14,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 17:42:14,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 17:42:14,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 17:42:14,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 17:42:14,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 17:42:14,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 17:42:14,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 17:42:14,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 17:42:14,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 17:42:14,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 17:42:14,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 17:42:14,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 17:42:14,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 17:42:14,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 17:42:14,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 17:42:14,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 17:42:14,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 17:42:14,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 17:42:14,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 17:42:14,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 17:42:14,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 17:42:14,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 17:42:14,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 17:42:14,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 17:42:14,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 17:42:14,231 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 [2020-10-23 17:42:14,284 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 17:42:14,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 17:42:14,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 17:42:14,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 17:42:14,288 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 17:42:14,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 17:42:14,288 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 17:42:14,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 17:42:14,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 17:42:14,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 17:42:14,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 17:42:14,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 17:42:14,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 17:42:14,291 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 17:42:14,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 17:42:14,291 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 17:42:14,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 17:42:14,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 17:42:14,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 17:42:14,292 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 17:42:14,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 17:42:14,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:42:14,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 17:42:14,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 17:42:14,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 17:42:14,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 17:42:14,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 17:42:14,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 17:42:14,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 17:42:14,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 17:42:14,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 17:42:14,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 17:42:14,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 17:42:14,703 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 17:42:14,704 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 17:42:14,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-10-23 17:42:14,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd240e2e4/d11d1a91df294148a2f69384d867efd0/FLAGb8c89ea34 [2020-10-23 17:42:15,468 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 17:42:15,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-10-23 17:42:15,490 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd240e2e4/d11d1a91df294148a2f69384d867efd0/FLAGb8c89ea34 [2020-10-23 17:42:15,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd240e2e4/d11d1a91df294148a2f69384d867efd0 [2020-10-23 17:42:15,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 17:42:15,747 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 17:42:15,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 17:42:15,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 17:42:15,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 17:42:15,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:42:15" (1/1) ... [2020-10-23 17:42:15,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673a6309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:15, skipping insertion in model container [2020-10-23 17:42:15,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:42:15" (1/1) ... [2020-10-23 17:42:15,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 17:42:15,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 17:42:16,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:42:16,237 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 17:42:16,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:42:16,432 INFO L208 MainTranslator]: Completed translation [2020-10-23 17:42:16,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:16 WrapperNode [2020-10-23 17:42:16,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 17:42:16,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 17:42:16,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 17:42:16,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 17:42:16,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:16" (1/1) ... [2020-10-23 17:42:16,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:16" (1/1) ... [2020-10-23 17:42:16,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:16" (1/1) ... [2020-10-23 17:42:16,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:16" (1/1) ... [2020-10-23 17:42:16,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:16" (1/1) ... [2020-10-23 17:42:16,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:16" (1/1) ... [2020-10-23 17:42:16,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:16" (1/1) ... [2020-10-23 17:42:16,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 17:42:16,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 17:42:16,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 17:42:16,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 17:42:16,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:42:16,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 17:42:16,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 17:42:16,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 17:42:16,600 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 17:42:16,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 17:42:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 17:42:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 17:42:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 17:42:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 17:42:16,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 17:42:16,602 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 17:42:16,603 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 17:42:16,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 17:42:16,604 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 17:42:16,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 17:42:16,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 17:42:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 17:42:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 17:42:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 17:42:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 17:42:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 17:42:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 17:42:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 17:42:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 17:42:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 17:42:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 17:42:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 17:42:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 17:42:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 17:42:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 17:42:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 17:42:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 17:42:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 17:42:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 17:42:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 17:42:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 17:42:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 17:42:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 17:42:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 17:42:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 17:42:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 17:42:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 17:42:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 17:42:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 17:42:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 17:42:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 17:42:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 17:42:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 17:42:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 17:42:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 17:42:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 17:42:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 17:42:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 17:42:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 17:42:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 17:42:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 17:42:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 17:42:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 17:42:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 17:42:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 17:42:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 17:42:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 17:42:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 17:42:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 17:42:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 17:42:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 17:42:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 17:42:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 17:42:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 17:42:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 17:42:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 17:42:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 17:42:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 17:42:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 17:42:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 17:42:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 17:42:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 17:42:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 17:42:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 17:42:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 17:42:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 17:42:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 17:42:16,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 17:42:16,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 17:42:16,635 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 17:42:16,635 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 17:42:16,635 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 17:42:16,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 17:42:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 17:42:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 17:42:17,940 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 17:42:17,940 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 17:42:17,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:42:17 BoogieIcfgContainer [2020-10-23 17:42:17,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 17:42:17,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 17:42:17,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 17:42:17,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 17:42:17,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 05:42:15" (1/3) ... [2020-10-23 17:42:17,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8919ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:42:17, skipping insertion in model container [2020-10-23 17:42:17,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:16" (2/3) ... [2020-10-23 17:42:17,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8919ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:42:17, skipping insertion in model container [2020-10-23 17:42:17,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:42:17" (3/3) ... [2020-10-23 17:42:17,971 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-10-23 17:42:17,984 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 17:42:17,989 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 17:42:18,002 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 17:42:18,041 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 17:42:18,042 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 17:42:18,042 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 17:42:18,042 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 17:42:18,043 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 17:42:18,043 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 17:42:18,043 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 17:42:18,044 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 17:42:18,072 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2020-10-23 17:42:18,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-23 17:42:18,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:18,082 INFO L422 BasicCegarLoop]: 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] [2020-10-23 17:42:18,082 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:42:18,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:18,089 INFO L82 PathProgramCache]: Analyzing trace with hash -939707809, now seen corresponding path program 1 times [2020-10-23 17:42:18,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:18,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027130752] [2020-10-23 17:42:18,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:18,796 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:18,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:18,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:18,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:18,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:18,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:18,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 17:42:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:18,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-23 17:42:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:42:18,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027130752] [2020-10-23 17:42:18,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:42:18,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 17:42:18,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452209410] [2020-10-23 17:42:18,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 17:42:18,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:18,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 17:42:18,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 17:42:18,899 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 3 states. [2020-10-23 17:42:19,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:42:19,990 INFO L93 Difference]: Finished difference Result 254 states and 337 transitions. [2020-10-23 17:42:19,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 17:42:19,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-10-23 17:42:19,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:42:20,005 INFO L225 Difference]: With dead ends: 254 [2020-10-23 17:42:20,005 INFO L226 Difference]: Without dead ends: 136 [2020-10-23 17:42:20,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 17:42:20,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-23 17:42:20,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 106. [2020-10-23 17:42:20,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-23 17:42:20,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 124 transitions. [2020-10-23 17:42:20,097 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 124 transitions. Word has length 47 [2020-10-23 17:42:20,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:42:20,097 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 124 transitions. [2020-10-23 17:42:20,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 17:42:20,098 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 124 transitions. [2020-10-23 17:42:20,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-23 17:42:20,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:20,101 INFO L422 BasicCegarLoop]: 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] [2020-10-23 17:42:20,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 17:42:20,101 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:42:20,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:20,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1565622039, now seen corresponding path program 1 times [2020-10-23 17:42:20,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:20,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811944] [2020-10-23 17:42:20,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:20,491 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:20,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:20,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:20,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:20,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:20,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:20,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-23 17:42:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:20,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 17:42:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:42:20,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811944] [2020-10-23 17:42:20,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:42:20,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 17:42:20,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535606772] [2020-10-23 17:42:20,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 17:42:20,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:20,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 17:42:20,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 17:42:20,542 INFO L87 Difference]: Start difference. First operand 106 states and 124 transitions. Second operand 4 states. [2020-10-23 17:42:21,103 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 17:42:21,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:42:21,866 INFO L93 Difference]: Finished difference Result 184 states and 224 transitions. [2020-10-23 17:42:21,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 17:42:21,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-23 17:42:21,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:42:21,869 INFO L225 Difference]: With dead ends: 184 [2020-10-23 17:42:21,869 INFO L226 Difference]: Without dead ends: 120 [2020-10-23 17:42:21,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 17:42:21,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-23 17:42:21,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 97. [2020-10-23 17:42:21,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-23 17:42:21,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2020-10-23 17:42:21,916 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 48 [2020-10-23 17:42:21,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:42:21,917 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2020-10-23 17:42:21,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 17:42:21,917 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2020-10-23 17:42:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-23 17:42:21,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:21,919 INFO L422 BasicCegarLoop]: 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] [2020-10-23 17:42:21,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 17:42:21,920 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:42:21,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:21,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1772534127, now seen corresponding path program 1 times [2020-10-23 17:42:21,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:21,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844840013] [2020-10-23 17:42:21,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:22,362 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:22,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:22,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:22,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:22,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:22,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:22,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 17:42:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:22,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-23 17:42:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:22,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:42:22,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844840013] [2020-10-23 17:42:22,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:42:22,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 17:42:22,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544335415] [2020-10-23 17:42:22,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 17:42:22,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:22,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 17:42:22,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-23 17:42:22,485 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand 8 states. [2020-10-23 17:42:22,882 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:42:23,247 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:23,554 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:23,878 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:24,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:42:24,870 INFO L93 Difference]: Finished difference Result 193 states and 238 transitions. [2020-10-23 17:42:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 17:42:24,871 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-10-23 17:42:24,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:42:24,873 INFO L225 Difference]: With dead ends: 193 [2020-10-23 17:42:24,873 INFO L226 Difference]: Without dead ends: 120 [2020-10-23 17:42:24,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-23 17:42:24,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-23 17:42:24,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 97. [2020-10-23 17:42:24,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-23 17:42:24,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2020-10-23 17:42:24,917 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 52 [2020-10-23 17:42:24,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:42:24,918 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2020-10-23 17:42:24,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 17:42:24,918 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2020-10-23 17:42:24,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-23 17:42:24,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:24,921 INFO L422 BasicCegarLoop]: 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] [2020-10-23 17:42:24,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 17:42:24,921 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:42:24,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:24,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1206494472, now seen corresponding path program 1 times [2020-10-23 17:42:24,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:24,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329351456] [2020-10-23 17:42:24,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:25,272 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:25,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:25,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:25,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:25,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:25,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:25,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-23 17:42:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:25,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:25,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-23 17:42:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:25,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-23 17:42:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:25,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:42:25,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329351456] [2020-10-23 17:42:25,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:42:25,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 17:42:25,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606230732] [2020-10-23 17:42:25,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 17:42:25,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:25,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 17:42:25,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 17:42:25,357 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand 6 states. [2020-10-23 17:42:25,716 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:42:26,864 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 17:42:27,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:42:27,287 INFO L93 Difference]: Finished difference Result 278 states and 344 transitions. [2020-10-23 17:42:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 17:42:27,287 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-10-23 17:42:27,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:42:27,294 INFO L225 Difference]: With dead ends: 278 [2020-10-23 17:42:27,294 INFO L226 Difference]: Without dead ends: 205 [2020-10-23 17:42:27,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-23 17:42:27,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-23 17:42:27,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 162. [2020-10-23 17:42:27,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-23 17:42:27,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 186 transitions. [2020-10-23 17:42:27,369 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 186 transitions. Word has length 60 [2020-10-23 17:42:27,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:42:27,370 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 186 transitions. [2020-10-23 17:42:27,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 17:42:27,370 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 186 transitions. [2020-10-23 17:42:27,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-23 17:42:27,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:27,372 INFO L422 BasicCegarLoop]: 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] [2020-10-23 17:42:27,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 17:42:27,373 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:42:27,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:27,373 INFO L82 PathProgramCache]: Analyzing trace with hash -2093487486, now seen corresponding path program 1 times [2020-10-23 17:42:27,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:27,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430436620] [2020-10-23 17:42:27,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:27,740 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:27,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:27,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:27,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:27,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:27,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:27,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-23 17:42:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:27,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:27,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:42:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:27,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 17:42:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:27,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-23 17:42:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:27,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-23 17:42:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:27,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:42:27,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430436620] [2020-10-23 17:42:27,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:42:27,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 17:42:27,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255892943] [2020-10-23 17:42:27,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 17:42:27,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:27,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 17:42:27,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-23 17:42:27,852 INFO L87 Difference]: Start difference. First operand 162 states and 186 transitions. Second operand 12 states. [2020-10-23 17:42:28,408 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:42:28,780 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:29,087 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:29,385 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:29,961 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 17:42:30,842 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:31,186 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:42:31,522 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:42:31,804 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 17:42:32,122 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:42:32,435 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:42:33,389 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:42:33,707 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:34,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:42:34,392 INFO L93 Difference]: Finished difference Result 570 states and 752 transitions. [2020-10-23 17:42:34,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 17:42:34,394 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 74 [2020-10-23 17:42:34,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:42:34,399 INFO L225 Difference]: With dead ends: 570 [2020-10-23 17:42:34,399 INFO L226 Difference]: Without dead ends: 432 [2020-10-23 17:42:34,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-10-23 17:42:34,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-10-23 17:42:34,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 374. [2020-10-23 17:42:34,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-23 17:42:34,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 444 transitions. [2020-10-23 17:42:34,526 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 444 transitions. Word has length 74 [2020-10-23 17:42:34,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:42:34,527 INFO L481 AbstractCegarLoop]: Abstraction has 374 states and 444 transitions. [2020-10-23 17:42:34,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 17:42:34,527 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 444 transitions. [2020-10-23 17:42:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-23 17:42:34,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:34,533 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 17:42:34,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 17:42:34,533 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:42:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:34,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1112217498, now seen corresponding path program 1 times [2020-10-23 17:42:34,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:34,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341928278] [2020-10-23 17:42:34,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:34,874 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:34,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:34,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:34,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:34,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:34,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:34,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 17:42:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:34,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:34,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:34,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:42:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:34,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 17:42:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:34,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-23 17:42:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:34,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:42:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:35,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-23 17:42:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:35,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-23 17:42:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:35,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:35,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 17:42:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:35,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-23 17:42:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:35,057 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-23 17:42:35,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341928278] [2020-10-23 17:42:35,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064353956] [2020-10-23 17:42:35,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:42:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:35,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-23 17:42:35,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 17:42:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 17:42:35,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 17:42:35,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-10-23 17:42:35,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630239709] [2020-10-23 17:42:35,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 17:42:35,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:35,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 17:42:35,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-23 17:42:35,334 INFO L87 Difference]: Start difference. First operand 374 states and 444 transitions. Second operand 6 states. [2020-10-23 17:42:35,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:42:35,605 INFO L93 Difference]: Finished difference Result 739 states and 895 transitions. [2020-10-23 17:42:35,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 17:42:35,606 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2020-10-23 17:42:35,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:42:35,612 INFO L225 Difference]: With dead ends: 739 [2020-10-23 17:42:35,612 INFO L226 Difference]: Without dead ends: 389 [2020-10-23 17:42:35,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-23 17:42:35,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-23 17:42:35,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2020-10-23 17:42:35,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-10-23 17:42:35,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 460 transitions. [2020-10-23 17:42:35,757 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 460 transitions. Word has length 110 [2020-10-23 17:42:35,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:42:35,760 INFO L481 AbstractCegarLoop]: Abstraction has 389 states and 460 transitions. [2020-10-23 17:42:35,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 17:42:35,760 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 460 transitions. [2020-10-23 17:42:35,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-23 17:42:35,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:35,765 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 17:42:35,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-23 17:42:35,979 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:42:35,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:35,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1719032142, now seen corresponding path program 1 times [2020-10-23 17:42:35,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:35,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857947517] [2020-10-23 17:42:35,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,292 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:36,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 17:42:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-23 17:42:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:42:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 17:42:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-23 17:42:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:42:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-23 17:42:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 17:42:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-23 17:42:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-23 17:42:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 17:42:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,569 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-23 17:42:36,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857947517] [2020-10-23 17:42:36,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225848094] [2020-10-23 17:42:36,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:42:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:36,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-23 17:42:36,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 17:42:37,018 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:42:37,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 17:42:37,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2020-10-23 17:42:37,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096510826] [2020-10-23 17:42:37,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 17:42:37,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:37,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 17:42:37,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-10-23 17:42:37,023 INFO L87 Difference]: Start difference. First operand 389 states and 460 transitions. Second operand 8 states. [2020-10-23 17:42:38,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:42:38,170 INFO L93 Difference]: Finished difference Result 941 states and 1241 transitions. [2020-10-23 17:42:38,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 17:42:38,171 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 118 [2020-10-23 17:42:38,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:42:38,178 INFO L225 Difference]: With dead ends: 941 [2020-10-23 17:42:38,179 INFO L226 Difference]: Without dead ends: 674 [2020-10-23 17:42:38,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2020-10-23 17:42:38,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-10-23 17:42:38,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 599. [2020-10-23 17:42:38,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2020-10-23 17:42:38,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 739 transitions. [2020-10-23 17:42:38,368 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 739 transitions. Word has length 118 [2020-10-23 17:42:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:42:38,369 INFO L481 AbstractCegarLoop]: Abstraction has 599 states and 739 transitions. [2020-10-23 17:42:38,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 17:42:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 739 transitions. [2020-10-23 17:42:38,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-23 17:42:38,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:38,372 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 17:42:38,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:42:38,586 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:42:38,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:38,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1057824600, now seen corresponding path program 1 times [2020-10-23 17:42:38,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:38,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539495160] [2020-10-23 17:42:38,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:38,885 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:38,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:38,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:38,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:38,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:38,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:38,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 17:42:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:38,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:38,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:38,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:42:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:39,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 17:42:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:39,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-23 17:42:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:39,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:42:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:39,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-23 17:42:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:39,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-23 17:42:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:39,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:39,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 17:42:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:39,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-23 17:42:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:39,064 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-23 17:42:39,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539495160] [2020-10-23 17:42:39,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296183699] [2020-10-23 17:42:39,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:42:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:39,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-23 17:42:39,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 17:42:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 17:42:39,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 17:42:39,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2020-10-23 17:42:39,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897940302] [2020-10-23 17:42:39,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 17:42:39,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:39,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 17:42:39,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-23 17:42:39,403 INFO L87 Difference]: Start difference. First operand 599 states and 739 transitions. Second operand 5 states. [2020-10-23 17:42:39,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:42:39,547 INFO L93 Difference]: Finished difference Result 1055 states and 1329 transitions. [2020-10-23 17:42:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 17:42:39,548 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-10-23 17:42:39,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:42:39,551 INFO L225 Difference]: With dead ends: 1055 [2020-10-23 17:42:39,552 INFO L226 Difference]: Without dead ends: 480 [2020-10-23 17:42:39,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-23 17:42:39,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-10-23 17:42:39,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2020-10-23 17:42:39,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2020-10-23 17:42:39,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 582 transitions. [2020-10-23 17:42:39,689 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 582 transitions. Word has length 110 [2020-10-23 17:42:39,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:42:39,689 INFO L481 AbstractCegarLoop]: Abstraction has 480 states and 582 transitions. [2020-10-23 17:42:39,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 17:42:39,689 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 582 transitions. [2020-10-23 17:42:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-23 17:42:39,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:39,691 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 17:42:39,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:42:39,906 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:42:39,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:39,907 INFO L82 PathProgramCache]: Analyzing trace with hash -2083907215, now seen corresponding path program 1 times [2020-10-23 17:42:39,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:39,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69023420] [2020-10-23 17:42:39,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,299 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:40,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 17:42:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-23 17:42:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:42:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 17:42:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-23 17:42:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:42:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-23 17:42:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 17:42:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:42:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-23 17:42:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 17:42:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,481 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-23 17:42:40,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69023420] [2020-10-23 17:42:40,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792190509] [2020-10-23 17:42:40,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:42:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:40,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-23 17:42:40,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 17:42:40,785 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:42:40,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 17:42:40,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 17 [2020-10-23 17:42:40,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280557517] [2020-10-23 17:42:40,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-23 17:42:40,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:40,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-23 17:42:40,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-10-23 17:42:40,788 INFO L87 Difference]: Start difference. First operand 480 states and 582 transitions. Second operand 17 states. [2020-10-23 17:42:41,357 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:42:42,052 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:42:43,169 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 206 [2020-10-23 17:42:43,495 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:43,782 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:44,338 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-23 17:42:44,651 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 17:42:44,957 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 17:42:45,784 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:42:46,057 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:46,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:42:46,938 INFO L93 Difference]: Finished difference Result 977 states and 1252 transitions. [2020-10-23 17:42:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-23 17:42:46,939 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 114 [2020-10-23 17:42:46,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:42:46,943 INFO L225 Difference]: With dead ends: 977 [2020-10-23 17:42:46,943 INFO L226 Difference]: Without dead ends: 571 [2020-10-23 17:42:46,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 151 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=345, Invalid=987, Unknown=0, NotChecked=0, Total=1332 [2020-10-23 17:42:46,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-10-23 17:42:47,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 468. [2020-10-23 17:42:47,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-10-23 17:42:47,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 566 transitions. [2020-10-23 17:42:47,076 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 566 transitions. Word has length 114 [2020-10-23 17:42:47,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:42:47,076 INFO L481 AbstractCegarLoop]: Abstraction has 468 states and 566 transitions. [2020-10-23 17:42:47,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-23 17:42:47,077 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 566 transitions. [2020-10-23 17:42:47,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 17:42:47,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:47,079 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 17:42:47,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:42:47,293 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:42:47,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:47,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1894803177, now seen corresponding path program 2 times [2020-10-23 17:42:47,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:47,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220158574] [2020-10-23 17:42:47,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:42:47,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:42:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:42:47,489 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:42:47,672 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 17:42:47,673 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 17:42:47,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 17:42:47,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 05:42:47 BoogieIcfgContainer [2020-10-23 17:42:47,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 17:42:47,874 INFO L168 Benchmark]: Toolchain (without parser) took 32131.92 ms. Allocated memory was 151.0 MB in the beginning and 506.5 MB in the end (delta: 355.5 MB). Free memory was 125.0 MB in the beginning and 318.9 MB in the end (delta: -193.9 MB). Peak memory consumption was 163.3 MB. Max. memory is 8.0 GB. [2020-10-23 17:42:47,875 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 123.1 MB in the end (delta: 96.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 17:42:47,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.97 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 104.2 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 17:42:47,876 INFO L168 Benchmark]: Boogie Preprocessor took 88.95 ms. Allocated memory is still 151.0 MB. Free memory was 104.2 MB in the beginning and 100.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 17:42:47,876 INFO L168 Benchmark]: RCFGBuilder took 1419.29 ms. Allocated memory is still 151.0 MB. Free memory was 100.2 MB in the beginning and 50.0 MB in the end (delta: 50.2 MB). Peak memory consumption was 51.5 MB. Max. memory is 8.0 GB. [2020-10-23 17:42:47,877 INFO L168 Benchmark]: TraceAbstraction took 29927.83 ms. Allocated memory was 151.0 MB in the beginning and 506.5 MB in the end (delta: 355.5 MB). Free memory was 49.5 MB in the beginning and 318.9 MB in the end (delta: -269.4 MB). Peak memory consumption was 86.5 MB. Max. memory is 8.0 GB. [2020-10-23 17:42:47,880 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 123.1 MB in the end (delta: 96.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 681.97 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 104.2 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 88.95 ms. Allocated memory is still 151.0 MB. Free memory was 104.2 MB in the beginning and 100.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1419.29 ms. Allocated memory is still 151.0 MB. Free memory was 100.2 MB in the beginning and 50.0 MB in the end (delta: 50.2 MB). Peak memory consumption was 51.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29927.83 ms. Allocated memory was 151.0 MB in the beginning and 506.5 MB in the end (delta: 355.5 MB). Free memory was 49.5 MB in the beginning and 318.9 MB in the end (delta: -269.4 MB). Peak memory consumption was 86.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L617] int waterLevel = 1; [L618] int methaneLevelCritical = 0; [L714] int pumpRunning = 0; [L715] int systemActive = 1; VAL [\old(cleanupTimeShifts)=178, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L489] int retValue_acc ; [L490] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L494] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L495] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L496] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L496] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L500] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L501] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L480] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L557] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L559] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L565] tmp = __VERIFIER_nondet_int() [L567] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L569] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L635] COND TRUE waterLevel < 2 [L636] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L600] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L722] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L729] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L731] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L848] int retValue_acc ; [L849] int tmp ; [L850] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L854] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L697] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L700] COND FALSE !(waterLevel < 2) [L704] retValue_acc = 0 [L705] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L854] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L854] tmp = isHighWaterSensorDry() [L856] COND FALSE !(\read(tmp)) [L859] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L861] retValue_acc = tmp___0 [L862] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L756] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] tmp = isHighWaterLevel() [L758] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L760] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L779] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L760] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L731] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L737] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L877] int tmp ; [L878] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L882] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L688] int retValue_acc ; [L691] retValue_acc = waterLevel [L692] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L882] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L882] tmp = getWaterLevel() [L884] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L737] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L600] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L557] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L559] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L565] tmp = __VERIFIER_nondet_int() [L567] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L600] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L722] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L724] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L623] COND TRUE waterLevel > 0 [L624] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L724] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L729] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L731] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L751] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L754] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L769] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L731] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L737] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L877] int tmp ; [L878] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L882] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L688] int retValue_acc ; [L691] retValue_acc = waterLevel [L692] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L882] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L882] tmp = getWaterLevel() [L884] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L737] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L600] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L557] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L559] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L565] tmp = __VERIFIER_nondet_int() [L567] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L600] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L722] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L724] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] COND TRUE waterLevel > 0 [L624] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L724] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L729] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L731] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L751] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L754] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L769] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L731] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L737] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L877] int tmp ; [L878] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L882] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L688] int retValue_acc ; [L691] retValue_acc = waterLevel [L692] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L882] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L882] tmp = getWaterLevel() [L884] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L886] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L803] int retValue_acc ; [L806] retValue_acc = pumpRunning [L807] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L886] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L886] tmp___0 = isPumpRunning() [L888] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L890] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L871] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product33.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 227 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.6s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 21.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1003 SDtfs, 2060 SDslu, 1664 SDs, 0 SdLazy, 4296 SolverSat, 1374 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 809 GetRequests, 679 SyntacticMatches, 5 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 12.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=599occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 355 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 1334 NumberOfCodeBlocks, 1334 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1172 ConstructedInterpolants, 0 QuantifiedInterpolants, 330450 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3324 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 180/200 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...