/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_spec2_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:01:07,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:01:07,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:01:07,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:01:07,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:01:07,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:01:07,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:01:07,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:01:07,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:01:07,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:01:07,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:01:07,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:01:07,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:01:07,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:01:07,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:01:07,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:01:07,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:01:07,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:01:07,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:01:07,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:01:07,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:01:07,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:01:07,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:01:07,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:01:07,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:01:07,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:01:07,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:01:07,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:01:07,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:01:07,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:01:07,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:01:07,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:01:07,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:01:07,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:01:07,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:01:07,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:01:07,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:01:07,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:01:07,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:01:07,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:01:07,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:01:07,760 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 [2021-02-19 17:01:07,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:01:07,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:01:07,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:01:07,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:01:07,792 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:01:07,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:01:07,793 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:01:07,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:01:07,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:01:07,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:01:07,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:01:07,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:01:07,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:01:07,794 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:01:07,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:01:07,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:01:07,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:01:07,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:01:07,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:01:07,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:01:07,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:01:07,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:01:07,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:01:07,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:01:07,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:01:07,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:01:07,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:01:07,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:01:07,798 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:01:08,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:01:08,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:01:08,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:01:08,269 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:01:08,272 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:01:08,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2021-02-19 17:01:08,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81426443e/04e43ce7294c497a9f301d5a8428e23f/FLAG7ae21c4a4 [2021-02-19 17:01:08,988 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:01:08,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2021-02-19 17:01:09,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81426443e/04e43ce7294c497a9f301d5a8428e23f/FLAG7ae21c4a4 [2021-02-19 17:01:09,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81426443e/04e43ce7294c497a9f301d5a8428e23f [2021-02-19 17:01:09,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:01:09,298 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:01:09,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:01:09,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:01:09,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:01:09,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:01:09" (1/1) ... [2021-02-19 17:01:09,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a28ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:01:09, skipping insertion in model container [2021-02-19 17:01:09,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:01:09" (1/1) ... [2021-02-19 17:01:09,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:01:09,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:01:09,754 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c[17352,17365] [2021-02-19 17:01:09,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:01:09,776 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:01:09,889 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c[17352,17365] [2021-02-19 17:01:09,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:01:09,929 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:01:09,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:01:09 WrapperNode [2021-02-19 17:01:09,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:01:09,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:01:09,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:01:09,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:01:09,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:01:09" (1/1) ... [2021-02-19 17:01:09,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:01:09" (1/1) ... [2021-02-19 17:01:09,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:01:09" (1/1) ... [2021-02-19 17:01:09,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:01:09" (1/1) ... [2021-02-19 17:01:10,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:01:09" (1/1) ... [2021-02-19 17:01:10,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:01:09" (1/1) ... [2021-02-19 17:01:10,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:01:09" (1/1) ... [2021-02-19 17:01:10,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:01:10,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:01:10,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:01:10,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:01:10,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:01:09" (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 [2021-02-19 17:01:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:01:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:01:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-19 17:01:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:01:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-19 17:01:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-19 17:01:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-19 17:01:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-19 17:01:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-19 17:01:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-19 17:01:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-19 17:01:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-19 17:01:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-19 17:01:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-19 17:01:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-19 17:01:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-19 17:01:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-19 17:01:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-19 17:01:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-19 17:01:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-19 17:01:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-19 17:01:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-19 17:01:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-19 17:01:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-19 17:01:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-19 17:01:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:01:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-19 17:01:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-19 17:01:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-19 17:01:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-19 17:01:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-19 17:01:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-19 17:01:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-19 17:01:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-19 17:01:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-19 17:01:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-19 17:01:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-19 17:01:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-19 17:01:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-19 17:01:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2021-02-19 17:01:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2021-02-19 17:01:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:01:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:01:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:01:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:01:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:01:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-19 17:01:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-19 17:01:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-19 17:01:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-19 17:01:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-19 17:01:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-19 17:01:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-19 17:01:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-19 17:01:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 17:01:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 17:01:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-19 17:01:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 17:01:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 17:01:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:01:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 17:01:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-19 17:01:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:01:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-19 17:01:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-19 17:01:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:01:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-19 17:01:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-19 17:01:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-19 17:01:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-19 17:01:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-19 17:01:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-19 17:01:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-19 17:01:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-19 17:01:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-19 17:01:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-19 17:01:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-19 17:01:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-19 17:01:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2021-02-19 17:01:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-19 17:01:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-19 17:01:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:01:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-19 17:01:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-19 17:01:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-19 17:01:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-19 17:01:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-19 17:01:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2021-02-19 17:01:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-19 17:01:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-19 17:01:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-19 17:01:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-19 17:01:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-19 17:01:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:01:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:01:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:01:11,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:01:11,450 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 17:01:11,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:01:11 BoogieIcfgContainer [2021-02-19 17:01:11,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:01:11,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:01:11,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:01:11,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:01:11,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:01:09" (1/3) ... [2021-02-19 17:01:11,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b661e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:01:11, skipping insertion in model container [2021-02-19 17:01:11,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:01:09" (2/3) ... [2021-02-19 17:01:11,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b661e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:01:11, skipping insertion in model container [2021-02-19 17:01:11,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:01:11" (3/3) ... [2021-02-19 17:01:11,463 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2021-02-19 17:01:11,471 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:01:11,476 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:01:11,519 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:01:11,550 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:01:11,550 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:01:11,550 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:01:11,550 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:01:11,551 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:01:11,551 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:01:11,551 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:01:11,551 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:01:11,575 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2021-02-19 17:01:11,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-19 17:01:11,588 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:01:11,590 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] [2021-02-19 17:01:11,590 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:01:11,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:01:11,597 INFO L82 PathProgramCache]: Analyzing trace with hash 509317743, now seen corresponding path program 1 times [2021-02-19 17:01:11,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:01:11,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001943070] [2021-02-19 17:01:11,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:01:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:12,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:12,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:12,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:12,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:12,295 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:01:12,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:01:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:12,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:12,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:12,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:01:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:12,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:12,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:12,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:01:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:12,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:12,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:12,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:01:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:12,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:12,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:12,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:01:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:12,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:12,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:12,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-19 17:01:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:12,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:12,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:12,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-19 17:01:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:12,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:12,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:12,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-02-19 17:01:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:12,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:12,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:01:12,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001943070] [2021-02-19 17:01:12,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:01:12,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:01:12,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395439388] [2021-02-19 17:01:12,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:01:12,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:01:12,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:01:12,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:01:12,458 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2021-02-19 17:01:13,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:01:13,685 INFO L93 Difference]: Finished difference Result 279 states and 365 transitions. [2021-02-19 17:01:13,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 17:01:13,687 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2021-02-19 17:01:13,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:01:13,702 INFO L225 Difference]: With dead ends: 279 [2021-02-19 17:01:13,702 INFO L226 Difference]: Without dead ends: 157 [2021-02-19 17:01:13,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:01:13,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-02-19 17:01:13,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 123. [2021-02-19 17:01:13,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2021-02-19 17:01:13,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2021-02-19 17:01:13,824 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 51 [2021-02-19 17:01:13,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:01:13,825 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2021-02-19 17:01:13,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:01:13,825 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2021-02-19 17:01:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-19 17:01:13,829 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:01:13,829 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] [2021-02-19 17:01:13,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:01:13,829 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:01:13,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:01:13,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1805705860, now seen corresponding path program 1 times [2021-02-19 17:01:13,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:01:13,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571471382] [2021-02-19 17:01:13,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:01:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:13,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:13,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:13,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:13,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:13,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:13,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:14,305 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:01:14,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:01:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:14,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:14,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:14,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:01:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:14,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:14,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:14,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:01:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:14,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:14,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:14,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:01:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:14,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:14,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:14,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:01:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:14,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:14,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:14,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-19 17:01:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:14,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:14,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:14,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 17:01:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:14,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:14,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:14,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:01:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:14,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:14,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:14,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:01:14,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571471382] [2021-02-19 17:01:14,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:01:14,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 17:01:14,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262980943] [2021-02-19 17:01:14,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 17:01:14,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:01:14,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 17:01:14,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:01:14,433 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 5 states. [2021-02-19 17:01:15,064 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-19 17:01:16,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:01:16,084 INFO L93 Difference]: Finished difference Result 211 states and 262 transitions. [2021-02-19 17:01:16,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 17:01:16,085 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2021-02-19 17:01:16,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:01:16,087 INFO L225 Difference]: With dead ends: 211 [2021-02-19 17:01:16,088 INFO L226 Difference]: Without dead ends: 147 [2021-02-19 17:01:16,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-19 17:01:16,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-02-19 17:01:16,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 114. [2021-02-19 17:01:16,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2021-02-19 17:01:16,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 131 transitions. [2021-02-19 17:01:16,139 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 131 transitions. Word has length 52 [2021-02-19 17:01:16,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:01:16,140 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 131 transitions. [2021-02-19 17:01:16,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 17:01:16,140 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 131 transitions. [2021-02-19 17:01:16,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-19 17:01:16,142 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:01:16,143 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] [2021-02-19 17:01:16,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:01:16,143 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:01:16,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:01:16,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1299393341, now seen corresponding path program 1 times [2021-02-19 17:01:16,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:01:16,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458219883] [2021-02-19 17:01:16,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:01:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:16,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:16,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:16,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:16,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:16,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:01:16,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:01:16,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:01:16,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:16,554 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:01:16,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:01:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:16,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:01:16,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:01:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:16,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:16,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:01:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:16,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:16,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:01:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:16,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:16,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:01:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:16,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:16,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-19 17:01:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:16,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:16,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-02-19 17:01:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:16,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:16,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-02-19 17:01:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:16,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:16,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:01:16,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458219883] [2021-02-19 17:01:16,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:01:16,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-19 17:01:16,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685505989] [2021-02-19 17:01:16,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 17:01:16,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:01:16,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 17:01:16,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-19 17:01:16,675 INFO L87 Difference]: Start difference. First operand 114 states and 131 transitions. Second operand 9 states. [2021-02-19 17:01:17,202 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-19 17:01:17,666 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-19 17:01:18,039 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-19 17:01:18,445 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-19 17:01:19,419 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-19 17:01:21,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:01:21,325 INFO L93 Difference]: Finished difference Result 390 states and 490 transitions. [2021-02-19 17:01:21,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 17:01:21,326 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2021-02-19 17:01:21,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:01:21,330 INFO L225 Difference]: With dead ends: 390 [2021-02-19 17:01:21,331 INFO L226 Difference]: Without dead ends: 304 [2021-02-19 17:01:21,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2021-02-19 17:01:21,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-02-19 17:01:21,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 227. [2021-02-19 17:01:21,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2021-02-19 17:01:21,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 272 transitions. [2021-02-19 17:01:21,424 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 272 transitions. Word has length 57 [2021-02-19 17:01:21,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:01:21,425 INFO L480 AbstractCegarLoop]: Abstraction has 227 states and 272 transitions. [2021-02-19 17:01:21,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-19 17:01:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 272 transitions. [2021-02-19 17:01:21,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-19 17:01:21,427 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:01:21,427 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] [2021-02-19 17:01:21,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:01:21,428 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:01:21,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:01:21,428 INFO L82 PathProgramCache]: Analyzing trace with hash -340157654, now seen corresponding path program 1 times [2021-02-19 17:01:21,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:01:21,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293849314] [2021-02-19 17:01:21,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:01:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:21,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:21,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:21,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:21,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:21,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:21,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:21,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:21,852 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:01:21,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:01:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:21,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:21,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:01:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:21,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:21,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:01:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:21,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:21,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:01:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:21,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:21,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:01:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:21,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:21,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-19 17:01:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:21,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:21,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 17:01:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:21,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:21,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-19 17:01:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:21,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:21,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-19 17:01:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:21,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:21,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:21,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:01:21,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293849314] [2021-02-19 17:01:21,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:01:21,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-19 17:01:21,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725621542] [2021-02-19 17:01:21,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 17:01:21,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:01:21,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 17:01:21,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-19 17:01:21,978 INFO L87 Difference]: Start difference. First operand 227 states and 272 transitions. Second operand 9 states. [2021-02-19 17:01:22,521 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-19 17:01:23,939 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-19 17:01:24,394 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-19 17:01:24,802 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-19 17:01:25,166 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-19 17:01:26,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:01:26,490 INFO L93 Difference]: Finished difference Result 730 states and 972 transitions. [2021-02-19 17:01:26,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 17:01:26,491 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2021-02-19 17:01:26,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:01:26,496 INFO L225 Difference]: With dead ends: 730 [2021-02-19 17:01:26,497 INFO L226 Difference]: Without dead ends: 531 [2021-02-19 17:01:26,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2021-02-19 17:01:26,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-02-19 17:01:26,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 402. [2021-02-19 17:01:26,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2021-02-19 17:01:26,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 484 transitions. [2021-02-19 17:01:26,637 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 484 transitions. Word has length 62 [2021-02-19 17:01:26,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:01:26,638 INFO L480 AbstractCegarLoop]: Abstraction has 402 states and 484 transitions. [2021-02-19 17:01:26,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-19 17:01:26,638 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 484 transitions. [2021-02-19 17:01:26,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-02-19 17:01:26,641 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:01:26,641 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] [2021-02-19 17:01:26,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:01:26,641 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:01:26,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:01:26,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1860807302, now seen corresponding path program 1 times [2021-02-19 17:01:26,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:01:26,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378601932] [2021-02-19 17:01:26,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:01:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:26,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:26,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:26,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:26,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:26,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:26,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:26,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:26,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:26,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:26,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:26,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:26,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:26,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:26,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:26,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:26,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:26,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:26,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:27,081 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:01:27,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:01:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:27,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:27,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:27,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:01:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:27,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:27,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:27,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:01:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:27,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:27,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:27,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:01:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:27,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:27,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:27,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:01:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:27,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:27,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:27,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-19 17:01:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:27,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:27,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:27,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-19 17:01:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:27,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:27,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:27,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-19 17:01:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:27,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:27,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:27,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-19 17:01:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:27,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:27,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:27,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-02-19 17:01:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:27,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:27,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:01:27,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378601932] [2021-02-19 17:01:27,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:01:27,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 17:01:27,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913789113] [2021-02-19 17:01:27,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 17:01:27,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:01:27,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 17:01:27,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-02-19 17:01:27,230 INFO L87 Difference]: Start difference. First operand 402 states and 484 transitions. Second operand 10 states. [2021-02-19 17:01:27,896 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-19 17:01:29,236 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-19 17:01:29,714 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-19 17:01:30,133 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-19 17:01:30,879 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-19 17:01:32,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:01:32,252 INFO L93 Difference]: Finished difference Result 1162 states and 1576 transitions. [2021-02-19 17:01:32,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-19 17:01:32,253 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2021-02-19 17:01:32,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:01:32,260 INFO L225 Difference]: With dead ends: 1162 [2021-02-19 17:01:32,260 INFO L226 Difference]: Without dead ends: 788 [2021-02-19 17:01:32,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2021-02-19 17:01:32,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2021-02-19 17:01:32,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 593. [2021-02-19 17:01:32,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2021-02-19 17:01:32,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 715 transitions. [2021-02-19 17:01:32,466 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 715 transitions. Word has length 66 [2021-02-19 17:01:32,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:01:32,468 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 715 transitions. [2021-02-19 17:01:32,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 17:01:32,469 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 715 transitions. [2021-02-19 17:01:32,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-02-19 17:01:32,472 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:01:32,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:01:32,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 17:01:32,473 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:01:32,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:01:32,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1918469490, now seen corresponding path program 1 times [2021-02-19 17:01:32,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:01:32,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531643738] [2021-02-19 17:01:32,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:01:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:32,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:32,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:32,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:32,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:32,932 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:01:32,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:01:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:32,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:32,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:32,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:01:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:32,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:32,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:32,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:01:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:32,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:32,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:32,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:01:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:32,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:32,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:32,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:01:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:32,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:32,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:32,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-19 17:01:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:32,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:32,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:32,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-19 17:01:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:32,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:32,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:32,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:01:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:33,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:33,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:33,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:33,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:33,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:33,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:33,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:33,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:33,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 17:01:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:33,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:33,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:33,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:33,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:01:33,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:33,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:01:33,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 17:01:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:33,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:33,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:33,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-19 17:01:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:33,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:33,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:33,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-19 17:01:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:33,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:33,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:33,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-02-19 17:01:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:33,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:33,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:33,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:01:33,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531643738] [2021-02-19 17:01:33,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:01:33,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 17:01:33,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853200459] [2021-02-19 17:01:33,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 17:01:33,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:01:33,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 17:01:33,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-02-19 17:01:33,117 INFO L87 Difference]: Start difference. First operand 593 states and 715 transitions. Second operand 10 states. [2021-02-19 17:01:34,482 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-19 17:01:34,868 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-19 17:01:35,274 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-19 17:01:35,653 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-19 17:01:36,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:01:36,805 INFO L93 Difference]: Finished difference Result 1437 states and 1923 transitions. [2021-02-19 17:01:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 17:01:36,810 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2021-02-19 17:01:36,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:01:36,817 INFO L225 Difference]: With dead ends: 1437 [2021-02-19 17:01:36,818 INFO L226 Difference]: Without dead ends: 872 [2021-02-19 17:01:36,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-02-19 17:01:36,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2021-02-19 17:01:36,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 619. [2021-02-19 17:01:36,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2021-02-19 17:01:36,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 741 transitions. [2021-02-19 17:01:36,983 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 741 transitions. Word has length 84 [2021-02-19 17:01:36,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:01:36,983 INFO L480 AbstractCegarLoop]: Abstraction has 619 states and 741 transitions. [2021-02-19 17:01:36,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 17:01:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 741 transitions. [2021-02-19 17:01:36,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-02-19 17:01:36,986 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:01:36,986 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:01:36,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-19 17:01:36,986 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:01:36,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:01:36,987 INFO L82 PathProgramCache]: Analyzing trace with hash -990294412, now seen corresponding path program 1 times [2021-02-19 17:01:36,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:01:36,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046944839] [2021-02-19 17:01:36,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:01:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:37,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:37,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,408 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:01:37,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:01:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:01:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:01:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:01:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:37,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:01:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-19 17:01:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-19 17:01:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:01:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 17:01:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:37,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:37,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 17:01:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:37,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-19 17:01:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-19 17:01:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-02-19 17:01:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:37,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:37,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:37,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:01:37,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046944839] [2021-02-19 17:01:37,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:01:37,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-19 17:01:37,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311476778] [2021-02-19 17:01:37,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-19 17:01:37,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:01:37,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-19 17:01:37,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-02-19 17:01:37,588 INFO L87 Difference]: Start difference. First operand 619 states and 741 transitions. Second operand 12 states. [2021-02-19 17:01:38,347 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-19 17:01:38,742 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-19 17:01:39,165 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-19 17:01:40,145 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-19 17:01:40,531 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-19 17:01:40,927 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-19 17:01:42,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:01:42,476 INFO L93 Difference]: Finished difference Result 1491 states and 2022 transitions. [2021-02-19 17:01:42,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 17:01:42,476 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 84 [2021-02-19 17:01:42,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:01:42,484 INFO L225 Difference]: With dead ends: 1491 [2021-02-19 17:01:42,485 INFO L226 Difference]: Without dead ends: 900 [2021-02-19 17:01:42,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2021-02-19 17:01:42,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2021-02-19 17:01:42,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 635. [2021-02-19 17:01:42,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2021-02-19 17:01:42,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 757 transitions. [2021-02-19 17:01:42,652 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 757 transitions. Word has length 84 [2021-02-19 17:01:42,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:01:42,653 INFO L480 AbstractCegarLoop]: Abstraction has 635 states and 757 transitions. [2021-02-19 17:01:42,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-19 17:01:42,653 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 757 transitions. [2021-02-19 17:01:42,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-02-19 17:01:42,656 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:01:42,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:01:42,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-19 17:01:42,657 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:01:42,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:01:42,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1120995957, now seen corresponding path program 1 times [2021-02-19 17:01:42,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:01:42,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670392078] [2021-02-19 17:01:42,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:01:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:42,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:42,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:42,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:42,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:42,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:42,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:42,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:42,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:42,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:42,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:01:42,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:42,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,103 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:01:43,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:01:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:01:43,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:01:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:01:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:01:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:01:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-19 17:01:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-19 17:01:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:01:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:43,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 17:01:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:01:43,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 17:01:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:01:43,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-19 17:01:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-19 17:01:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-02-19 17:01:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:43,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:43,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:43,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:01:43,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670392078] [2021-02-19 17:01:43,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:01:43,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:01:43,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016824379] [2021-02-19 17:01:43,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:01:43,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:01:43,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:01:43,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:01:43,327 INFO L87 Difference]: Start difference. First operand 635 states and 757 transitions. Second operand 8 states. [2021-02-19 17:01:43,910 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-19 17:01:44,686 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-19 17:01:47,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:01:47,877 INFO L93 Difference]: Finished difference Result 2369 states and 3235 transitions. [2021-02-19 17:01:47,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 17:01:47,878 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2021-02-19 17:01:47,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:01:47,891 INFO L225 Difference]: With dead ends: 2369 [2021-02-19 17:01:47,891 INFO L226 Difference]: Without dead ends: 1762 [2021-02-19 17:01:47,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2021-02-19 17:01:47,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2021-02-19 17:01:48,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1419. [2021-02-19 17:01:48,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1419 states. [2021-02-19 17:01:48,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 1715 transitions. [2021-02-19 17:01:48,265 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 1715 transitions. Word has length 84 [2021-02-19 17:01:48,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:01:48,266 INFO L480 AbstractCegarLoop]: Abstraction has 1419 states and 1715 transitions. [2021-02-19 17:01:48,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:01:48,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 1715 transitions. [2021-02-19 17:01:48,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-02-19 17:01:48,269 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:01:48,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:01:48,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-19 17:01:48,269 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:01:48,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:01:48,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1739132145, now seen corresponding path program 1 times [2021-02-19 17:01:48,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:01:48,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832223581] [2021-02-19 17:01:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:01:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:48,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:48,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:48,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:48,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,743 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:01:48,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:01:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:01:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:01:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:01:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:01:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-19 17:01:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:01:48,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 17:01:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 17:01:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-02-19 17:01:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 17:01:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 17:01:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-19 17:01:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 17:01:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-19 17:01:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:01:48,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:01:48,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:01:48,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:01:48,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832223581] [2021-02-19 17:01:48,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:01:48,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:01:48,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317026419] [2021-02-19 17:01:48,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:01:48,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:01:48,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:01:48,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:01:48,880 INFO L87 Difference]: Start difference. First operand 1419 states and 1715 transitions. Second operand 8 states. [2021-02-19 17:01:49,481 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-19 17:01:52,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:01:52,816 INFO L93 Difference]: Finished difference Result 2888 states and 3961 transitions. [2021-02-19 17:01:52,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 17:01:52,816 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2021-02-19 17:01:52,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:01:52,837 INFO L225 Difference]: With dead ends: 2888 [2021-02-19 17:01:52,837 INFO L226 Difference]: Without dead ends: 2885 [2021-02-19 17:01:52,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2021-02-19 17:01:52,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2021-02-19 17:01:53,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2312. [2021-02-19 17:01:53,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2312 states. [2021-02-19 17:01:53,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 2865 transitions. [2021-02-19 17:01:53,393 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 2865 transitions. Word has length 88 [2021-02-19 17:01:53,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:01:53,395 INFO L480 AbstractCegarLoop]: Abstraction has 2312 states and 2865 transitions. [2021-02-19 17:01:53,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:01:53,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 2865 transitions. [2021-02-19 17:01:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-02-19 17:01:53,403 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:01:53,404 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:01:53,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-19 17:01:53,404 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:01:53,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:01:53,405 INFO L82 PathProgramCache]: Analyzing trace with hash 771956492, now seen corresponding path program 1 times [2021-02-19 17:01:53,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:01:53,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501507524] [2021-02-19 17:01:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:01:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:01:53,498 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:01:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:01:53,575 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:01:53,762 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:01:53,762 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:01:53,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-19 17:01:54,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:01:54 BoogieIcfgContainer [2021-02-19 17:01:54,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:01:54,032 INFO L168 Benchmark]: Toolchain (without parser) took 44748.02 ms. Allocated memory was 163.6 MB in the beginning and 594.5 MB in the end (delta: 431.0 MB). Free memory was 137.7 MB in the beginning and 246.5 MB in the end (delta: -108.8 MB). Peak memory consumption was 322.6 MB. Max. memory is 8.0 GB. [2021-02-19 17:01:54,035 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 163.6 MB. Free memory was 136.2 MB in the beginning and 136.1 MB in the end (delta: 101.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:01:54,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.68 ms. Allocated memory is still 163.6 MB. Free memory was 136.6 MB in the beginning and 115.7 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:01:54,041 INFO L168 Benchmark]: Boogie Preprocessor took 165.83 ms. Allocated memory is still 163.6 MB. Free memory was 115.7 MB in the beginning and 144.0 MB in the end (delta: -28.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-19 17:01:54,041 INFO L168 Benchmark]: RCFGBuilder took 1352.59 ms. Allocated memory is still 163.6 MB. Free memory was 144.0 MB in the beginning and 56.5 MB in the end (delta: 87.6 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:01:54,042 INFO L168 Benchmark]: TraceAbstraction took 42574.87 ms. Allocated memory was 163.6 MB in the beginning and 594.5 MB in the end (delta: 431.0 MB). Free memory was 56.0 MB in the beginning and 246.5 MB in the end (delta: -190.5 MB). Peak memory consumption was 241.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:01:54,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 163.6 MB. Free memory was 136.2 MB in the beginning and 136.1 MB in the end (delta: 101.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 627.68 ms. Allocated memory is still 163.6 MB. Free memory was 136.6 MB in the beginning and 115.7 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 165.83 ms. Allocated memory is still 163.6 MB. Free memory was 115.7 MB in the beginning and 144.0 MB in the end (delta: -28.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1352.59 ms. Allocated memory is still 163.6 MB. Free memory was 144.0 MB in the beginning and 56.5 MB in the end (delta: 87.6 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 42574.87 ms. Allocated memory was 163.6 MB in the beginning and 594.5 MB in the end (delta: 431.0 MB). Free memory was 56.0 MB in the beginning and 246.5 MB in the end (delta: -190.5 MB). Peak memory consumption was 241.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 902]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L312] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L547] int cleanupTimeShifts = 4; [L653] int pumpRunning = 0; [L654] int systemActive = 1; [L907] int methAndRunningLastTime ; VAL [\old(cleanupTimeShifts)=181, \old(head)=183, \old(head)=169, \old(methAndRunningLastTime)=175, \old(methaneLevelCritical)=147, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L625] int retValue_acc ; [L626] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L630] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L631] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L632] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L632] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L632] tmp = valid_product() [L634] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L636] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L637] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L618] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L912] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L618] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L619] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L830] int splverifierCounter ; [L831] int tmp ; [L832] int tmp___0 ; [L833] int tmp___1 ; [L834] int tmp___2 ; [L837] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L839] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L841] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L847] tmp = __VERIFIER_nondet_int() [L849] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L851] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L851] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L857] tmp___0 = __VERIFIER_nondet_int() [L859] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L861] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L861] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L867] tmp___2 = __VERIFIER_nondet_int() [L869] COND FALSE !(\read(tmp___2)) [L875] tmp___1 = __VERIFIER_nondet_int() [L877] COND FALSE !(\read(tmp___1)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L886] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L661] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L668] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L670] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L690] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L693] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L695] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L787] int retValue_acc ; [L788] int tmp ; [L789] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L793] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L129] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L793] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L793] tmp = isHighWaterSensorDry() [L795] COND FALSE !(\read(tmp)) [L798] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L800] retValue_acc = tmp___0 [L801] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L695] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L695] tmp = isHighWaterLevel() [L697] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L699] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L718] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L699] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L670] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L676] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L917] int tmp ; [L918] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L922] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L922] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L922] tmp = isMethaneLevelCritical() [L924] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L926] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L742] int retValue_acc ; [L745] retValue_acc = pumpRunning [L746] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L926] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L926] tmp___0 = isPumpRunning() [L928] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L929] COND FALSE !(\read(methAndRunningLastTime)) [L934] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L676] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L886] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L839] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L841] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L847] tmp = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L857] tmp___0 = __VERIFIER_nondet_int() [L859] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L867] tmp___2 = __VERIFIER_nondet_int() [L869] COND FALSE !(\read(tmp___2)) [L875] tmp___1 = __VERIFIER_nondet_int() [L877] COND FALSE !(\read(tmp___1)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L886] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L661] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L663] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L663] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L668] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L670] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L690] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L693] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L708] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L670] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L676] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L917] int tmp ; [L918] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L922] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L922] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L922] tmp = isMethaneLevelCritical() [L924] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L926] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L742] int retValue_acc ; [L745] retValue_acc = pumpRunning [L746] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L926] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L926] tmp___0 = isPumpRunning() [L928] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L929] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L931] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L902] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 233 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 42.2s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 34.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 998 SDtfs, 2541 SDslu, 1336 SDs, 0 SdLazy, 6009 SolverSat, 1879 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 377 GetRequests, 225 SyntacticMatches, 3 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 14.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2312occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 1902 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 759 NumberOfCodeBlocks, 759 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 619 ConstructedInterpolants, 0 QuantifiedInterpolants, 203445 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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...