/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 23:45:44,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 23:45:44,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 23:45:44,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 23:45:44,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 23:45:44,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 23:45:44,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 23:45:44,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 23:45:44,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 23:45:44,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 23:45:44,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 23:45:44,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 23:45:44,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 23:45:44,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 23:45:44,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 23:45:44,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 23:45:44,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 23:45:44,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 23:45:44,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 23:45:44,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 23:45:44,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 23:45:44,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 23:45:44,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 23:45:44,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 23:45:44,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 23:45:44,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 23:45:44,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 23:45:44,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 23:45:44,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 23:45:44,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 23:45:44,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 23:45:44,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 23:45:44,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 23:45:44,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 23:45:44,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 23:45:44,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 23:45:44,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 23:45:44,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 23:45:44,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 23:45:44,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 23:45:44,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 23:45:44,545 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-06 23:45:44,567 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 23:45:44,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 23:45:44,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 23:45:44,572 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 23:45:44,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 23:45:44,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 23:45:44,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 23:45:44,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 23:45:44,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 23:45:44,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 23:45:44,574 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 23:45:44,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 23:45:44,575 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 23:45:44,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 23:45:44,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 23:45:44,576 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-06 23:45:44,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 23:45:44,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 23:45:44,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 23:45:44,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 23:45:44,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-06 23:45:44,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 23:45:44,577 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 23:45:45,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 23:45:45,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 23:45:45,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 23:45:45,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 23:45:45,047 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 23:45:45,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c [2020-11-06 23:45:45,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b8362b2/8db2769a9cb24f1e8c8b7a483d287b9f/FLAGec2f513aa [2020-11-06 23:45:45,750 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 23:45:45,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c [2020-11-06 23:45:45,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b8362b2/8db2769a9cb24f1e8c8b7a483d287b9f/FLAGec2f513aa [2020-11-06 23:45:46,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b8362b2/8db2769a9cb24f1e8c8b7a483d287b9f [2020-11-06 23:45:46,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 23:45:46,069 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 23:45:46,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 23:45:46,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 23:45:46,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 23:45:46,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:45:46" (1/1) ... [2020-11-06 23:45:46,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c69c85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:46, skipping insertion in model container [2020-11-06 23:45:46,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:45:46" (1/1) ... [2020-11-06 23:45:46,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 23:45:46,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 23:45:46,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:45:46,454 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 23:45:46,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:45:46,578 INFO L208 MainTranslator]: Completed translation [2020-11-06 23:45:46,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:46 WrapperNode [2020-11-06 23:45:46,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 23:45:46,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 23:45:46,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 23:45:46,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 23:45:46,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:46" (1/1) ... [2020-11-06 23:45:46,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:46" (1/1) ... [2020-11-06 23:45:46,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:46" (1/1) ... [2020-11-06 23:45:46,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:46" (1/1) ... [2020-11-06 23:45:46,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:46" (1/1) ... [2020-11-06 23:45:46,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:46" (1/1) ... [2020-11-06 23:45:46,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:46" (1/1) ... [2020-11-06 23:45:46,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 23:45:46,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 23:45:46,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 23:45:46,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 23:45:46,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 23:45:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 23:45:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 23:45:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-06 23:45:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 23:45:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-06 23:45:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-06 23:45:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-06 23:45:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-06 23:45:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-06 23:45:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-06 23:45:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-06 23:45:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-06 23:45:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-06 23:45:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-06 23:45:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-06 23:45:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-11-06 23:45:46,765 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-06 23:45:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-06 23:45:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-06 23:45:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-06 23:45:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-06 23:45:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-06 23:45:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-06 23:45:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-06 23:45:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-06 23:45:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-06 23:45:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-06 23:45:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-06 23:45:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-06 23:45:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-06 23:45:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-06 23:45:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-11-06 23:45:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-06 23:45:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-06 23:45:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-06 23:45:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-06 23:45:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-06 23:45:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-06 23:45:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-06 23:45:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-06 23:45:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 23:45:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 23:45:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 23:45:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 23:45:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 23:45:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 23:45:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-06 23:45:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-06 23:45:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 23:45:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 23:45:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-06 23:45:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 23:45:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 23:45:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 23:45:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 23:45:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-06 23:45:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 23:45:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-06 23:45:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-06 23:45:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 23:45:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-06 23:45:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-06 23:45:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-06 23:45:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-06 23:45:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-06 23:45:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-06 23:45:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-06 23:45:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-06 23:45:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-06 23:45:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-06 23:45:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-06 23:45:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-06 23:45:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-06 23:45:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-06 23:45:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-06 23:45:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-06 23:45:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-06 23:45:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-06 23:45:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-11-06 23:45:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-06 23:45:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-06 23:45:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-06 23:45:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-11-06 23:45:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-06 23:45:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-06 23:45:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-06 23:45:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-06 23:45:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-06 23:45:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-06 23:45:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-06 23:45:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-06 23:45:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-06 23:45:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 23:45:46,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 23:45:46,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 23:45:46,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 23:45:48,272 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 23:45:48,273 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-06 23:45:48,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:45:48 BoogieIcfgContainer [2020-11-06 23:45:48,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 23:45:48,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 23:45:48,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 23:45:48,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 23:45:48,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:45:46" (1/3) ... [2020-11-06 23:45:48,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7a3e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:45:48, skipping insertion in model container [2020-11-06 23:45:48,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:46" (2/3) ... [2020-11-06 23:45:48,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7a3e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:45:48, skipping insertion in model container [2020-11-06 23:45:48,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:45:48" (3/3) ... [2020-11-06 23:45:48,294 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2020-11-06 23:45:48,311 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-06 23:45:48,315 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-06 23:45:48,327 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-06 23:45:48,352 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 23:45:48,352 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 23:45:48,352 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-06 23:45:48,353 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 23:45:48,353 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 23:45:48,353 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 23:45:48,353 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 23:45:48,353 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 23:45:48,377 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states. [2020-11-06 23:45:48,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-06 23:45:48,395 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:45:48,397 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:45:48,397 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:45:48,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:45:48,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1396174370, now seen corresponding path program 1 times [2020-11-06 23:45:48,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:45:48,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228067985] [2020-11-06 23:45:48,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:45:48,499 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:45:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:49,237 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:45:49,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:45:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:49,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:45:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:49,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:45:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:49,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:45:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:49,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:45:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:49,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:45:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:49,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-06 23:45:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:49,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:45:49,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228067985] [2020-11-06 23:45:49,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:45:49,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 23:45:49,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995912756] [2020-11-06 23:45:49,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 23:45:49,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:45:49,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 23:45:49,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 23:45:49,436 INFO L87 Difference]: Start difference. First operand 317 states. Second operand 3 states. [2020-11-06 23:45:51,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:45:51,292 INFO L93 Difference]: Finished difference Result 494 states and 585 transitions. [2020-11-06 23:45:51,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 23:45:51,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-06 23:45:51,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:45:51,318 INFO L225 Difference]: With dead ends: 494 [2020-11-06 23:45:51,318 INFO L226 Difference]: Without dead ends: 307 [2020-11-06 23:45:51,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 23:45:51,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-11-06 23:45:51,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 263. [2020-11-06 23:45:51,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-06 23:45:51,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 284 transitions. [2020-11-06 23:45:51,502 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 284 transitions. Word has length 148 [2020-11-06 23:45:51,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:45:51,503 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 284 transitions. [2020-11-06 23:45:51,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 23:45:51,503 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 284 transitions. [2020-11-06 23:45:51,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-06 23:45:51,509 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:45:51,509 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:45:51,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 23:45:51,510 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:45:51,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:45:51,510 INFO L82 PathProgramCache]: Analyzing trace with hash -582277192, now seen corresponding path program 1 times [2020-11-06 23:45:51,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:45:51,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682336735] [2020-11-06 23:45:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:45:51,516 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:45:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:52,056 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:45:52,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:45:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:52,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:45:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:52,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:45:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:52,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:45:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:52,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:45:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:52,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-06 23:45:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:52,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-06 23:45:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:52,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:45:52,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682336735] [2020-11-06 23:45:52,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:45:52,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 23:45:52,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816816996] [2020-11-06 23:45:52,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 23:45:52,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:45:52,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 23:45:52,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 23:45:52,156 INFO L87 Difference]: Start difference. First operand 263 states and 284 transitions. Second operand 4 states. [2020-11-06 23:45:52,997 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:45:54,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:45:54,239 INFO L93 Difference]: Finished difference Result 395 states and 442 transitions. [2020-11-06 23:45:54,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 23:45:54,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-11-06 23:45:54,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:45:54,244 INFO L225 Difference]: With dead ends: 395 [2020-11-06 23:45:54,244 INFO L226 Difference]: Without dead ends: 290 [2020-11-06 23:45:54,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 23:45:54,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-11-06 23:45:54,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 253. [2020-11-06 23:45:54,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-11-06 23:45:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 271 transitions. [2020-11-06 23:45:54,344 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 271 transitions. Word has length 149 [2020-11-06 23:45:54,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:45:54,345 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 271 transitions. [2020-11-06 23:45:54,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 23:45:54,345 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 271 transitions. [2020-11-06 23:45:54,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-11-06 23:45:54,348 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:45:54,348 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:45:54,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 23:45:54,349 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:45:54,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:45:54,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1560958336, now seen corresponding path program 1 times [2020-11-06 23:45:54,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:45:54,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136340450] [2020-11-06 23:45:54,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:45:54,354 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:45:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,798 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:45:54,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:45:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:45:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:45:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:45:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:45:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-06 23:45:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-06 23:45:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-06 23:45:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:45:55,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136340450] [2020-11-06 23:45:55,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:45:55,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:45:55,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941530423] [2020-11-06 23:45:55,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:45:55,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:45:55,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:45:55,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:45:55,045 INFO L87 Difference]: Start difference. First operand 253 states and 271 transitions. Second operand 10 states. [2020-11-06 23:45:55,784 WARN L194 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:45:56,258 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:45:56,701 WARN L194 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:45:57,130 WARN L194 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:45:57,549 WARN L194 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:45:58,004 WARN L194 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:45:59,211 WARN L194 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:02,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:02,115 INFO L93 Difference]: Finished difference Result 685 states and 792 transitions. [2020-11-06 23:46:02,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 23:46:02,117 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-11-06 23:46:02,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:02,127 INFO L225 Difference]: With dead ends: 685 [2020-11-06 23:46:02,127 INFO L226 Difference]: Without dead ends: 547 [2020-11-06 23:46:02,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-06 23:46:02,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-11-06 23:46:02,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 438. [2020-11-06 23:46:02,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-11-06 23:46:02,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 484 transitions. [2020-11-06 23:46:02,416 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 484 transitions. Word has length 162 [2020-11-06 23:46:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:02,417 INFO L481 AbstractCegarLoop]: Abstraction has 438 states and 484 transitions. [2020-11-06 23:46:02,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:46:02,418 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 484 transitions. [2020-11-06 23:46:02,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-11-06 23:46:02,421 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:02,422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:02,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 23:46:02,422 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:46:02,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:02,423 INFO L82 PathProgramCache]: Analyzing trace with hash -859342012, now seen corresponding path program 1 times [2020-11-06 23:46:02,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:02,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360504049] [2020-11-06 23:46:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:02,427 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:02,890 WARN L194 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:02,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:02,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:02,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:02,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:02,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:02,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-06 23:46:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:03,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-06 23:46:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:03,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-06 23:46:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:03,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360504049] [2020-11-06 23:46:03,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:03,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-06 23:46:03,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419470820] [2020-11-06 23:46:03,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 23:46:03,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:03,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 23:46:03,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-06 23:46:03,082 INFO L87 Difference]: Start difference. First operand 438 states and 484 transitions. Second operand 9 states. [2020-11-06 23:46:03,777 WARN L194 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:05,515 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:05,915 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:06,384 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:06,791 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:07,181 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:07,580 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:07,975 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:08,605 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:10,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:10,234 INFO L93 Difference]: Finished difference Result 1201 states and 1425 transitions. [2020-11-06 23:46:10,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 23:46:10,235 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-11-06 23:46:10,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:10,242 INFO L225 Difference]: With dead ends: 1201 [2020-11-06 23:46:10,242 INFO L226 Difference]: Without dead ends: 878 [2020-11-06 23:46:10,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-06 23:46:10,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-11-06 23:46:10,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 721. [2020-11-06 23:46:10,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2020-11-06 23:46:10,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 808 transitions. [2020-11-06 23:46:10,555 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 808 transitions. Word has length 167 [2020-11-06 23:46:10,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:10,556 INFO L481 AbstractCegarLoop]: Abstraction has 721 states and 808 transitions. [2020-11-06 23:46:10,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 23:46:10,556 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 808 transitions. [2020-11-06 23:46:10,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-11-06 23:46:10,559 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:10,559 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:10,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 23:46:10,560 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:46:10,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:10,561 INFO L82 PathProgramCache]: Analyzing trace with hash -230823547, now seen corresponding path program 1 times [2020-11-06 23:46:10,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:10,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248056781] [2020-11-06 23:46:10,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:10,564 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:10,975 WARN L194 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:10,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:11,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:11,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:11,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:11,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:11,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:11,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-06 23:46:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:11,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-06 23:46:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:11,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-06 23:46:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:11,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248056781] [2020-11-06 23:46:11,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:11,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:46:11,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912957449] [2020-11-06 23:46:11,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:46:11,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:11,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:46:11,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:46:11,156 INFO L87 Difference]: Start difference. First operand 721 states and 808 transitions. Second operand 10 states. [2020-11-06 23:46:11,892 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:13,548 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:13,969 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:14,405 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:14,877 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:15,293 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:16,383 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:16,771 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:17,238 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:18,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:18,554 INFO L93 Difference]: Finished difference Result 1870 states and 2260 transitions. [2020-11-06 23:46:18,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 23:46:18,555 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-11-06 23:46:18,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:18,566 INFO L225 Difference]: With dead ends: 1870 [2020-11-06 23:46:18,566 INFO L226 Difference]: Without dead ends: 1264 [2020-11-06 23:46:18,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-11-06 23:46:18,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2020-11-06 23:46:19,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1019. [2020-11-06 23:46:19,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2020-11-06 23:46:19,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1163 transitions. [2020-11-06 23:46:19,057 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1163 transitions. Word has length 172 [2020-11-06 23:46:19,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:19,058 INFO L481 AbstractCegarLoop]: Abstraction has 1019 states and 1163 transitions. [2020-11-06 23:46:19,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:46:19,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1163 transitions. [2020-11-06 23:46:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-11-06 23:46:19,063 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:19,064 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:19,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-06 23:46:19,064 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:46:19,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:19,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1928873531, now seen corresponding path program 1 times [2020-11-06 23:46:19,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:19,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166193052] [2020-11-06 23:46:19,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:19,069 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,448 WARN L194 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:19,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-06 23:46:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-06 23:46:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:46:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:46:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:46:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-11-06 23:46:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-11-06 23:46:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:19,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166193052] [2020-11-06 23:46:19,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:19,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-06 23:46:19,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686889722] [2020-11-06 23:46:19,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 23:46:19,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:19,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 23:46:19,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-06 23:46:19,685 INFO L87 Difference]: Start difference. First operand 1019 states and 1163 transitions. Second operand 11 states. [2020-11-06 23:46:21,568 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:21,990 WARN L194 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:46:22,465 WARN L194 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-06 23:46:22,921 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:23,363 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:23,747 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:26,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:26,246 INFO L93 Difference]: Finished difference Result 2535 states and 3215 transitions. [2020-11-06 23:46:26,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-06 23:46:26,247 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2020-11-06 23:46:26,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:26,258 INFO L225 Difference]: With dead ends: 2535 [2020-11-06 23:46:26,258 INFO L226 Difference]: Without dead ends: 1631 [2020-11-06 23:46:26,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-11-06 23:46:26,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2020-11-06 23:46:26,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1057. [2020-11-06 23:46:26,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2020-11-06 23:46:26,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1201 transitions. [2020-11-06 23:46:26,676 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1201 transitions. Word has length 222 [2020-11-06 23:46:26,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:26,677 INFO L481 AbstractCegarLoop]: Abstraction has 1057 states and 1201 transitions. [2020-11-06 23:46:26,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 23:46:26,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1201 transitions. [2020-11-06 23:46:26,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-11-06 23:46:26,683 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:26,683 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:26,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-06 23:46:26,684 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:46:26,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:26,684 INFO L82 PathProgramCache]: Analyzing trace with hash -489074139, now seen corresponding path program 1 times [2020-11-06 23:46:26,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:26,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719947861] [2020-11-06 23:46:26,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:26,688 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,142 WARN L194 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:27,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-06 23:46:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-06 23:46:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:46:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:46:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:46:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-11-06 23:46:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-11-06 23:46:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:27,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:27,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719947861] [2020-11-06 23:46:27,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:27,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-06 23:46:27,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145850304] [2020-11-06 23:46:27,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-06 23:46:27,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:27,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-06 23:46:27,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-11-06 23:46:27,477 INFO L87 Difference]: Start difference. First operand 1057 states and 1201 transitions. Second operand 14 states. [2020-11-06 23:46:28,351 WARN L194 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:28,777 WARN L194 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:46:29,192 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:29,619 WARN L194 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:30,017 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:31,372 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:31,804 WARN L194 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:32,276 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:32,755 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:33,166 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:35,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:35,967 INFO L93 Difference]: Finished difference Result 2609 states and 3285 transitions. [2020-11-06 23:46:35,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-06 23:46:35,967 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 222 [2020-11-06 23:46:35,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:35,978 INFO L225 Difference]: With dead ends: 2609 [2020-11-06 23:46:35,978 INFO L226 Difference]: Without dead ends: 1667 [2020-11-06 23:46:35,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-11-06 23:46:35,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2020-11-06 23:46:36,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1081. [2020-11-06 23:46:36,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1081 states. [2020-11-06 23:46:36,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1225 transitions. [2020-11-06 23:46:36,426 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1225 transitions. Word has length 222 [2020-11-06 23:46:36,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:36,426 INFO L481 AbstractCegarLoop]: Abstraction has 1081 states and 1225 transitions. [2020-11-06 23:46:36,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-06 23:46:36,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1225 transitions. [2020-11-06 23:46:36,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-11-06 23:46:36,432 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:36,432 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:36,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-06 23:46:36,433 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:46:36,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:36,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1109545886, now seen corresponding path program 1 times [2020-11-06 23:46:36,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:36,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307784325] [2020-11-06 23:46:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:36,437 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,840 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:36,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-06 23:46:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-06 23:46:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:46:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:46:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:46:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-11-06 23:46:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:36,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-11-06 23:46:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:37,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307784325] [2020-11-06 23:46:37,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:37,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 23:46:37,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42043879] [2020-11-06 23:46:37,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 23:46:37,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:37,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 23:46:37,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 23:46:37,064 INFO L87 Difference]: Start difference. First operand 1081 states and 1225 transitions. Second operand 8 states. [2020-11-06 23:46:37,751 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:38,591 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:43,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:43,868 INFO L93 Difference]: Finished difference Result 4087 states and 5192 transitions. [2020-11-06 23:46:43,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-06 23:46:43,869 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 222 [2020-11-06 23:46:43,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:43,890 INFO L225 Difference]: With dead ends: 4087 [2020-11-06 23:46:43,890 INFO L226 Difference]: Without dead ends: 3121 [2020-11-06 23:46:43,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-11-06 23:46:43,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2020-11-06 23:46:45,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 2221. [2020-11-06 23:46:45,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2221 states. [2020-11-06 23:46:45,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 2553 transitions. [2020-11-06 23:46:45,250 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 2553 transitions. Word has length 222 [2020-11-06 23:46:45,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:45,251 INFO L481 AbstractCegarLoop]: Abstraction has 2221 states and 2553 transitions. [2020-11-06 23:46:45,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 23:46:45,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 2553 transitions. [2020-11-06 23:46:45,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-11-06 23:46:45,259 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:45,259 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:45,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-06 23:46:45,262 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:46:45,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:45,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1695470857, now seen corresponding path program 1 times [2020-11-06 23:46:45,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:45,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028166433] [2020-11-06 23:46:45,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:45,267 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:45,691 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:45,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:45,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:45,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:45,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:45,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:45,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-11-06 23:46:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:45,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-06 23:46:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:45,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-06 23:46:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:45,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-06 23:46:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:45,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:45,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:46:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:45,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:46:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:46,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:46,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:46,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:46:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:46,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-11-06 23:46:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:46,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-11-06 23:46:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:46,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:46,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028166433] [2020-11-06 23:46:46,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:46,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-11-06 23:46:46,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001473748] [2020-11-06 23:46:46,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-06 23:46:46,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:46,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-06 23:46:46,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2020-11-06 23:46:46,260 INFO L87 Difference]: Start difference. First operand 2221 states and 2553 transitions. Second operand 21 states. [2020-11-06 23:46:47,043 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:47,620 WARN L194 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:48,038 WARN L194 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:46:48,456 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:48,893 WARN L194 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:46:49,279 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:50,461 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:51,720 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:52,192 WARN L194 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:46:52,831 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:53,312 WARN L194 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:46:55,621 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:56,058 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:46:56,469 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:56,903 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:46:57,405 WARN L194 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:57,899 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:46:58,312 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:58,749 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:46:59,598 WARN L194 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-11-06 23:47:00,616 WARN L194 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 208 [2020-11-06 23:47:01,420 WARN L194 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-11-06 23:47:06,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:06,075 INFO L93 Difference]: Finished difference Result 5132 states and 6250 transitions. [2020-11-06 23:47:06,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-11-06 23:47:06,076 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 227 [2020-11-06 23:47:06,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:06,095 INFO L225 Difference]: With dead ends: 5132 [2020-11-06 23:47:06,095 INFO L226 Difference]: Without dead ends: 3026 [2020-11-06 23:47:06,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1147 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=830, Invalid=3592, Unknown=0, NotChecked=0, Total=4422 [2020-11-06 23:47:06,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2020-11-06 23:47:07,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 2141. [2020-11-06 23:47:07,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2141 states. [2020-11-06 23:47:07,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 2427 transitions. [2020-11-06 23:47:07,112 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 2427 transitions. Word has length 227 [2020-11-06 23:47:07,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:07,113 INFO L481 AbstractCegarLoop]: Abstraction has 2141 states and 2427 transitions. [2020-11-06 23:47:07,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-06 23:47:07,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 2427 transitions. [2020-11-06 23:47:07,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-11-06 23:47:07,119 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:07,120 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:47:07,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-06 23:47:07,120 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:47:07,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:07,121 INFO L82 PathProgramCache]: Analyzing trace with hash 2026733900, now seen corresponding path program 1 times [2020-11-06 23:47:07,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:07,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992266208] [2020-11-06 23:47:07,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:07,538 WARN L194 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 84 [2020-11-06 23:47:07,688 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-06 23:47:08,345 WARN L194 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 169 [2020-11-06 23:47:09,006 WARN L194 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 168 [2020-11-06 23:47:09,648 WARN L194 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 169 [2020-11-06 23:47:10,293 WARN L194 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 168 [2020-11-06 23:47:10,298 INFO L316 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-11-06 23:47:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:47:10,514 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:47:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:47:10,679 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:47:10,917 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-06 23:47:10,917 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 23:47:10,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-06 23:47:10,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:47:10 BoogieIcfgContainer [2020-11-06 23:47:10,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 23:47:10,950 INFO L168 Benchmark]: Toolchain (without parser) took 84888.72 ms. Allocated memory was 155.2 MB in the beginning and 1.0 GB in the end (delta: 892.3 MB). Free memory was 130.1 MB in the beginning and 477.3 MB in the end (delta: -347.2 MB). Peak memory consumption was 546.1 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:10,950 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 155.2 MB. Free memory is still 129.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 23:47:10,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.99 ms. Allocated memory is still 155.2 MB. Free memory was 129.6 MB in the beginning and 108.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:10,951 INFO L168 Benchmark]: Boogie Preprocessor took 89.37 ms. Allocated memory is still 155.2 MB. Free memory was 108.6 MB in the beginning and 104.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:10,952 INFO L168 Benchmark]: RCFGBuilder took 1611.75 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 104.6 MB in the beginning and 123.9 MB in the end (delta: -19.4 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:10,953 INFO L168 Benchmark]: TraceAbstraction took 82660.43 ms. Allocated memory was 186.6 MB in the beginning and 1.0 GB in the end (delta: 860.9 MB). Free memory was 123.4 MB in the beginning and 477.3 MB in the end (delta: -353.9 MB). Peak memory consumption was 507.5 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:10,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 155.2 MB. Free memory is still 129.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 505.99 ms. Allocated memory is still 155.2 MB. Free memory was 129.6 MB in the beginning and 108.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 89.37 ms. Allocated memory is still 155.2 MB. Free memory was 108.6 MB in the beginning and 104.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1611.75 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 104.6 MB in the beginning and 123.9 MB in the end (delta: -19.4 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 82660.43 ms. Allocated memory was 186.6 MB in the beginning and 1.0 GB in the end (delta: 860.9 MB). Free memory was 123.4 MB in the beginning and 477.3 MB in the end (delta: -353.9 MB). Peak memory consumption was 507.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L220] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int pumpRunning = 0; [L501] int systemActive = 1; [L695] int waterLevel = 1; [L696] int methaneLevelCritical = 0; [L853] int cleanupTimeShifts = 4; [L926] int retValue_acc ; [L927] int tmp ; [L931] FCALL select_helpers() [L932] FCALL select_features() [L933] CALL, EXPR valid_product() [L844] int retValue_acc ; [L847] retValue_acc = 1 [L848] return (retValue_acc); [L933] RET, EXPR valid_product() [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) [L937] FCALL setup() [L938] CALL runTest() [L920] CALL test() [L424] int splverifierCounter ; [L425] int tmp ; [L426] int tmp___0 ; [L427] int tmp___1 ; [L428] int tmp___2 ; [L431] splverifierCounter = 0 [L433] COND TRUE 1 [L435] COND TRUE splverifierCounter < 4 [L441] tmp = __VERIFIER_nondet_int() [L443] COND TRUE \read(tmp) [L445] CALL waterRise() [L713] COND TRUE waterLevel < 2 [L714] waterLevel = waterLevel + 1 [L445] RET waterRise() [L451] tmp___0 = __VERIFIER_nondet_int() [L453] COND FALSE !(\read(tmp___0)) [L461] tmp___2 = __VERIFIER_nondet_int() [L463] COND TRUE \read(tmp___2) [L465] CALL startSystem() [L689] systemActive = 1 [L465] RET startSystem() [L480] CALL timeShift() [L508] COND FALSE !(\read(pumpRunning)) [L515] COND TRUE \read(systemActive) [L517] CALL processEnvironment() [L537] int tmp ; [L540] COND TRUE ! pumpRunning [L542] CALL, EXPR isHighWaterLevel() [L652] int retValue_acc ; [L653] int tmp ; [L654] int tmp___0 ; [L658] CALL, EXPR isHighWaterSensorDry() [L775] int retValue_acc ; [L778] COND FALSE !(waterLevel < 2) [L782] retValue_acc = 0 [L783] return (retValue_acc); [L658] RET, EXPR isHighWaterSensorDry() [L658] tmp = isHighWaterSensorDry() [L660] COND FALSE !(\read(tmp)) [L663] tmp___0 = 1 [L665] retValue_acc = tmp___0 [L666] return (retValue_acc); [L542] RET, EXPR isHighWaterLevel() [L542] tmp = isHighWaterLevel() [L544] COND TRUE \read(tmp) [L546] CALL activatePump() [L571] int tmp ; [L575] CALL, EXPR isMethaneAlarm() [L596] int retValue_acc ; [L600] CALL, EXPR isMethaneLevelCritical() [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); [L600] RET, EXPR isMethaneLevelCritical() [L600] retValue_acc = isMethaneLevelCritical() [L602] return (retValue_acc); [L575] RET, EXPR isMethaneAlarm() [L575] tmp = isMethaneAlarm() [L577] COND FALSE !(\read(tmp)) [L581] CALL activatePump__wrappee__highWaterSensor() [L565] pumpRunning = 1 [L581] RET activatePump__wrappee__highWaterSensor() [L546] RET activatePump() [L517] RET processEnvironment() [L523] CALL __utac_acc__Specification1_spec__1() [L790] int tmp ; [L791] int tmp___0 ; [L795] CALL, EXPR isMethaneLevelCritical() [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); [L795] RET, EXPR isMethaneLevelCritical() [L795] tmp = isMethaneLevelCritical() [L797] COND FALSE !(\read(tmp)) [L523] RET __utac_acc__Specification1_spec__1() [L480] RET timeShift() [L433] COND TRUE 1 [L435] COND TRUE splverifierCounter < 4 [L441] tmp = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp)) [L451] tmp___0 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___0) [L455] CALL changeMethaneLevel() [L725] COND FALSE !(\read(methaneLevelCritical)) [L728] methaneLevelCritical = 1 [L455] RET changeMethaneLevel() [L461] tmp___2 = __VERIFIER_nondet_int() [L463] COND TRUE \read(tmp___2) [L465] CALL startSystem() [L689] systemActive = 1 [L465] RET startSystem() [L480] CALL timeShift() [L508] COND TRUE \read(pumpRunning) [L510] CALL lowerWaterLevel() [L701] COND TRUE waterLevel > 0 [L702] waterLevel = waterLevel - 1 [L510] RET lowerWaterLevel() [L515] COND TRUE \read(systemActive) [L517] CALL processEnvironment() [L537] int tmp ; [L540] COND FALSE !(! pumpRunning) [L555] FCALL processEnvironment__wrappee__base() [L517] RET processEnvironment() [L523] CALL __utac_acc__Specification1_spec__1() [L790] int tmp ; [L791] int tmp___0 ; [L795] CALL, EXPR isMethaneLevelCritical() [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); [L795] RET, EXPR isMethaneLevelCritical() [L795] tmp = isMethaneLevelCritical() [L797] COND TRUE \read(tmp) [L799] CALL, EXPR isPumpRunning() [L607] int retValue_acc ; [L610] retValue_acc = pumpRunning [L611] return (retValue_acc); [L799] RET, EXPR isPumpRunning() [L799] tmp___0 = isPumpRunning() [L801] COND TRUE \read(tmp___0) [L803] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product44.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 638 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 82.5s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 67.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2389 SDtfs, 6534 SDslu, 6382 SDs, 0 SdLazy, 13638 SolverSat, 2348 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 461 GetRequests, 266 SyntacticMatches, 3 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1549 ImplicationChecksByTransitivity, 31.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2221occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 3537 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...