/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_spec3_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:01:42,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:01:42,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:01:42,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:01:42,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:01:42,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:01:42,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:01:42,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:01:42,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:01:42,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:01:42,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:01:42,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:01:42,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:01:42,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:01:42,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:01:42,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:01:42,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:01:42,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:01:42,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:01:42,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:01:42,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:01:42,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:01:42,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:01:42,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:01:42,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:01:42,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:01:42,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:01:42,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:01:42,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:01:42,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:01:42,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:01:42,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:01:42,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:01:42,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:01:42,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:01:42,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:01:42,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:01:42,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:01:42,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:01:42,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:01:42,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:01:42,766 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:01:42,793 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:01:42,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:01:42,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:01:42,797 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:01:42,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:01:42,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:01:42,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:01:42,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:01:42,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:01:42,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:01:42,800 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:01:42,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:01:42,800 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:01:42,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:01:42,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:01:42,801 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:01:42,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:01:42,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:01:42,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:01:42,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:01:42,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:01:42,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:01:42,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:01:43,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:01:43,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:01:43,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:01:43,313 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:01:43,314 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:01:43,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-11-07 00:01:43,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24c65c564/198355b49a104e89a25b0d547b13d696/FLAG85f92794c [2020-11-07 00:01:44,163 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:01:44,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-11-07 00:01:44,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24c65c564/198355b49a104e89a25b0d547b13d696/FLAG85f92794c [2020-11-07 00:01:44,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24c65c564/198355b49a104e89a25b0d547b13d696 [2020-11-07 00:01:44,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:01:44,448 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:01:44,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:44,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:01:44,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:01:44,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:44" (1/1) ... [2020-11-07 00:01:44,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a12fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:44, skipping insertion in model container [2020-11-07 00:01:44,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:44" (1/1) ... [2020-11-07 00:01:44,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:01:44,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:01:44,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:44,979 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:01:45,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:45,208 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:01:45,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:45 WrapperNode [2020-11-07 00:01:45,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:45,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:01:45,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:01:45,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:01:45,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:45" (1/1) ... [2020-11-07 00:01:45,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:45" (1/1) ... [2020-11-07 00:01:45,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:45" (1/1) ... [2020-11-07 00:01:45,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:45" (1/1) ... [2020-11-07 00:01:45,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:45" (1/1) ... [2020-11-07 00:01:45,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:45" (1/1) ... [2020-11-07 00:01:45,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:45" (1/1) ... [2020-11-07 00:01:45,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:01:45,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:01:45,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:01:45,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:01:45,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:45" (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 [2020-11-07 00:01:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:01:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:01:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:01:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:01:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:01:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:01:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:01:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:01:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:01:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:01:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:01:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:01:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:01:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:01:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 00:01:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:01:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:01:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:01:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:01:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:01:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:01:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:01:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:01:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:01:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:01:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:01:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:01:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:01:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:01:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:01:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:01:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:01:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:01:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:01:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 00:01:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:01:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:01:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:01:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:01:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:01:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:01:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:01:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:01:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:01:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:01:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:01:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:01:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:01:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:01:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:01:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:01:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:01:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:01:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:01:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:01:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 00:01:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:01:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:01:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:01:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:01:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:01:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:01:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:01:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 00:01:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:01:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:01:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:01:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:01:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:01:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:01:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:01:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:01:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:01:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:01:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:01:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:01:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:01:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:01:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:01:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:01:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:01:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:01:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:01:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:01:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:01:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:01:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:01:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:01:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:01:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:01:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:01:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:01:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:01:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:01:46,640 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:01:46,641 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:01:46,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:01:46 BoogieIcfgContainer [2020-11-07 00:01:46,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:01:46,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:01:46,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:01:46,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:01:46,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:01:44" (1/3) ... [2020-11-07 00:01:46,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365092a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:01:46, skipping insertion in model container [2020-11-07 00:01:46,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:45" (2/3) ... [2020-11-07 00:01:46,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365092a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:01:46, skipping insertion in model container [2020-11-07 00:01:46,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:01:46" (3/3) ... [2020-11-07 00:01:46,654 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2020-11-07 00:01:46,673 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:01:46,676 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:01:46,688 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:01:46,715 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:01:46,715 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:01:46,715 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:01:46,715 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:01:46,715 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:01:46,716 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:01:46,716 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:01:46,716 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:01:46,739 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states. [2020-11-07 00:01:46,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:01:46,760 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:46,761 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] [2020-11-07 00:01:46,762 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]=== [2020-11-07 00:01:46,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:46,768 INFO L82 PathProgramCache]: Analyzing trace with hash 2031351178, now seen corresponding path program 1 times [2020-11-07 00:01:46,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:46,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603042759] [2020-11-07 00:01:46,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:46,858 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,638 WARN L194 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:47,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:01:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:01:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:01:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:01:47,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603042759] [2020-11-07 00:01:47,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:47,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:01:47,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189799851] [2020-11-07 00:01:47,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:01:47,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:47,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:01:47,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:01:47,892 INFO L87 Difference]: Start difference. First operand 317 states. Second operand 3 states. [2020-11-07 00:01:49,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:49,577 INFO L93 Difference]: Finished difference Result 459 states and 547 transitions. [2020-11-07 00:01:49,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:01:49,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:01:49,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:49,598 INFO L225 Difference]: With dead ends: 459 [2020-11-07 00:01:49,599 INFO L226 Difference]: Without dead ends: 288 [2020-11-07 00:01:49,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:01:49,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-11-07 00:01:49,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 247. [2020-11-07 00:01:49,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-11-07 00:01:49,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 267 transitions. [2020-11-07 00:01:49,854 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 267 transitions. Word has length 159 [2020-11-07 00:01:49,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:49,858 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 267 transitions. [2020-11-07 00:01:49,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:01:49,858 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 267 transitions. [2020-11-07 00:01:49,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:01:49,872 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:49,873 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] [2020-11-07 00:01:49,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:01:49,874 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]=== [2020-11-07 00:01:49,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:49,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1611006940, now seen corresponding path program 1 times [2020-11-07 00:01:49,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:49,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36905879] [2020-11-07 00:01:49,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:49,885 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:50,471 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:50,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:50,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:50,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:50,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:50,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:50,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:01:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:50,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:01:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:50,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:01:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:50,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:01:50,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36905879] [2020-11-07 00:01:50,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:50,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:01:50,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374599665] [2020-11-07 00:01:50,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:01:50,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:50,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:01:50,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:01:50,605 INFO L87 Difference]: Start difference. First operand 247 states and 267 transitions. Second operand 4 states. [2020-11-07 00:01:51,596 WARN L194 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:01:52,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:52,649 INFO L93 Difference]: Finished difference Result 367 states and 410 transitions. [2020-11-07 00:01:52,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:01:52,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:01:52,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:52,655 INFO L225 Difference]: With dead ends: 367 [2020-11-07 00:01:52,656 INFO L226 Difference]: Without dead ends: 271 [2020-11-07 00:01:52,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:01:52,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-11-07 00:01:52,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 237. [2020-11-07 00:01:52,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-11-07 00:01:52,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 254 transitions. [2020-11-07 00:01:52,805 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 254 transitions. Word has length 160 [2020-11-07 00:01:52,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:52,806 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 254 transitions. [2020-11-07 00:01:52,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:01:52,807 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 254 transitions. [2020-11-07 00:01:52,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:01:52,810 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:52,810 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] [2020-11-07 00:01:52,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:01:52,811 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]=== [2020-11-07 00:01:52,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:52,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1708593743, now seen corresponding path program 1 times [2020-11-07 00:01:52,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:52,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500696344] [2020-11-07 00:01:52,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:52,816 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,267 WARN L194 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:53,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:01:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:01:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:01:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:01:53,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500696344] [2020-11-07 00:01:53,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:53,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:01:53,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900613211] [2020-11-07 00:01:53,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:01:53,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:53,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:01:53,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:01:53,452 INFO L87 Difference]: Start difference. First operand 237 states and 254 transitions. Second operand 9 states. [2020-11-07 00:01:54,133 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:54,626 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:01:55,011 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:01:55,428 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:55,832 WARN L194 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:56,263 WARN L194 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:57,538 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:01:59,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:59,811 INFO L93 Difference]: Finished difference Result 620 states and 710 transitions. [2020-11-07 00:01:59,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:01:59,816 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:01:59,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:59,823 INFO L225 Difference]: With dead ends: 620 [2020-11-07 00:01:59,823 INFO L226 Difference]: Without dead ends: 498 [2020-11-07 00:01:59,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:01:59,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-11-07 00:02:00,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 433. [2020-11-07 00:02:00,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-11-07 00:02:00,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 482 transitions. [2020-11-07 00:02:00,071 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 482 transitions. Word has length 169 [2020-11-07 00:02:00,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:00,072 INFO L481 AbstractCegarLoop]: Abstraction has 433 states and 482 transitions. [2020-11-07 00:02:00,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:00,072 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 482 transitions. [2020-11-07 00:02:00,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 00:02:00,075 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:00,076 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, 1, 1, 1, 1, 1] [2020-11-07 00:02:00,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:02:00,076 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]=== [2020-11-07 00:02:00,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:00,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1824695516, now seen corresponding path program 1 times [2020-11-07 00:02:00,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:00,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742302710] [2020-11-07 00:02:00,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:00,093 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:00,566 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:00,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:00,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:00,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:00,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:00,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:00,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 00:02:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:00,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:02:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:00,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-07 00:02:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:00,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 00:02:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:00,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-07 00:02:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:00,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:00,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742302710] [2020-11-07 00:02:00,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:00,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:00,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537764453] [2020-11-07 00:02:00,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:00,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:00,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:00,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:00,737 INFO L87 Difference]: Start difference. First operand 433 states and 482 transitions. Second operand 9 states. [2020-11-07 00:02:01,517 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:03,781 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:04,250 WARN L194 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:04,786 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:05,260 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:05,665 WARN L194 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:06,104 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:06,522 WARN L194 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:07,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:07,534 INFO L93 Difference]: Finished difference Result 1235 states and 1526 transitions. [2020-11-07 00:02:07,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:02:07,539 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2020-11-07 00:02:07,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:07,548 INFO L225 Difference]: With dead ends: 1235 [2020-11-07 00:02:07,548 INFO L226 Difference]: Without dead ends: 917 [2020-11-07 00:02:07,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:02:07,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-11-07 00:02:07,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 729. [2020-11-07 00:02:07,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2020-11-07 00:02:07,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 835 transitions. [2020-11-07 00:02:07,863 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 835 transitions. Word has length 177 [2020-11-07 00:02:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:07,864 INFO L481 AbstractCegarLoop]: Abstraction has 729 states and 835 transitions. [2020-11-07 00:02:07,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 835 transitions. [2020-11-07 00:02:07,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-11-07 00:02:07,869 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:07,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:02:07,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:02:07,870 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]=== [2020-11-07 00:02:07,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:07,870 INFO L82 PathProgramCache]: Analyzing trace with hash -622264182, now seen corresponding path program 1 times [2020-11-07 00:02:07,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:07,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913335623] [2020-11-07 00:02:07,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:07,874 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,270 WARN L194 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:08,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-11-07 00:02:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-11-07 00:02:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:02:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 00:02:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-07 00:02:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-11-07 00:02:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:08,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913335623] [2020-11-07 00:02:08,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:08,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:02:08,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368245533] [2020-11-07 00:02:08,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:02:08,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:08,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:02:08,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:02:08,456 INFO L87 Difference]: Start difference. First operand 729 states and 835 transitions. Second operand 6 states. [2020-11-07 00:02:09,150 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:10,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:10,195 INFO L93 Difference]: Finished difference Result 1192 states and 1407 transitions. [2020-11-07 00:02:10,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 00:02:10,196 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2020-11-07 00:02:10,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:10,200 INFO L225 Difference]: With dead ends: 1192 [2020-11-07 00:02:10,200 INFO L226 Difference]: Without dead ends: 578 [2020-11-07 00:02:10,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:02:10,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-11-07 00:02:10,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 548. [2020-11-07 00:02:10,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-11-07 00:02:10,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 599 transitions. [2020-11-07 00:02:10,421 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 599 transitions. Word has length 187 [2020-11-07 00:02:10,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:10,421 INFO L481 AbstractCegarLoop]: Abstraction has 548 states and 599 transitions. [2020-11-07 00:02:10,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:02:10,421 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 599 transitions. [2020-11-07 00:02:10,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-11-07 00:02:10,425 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:10,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:02:10,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:02:10,426 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]=== [2020-11-07 00:02:10,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:10,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1553769436, now seen corresponding path program 1 times [2020-11-07 00:02:10,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:10,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959682252] [2020-11-07 00:02:10,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:10,430 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:02:10,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:02:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:02:10,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:02:10,792 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:02:10,793 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:02:10,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:02:10,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:02:10 BoogieIcfgContainer [2020-11-07 00:02:10,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:02:10,820 INFO L168 Benchmark]: Toolchain (without parser) took 26376.28 ms. Allocated memory was 151.0 MB in the beginning and 467.7 MB in the end (delta: 316.7 MB). Free memory was 126.6 MB in the beginning and 213.8 MB in the end (delta: -87.2 MB). Peak memory consumption was 230.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:10,821 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:02:10,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.95 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 104.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:10,822 INFO L168 Benchmark]: Boogie Preprocessor took 135.59 ms. Allocated memory is still 151.0 MB. Free memory was 104.6 MB in the beginning and 100.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:10,823 INFO L168 Benchmark]: RCFGBuilder took 1298.48 ms. Allocated memory is still 151.0 MB. Free memory was 100.7 MB in the beginning and 94.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 35.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:10,824 INFO L168 Benchmark]: TraceAbstraction took 24171.27 ms. Allocated memory was 151.0 MB in the beginning and 467.7 MB in the end (delta: 316.7 MB). Free memory was 93.6 MB in the beginning and 213.8 MB in the end (delta: -120.3 MB). Peak memory consumption was 195.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:10,828 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 756.95 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 104.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 135.59 ms. Allocated memory is still 151.0 MB. Free memory was 104.6 MB in the beginning and 100.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1298.48 ms. Allocated memory is still 151.0 MB. Free memory was 100.7 MB in the beginning and 94.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 35.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24171.27 ms. Allocated memory was 151.0 MB in the beginning and 467.7 MB in the end (delta: 316.7 MB). Free memory was 93.6 MB in the beginning and 213.8 MB in the end (delta: -120.3 MB). Peak memory consumption was 195.9 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: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L560] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L757] int waterLevel = 1; [L758] int methaneLevelCritical = 0; [L846] int cleanupTimeShifts = 4; [L919] int retValue_acc ; [L920] int tmp ; [L924] FCALL select_helpers() [L925] FCALL select_features() [L926] CALL, EXPR valid_product() [L382] int retValue_acc ; [L385] retValue_acc = 1 [L386] return (retValue_acc); [L926] RET, EXPR valid_product() [L926] tmp = valid_product() [L928] COND TRUE \read(tmp) [L930] FCALL setup() [L931] CALL runTest() [L913] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L775] COND TRUE waterLevel < 2 [L776] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L102] CALL timeShift() [L130] COND FALSE !(\read(pumpRunning)) [L137] COND TRUE \read(systemActive) [L139] CALL processEnvironment() [L159] int tmp ; [L162] COND FALSE !(\read(pumpRunning)) [L177] FCALL processEnvironment__wrappee__base() [L139] RET processEnvironment() [L145] CALL __utac_acc__Specification3_spec__1() [L311] int tmp ; [L312] int tmp___0 ; [L313] int tmp___1 ; [L317] CALL, EXPR isMethaneLevelCritical() [L796] int retValue_acc ; [L799] retValue_acc = methaneLevelCritical [L800] return (retValue_acc); [L317] RET, EXPR isMethaneLevelCritical() [L317] tmp = isMethaneLevelCritical() [L319] COND FALSE !(\read(tmp)) [L323] CALL, EXPR getWaterLevel() [L828] int retValue_acc ; [L831] retValue_acc = waterLevel [L832] return (retValue_acc); [L323] RET, EXPR getWaterLevel() [L323] tmp___0 = getWaterLevel() [L325] COND TRUE tmp___0 == 2 [L327] CALL, EXPR isPumpRunning() [L229] int retValue_acc ; [L232] retValue_acc = pumpRunning [L233] return (retValue_acc); [L327] RET, EXPR isPumpRunning() [L327] tmp___1 = isPumpRunning() [L329] COND FALSE !(\read(tmp___1)) [L333] CALL __automaton_fail() [L348] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product27.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 637 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 18.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1100 SDtfs, 1638 SDslu, 1385 SDs, 0 SdLazy, 2906 SolverSat, 505 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=729occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 358 StatesRemovedByMinimization, 5 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...