/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_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:00:43,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:00:43,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:00:43,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:00:43,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:00:43,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:00:43,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:00:43,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:00:43,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:00:43,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:00:43,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:00:43,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:00:43,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:00:43,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:00:43,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:00:43,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:00:43,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:00:43,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:00:43,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:00:43,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:00:43,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:00:43,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:00:43,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:00:43,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:00:43,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:00:43,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:00:43,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:00:43,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:00:43,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:00:43,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:00:43,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:00:43,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:00:43,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:00:43,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:00:43,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:00:43,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:00:43,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:00:43,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:00:43,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:00:43,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:00:43,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:00:43,743 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 00:00:43,767 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:00:43,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:00:43,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:00:43,772 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:00:43,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:00:43,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:00:43,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:00:43,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:00:43,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:00:43,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:00:43,774 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:00:43,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:00:43,775 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:00:43,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:00:43,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:00:43,775 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:00:43,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:00:43,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:00:43,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:00:43,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:00:43,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:00:43,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:00:43,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:00:44,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:00:44,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:00:44,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:00:44,232 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:00:44,233 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:00:44,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-11-07 00:00:44,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b8565055/b8e633c6ef604973b6f47af189ead740/FLAG4fe963f0b [2020-11-07 00:00:45,007 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:00:45,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-11-07 00:00:45,031 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b8565055/b8e633c6ef604973b6f47af189ead740/FLAG4fe963f0b [2020-11-07 00:00:45,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b8565055/b8e633c6ef604973b6f47af189ead740 [2020-11-07 00:00:45,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:00:45,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:00:45,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:00:45,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:00:45,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:00:45,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:45" (1/1) ... [2020-11-07 00:00:45,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a85f75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:45, skipping insertion in model container [2020-11-07 00:00:45,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:45" (1/1) ... [2020-11-07 00:00:45,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:00:45,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:00:45,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:00:45,711 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:00:45,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:00:45,912 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:00:45,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:45 WrapperNode [2020-11-07 00:00:45,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:00:45,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:00:45,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:00:45,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:00:45,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:45" (1/1) ... [2020-11-07 00:00:45,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:45" (1/1) ... [2020-11-07 00:00:45,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:45" (1/1) ... [2020-11-07 00:00:45,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:45" (1/1) ... [2020-11-07 00:00:46,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:45" (1/1) ... [2020-11-07 00:00:46,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:45" (1/1) ... [2020-11-07 00:00:46,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:45" (1/1) ... [2020-11-07 00:00:46,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:00:46,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:00:46,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:00:46,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:00:46,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:45" (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 00:00:46,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:00:46,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:00:46,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:00:46,157 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:00:46,157 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:00:46,157 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:00:46,157 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:00:46,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:00:46,158 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:00:46,158 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:00:46,158 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:00:46,158 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:00:46,158 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:00:46,158 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:00:46,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:00:46,159 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:00:46,159 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:00:46,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:00:46,159 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:00:46,159 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:00:46,160 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:00:46,160 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:00:46,160 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:00:46,160 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-11-07 00:00:46,160 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:00:46,160 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:00:46,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:00:46,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:00:46,161 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:00:46,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:00:46,161 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:00:46,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:00:46,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:00:46,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:00:46,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:00:46,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:00:46,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:00:46,162 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:00:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:00:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:00:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:00:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:00:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:00:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:00:46,164 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:00:46,164 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:00:46,164 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:00:46,164 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:00:46,164 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:00:46,164 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:00:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:00:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:00:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:00:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:00:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:00:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:00:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:00:46,166 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:00:46,166 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:00:46,166 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:00:46,166 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:00:46,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:00:46,166 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:00:46,166 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:00:46,167 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:00:46,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:00:46,167 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:00:46,167 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:00:46,167 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:00:46,167 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-11-07 00:00:46,168 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:00:46,168 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:00:46,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:00:46,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:00:46,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:00:46,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:00:46,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:00:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:00:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:00:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:00:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:00:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:00:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:00:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:00:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:00:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:00:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:00:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:00:47,871 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:00:47,871 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:00:47,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:47 BoogieIcfgContainer [2020-11-07 00:00:47,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:00:47,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:00:47,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:00:47,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:00:47,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:00:45" (1/3) ... [2020-11-07 00:00:47,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8e9ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:47, skipping insertion in model container [2020-11-07 00:00:47,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:45" (2/3) ... [2020-11-07 00:00:47,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8e9ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:47, skipping insertion in model container [2020-11-07 00:00:47,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:47" (3/3) ... [2020-11-07 00:00:47,884 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-11-07 00:00:47,900 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:00:47,904 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:00:47,917 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:00:47,941 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:00:47,941 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:00:47,941 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:00:47,942 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:00:47,942 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:00:47,942 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:00:47,942 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:00:47,942 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:00:47,964 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states. [2020-11-07 00:00:47,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:00:47,984 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:47,985 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 00:00:47,985 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 00:00:47,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:47,992 INFO L82 PathProgramCache]: Analyzing trace with hash -2007921892, now seen corresponding path program 1 times [2020-11-07 00:00:48,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:48,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309246670] [2020-11-07 00:00:48,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:48,073 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:49,071 WARN L194 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:49,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:49,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:49,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:49,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:49,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:49,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:00:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:49,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:00:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:49,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:00:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:49,246 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 00:00:49,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309246670] [2020-11-07 00:00:49,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:49,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:00:49,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784013388] [2020-11-07 00:00:49,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:00:49,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:49,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:00:49,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:00:49,292 INFO L87 Difference]: Start difference. First operand 294 states. Second operand 3 states. [2020-11-07 00:00:51,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:51,382 INFO L93 Difference]: Finished difference Result 423 states and 506 transitions. [2020-11-07 00:00:51,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:00:51,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:00:51,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:51,421 INFO L225 Difference]: With dead ends: 423 [2020-11-07 00:00:51,422 INFO L226 Difference]: Without dead ends: 269 [2020-11-07 00:00:51,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:00:51,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-11-07 00:00:51,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 230. [2020-11-07 00:00:51,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-07 00:00:51,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 248 transitions. [2020-11-07 00:00:51,588 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 248 transitions. Word has length 159 [2020-11-07 00:00:51,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:51,589 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 248 transitions. [2020-11-07 00:00:51,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:00:51,589 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 248 transitions. [2020-11-07 00:00:51,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:00:51,594 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:51,594 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 00:00:51,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:00:51,595 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 00:00:51,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:51,595 INFO L82 PathProgramCache]: Analyzing trace with hash -815696678, now seen corresponding path program 1 times [2020-11-07 00:00:51,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:51,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144633810] [2020-11-07 00:00:51,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:51,600 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,351 WARN L194 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:52,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:00:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:00:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:00:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,443 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 00:00:52,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144633810] [2020-11-07 00:00:52,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:52,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:00:52,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90914737] [2020-11-07 00:00:52,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:00:52,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:52,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:00:52,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:00:52,446 INFO L87 Difference]: Start difference. First operand 230 states and 248 transitions. Second operand 4 states. [2020-11-07 00:00:53,752 WARN L194 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:00:55,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:55,084 INFO L93 Difference]: Finished difference Result 337 states and 377 transitions. [2020-11-07 00:00:55,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:00:55,085 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:00:55,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:55,090 INFO L225 Difference]: With dead ends: 337 [2020-11-07 00:00:55,090 INFO L226 Difference]: Without dead ends: 252 [2020-11-07 00:00:55,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:00:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-11-07 00:00:55,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 220. [2020-11-07 00:00:55,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-11-07 00:00:55,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 235 transitions. [2020-11-07 00:00:55,164 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 235 transitions. Word has length 160 [2020-11-07 00:00:55,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:55,165 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 235 transitions. [2020-11-07 00:00:55,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:00:55,165 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 235 transitions. [2020-11-07 00:00:55,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:00:55,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:55,167 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 00:00:55,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:00:55,168 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 00:00:55,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:55,169 INFO L82 PathProgramCache]: Analyzing trace with hash -106407251, now seen corresponding path program 1 times [2020-11-07 00:00:55,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:55,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417156097] [2020-11-07 00:00:55,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:55,174 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:56,054 WARN L194 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:56,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:56,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:56,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:56,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:56,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:56,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:00:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:56,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:00:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:56,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:00:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:56,288 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 00:00:56,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417156097] [2020-11-07 00:00:56,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:56,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:00:56,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157481105] [2020-11-07 00:00:56,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:00:56,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:56,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:00:56,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:00:56,292 INFO L87 Difference]: Start difference. First operand 220 states and 235 transitions. Second operand 9 states. [2020-11-07 00:00:57,291 WARN L194 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:58,127 WARN L194 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:00:58,830 WARN L194 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:00:59,524 WARN L194 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:00,259 WARN L194 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:00,956 WARN L194 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:03,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:03,156 INFO L93 Difference]: Finished difference Result 357 states and 402 transitions. [2020-11-07 00:01:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 00:01:03,159 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:01:03,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:03,162 INFO L225 Difference]: With dead ends: 357 [2020-11-07 00:01:03,163 INFO L226 Difference]: Without dead ends: 252 [2020-11-07 00:01:03,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-07 00:01:03,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-11-07 00:01:03,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 220. [2020-11-07 00:01:03,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-11-07 00:01:03,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 234 transitions. [2020-11-07 00:01:03,278 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 234 transitions. Word has length 169 [2020-11-07 00:01:03,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:03,279 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 234 transitions. [2020-11-07 00:01:03,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:01:03,279 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 234 transitions. [2020-11-07 00:01:03,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 00:01:03,282 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:03,282 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 00:01:03,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:01:03,283 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 00:01:03,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:03,283 INFO L82 PathProgramCache]: Analyzing trace with hash 883200755, now seen corresponding path program 1 times [2020-11-07 00:01:03,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:03,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809195717] [2020-11-07 00:01:03,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:03,287 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:04,015 WARN L194 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:04,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:04,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:04,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:04,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:04,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:04,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 00:01:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:04,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:01:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:04,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-07 00:01:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:04,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 00:01:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:04,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-07 00:01:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:04,209 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 00:01:04,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809195717] [2020-11-07 00:01:04,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:04,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:01:04,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138556405] [2020-11-07 00:01:04,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:01:04,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:04,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:01:04,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:01:04,212 INFO L87 Difference]: Start difference. First operand 220 states and 234 transitions. Second operand 9 states. [2020-11-07 00:01:05,302 WARN L194 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:08,341 WARN L194 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:09,183 WARN L194 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:09,910 WARN L194 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:10,637 WARN L194 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:11,329 WARN L194 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:12,300 WARN L194 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:13,053 WARN L194 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:13,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:13,633 INFO L93 Difference]: Finished difference Result 496 states and 587 transitions. [2020-11-07 00:01:13,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:01:13,634 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2020-11-07 00:01:13,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:13,645 INFO L225 Difference]: With dead ends: 496 [2020-11-07 00:01:13,645 INFO L226 Difference]: Without dead ends: 391 [2020-11-07 00:01:13,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:01:13,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-11-07 00:01:13,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 316. [2020-11-07 00:01:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-11-07 00:01:13,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 347 transitions. [2020-11-07 00:01:13,819 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 347 transitions. Word has length 177 [2020-11-07 00:01:13,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:13,820 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 347 transitions. [2020-11-07 00:01:13,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:01:13,820 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 347 transitions. [2020-11-07 00:01:13,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-11-07 00:01:13,823 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:13,823 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 00:01:13,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:01:13,824 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 00:01:13,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:13,824 INFO L82 PathProgramCache]: Analyzing trace with hash 556924098, now seen corresponding path program 1 times [2020-11-07 00:01:13,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:13,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512226293] [2020-11-07 00:01:13,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:13,835 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,516 WARN L194 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:14,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-11-07 00:01:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:01:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:01:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-07 00:01:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-07 00:01:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-11-07 00:01:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,687 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 00:01:14,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512226293] [2020-11-07 00:01:14,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:14,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:01:14,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982475771] [2020-11-07 00:01:14,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:01:14,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:14,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:01:14,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:01:14,690 INFO L87 Difference]: Start difference. First operand 316 states and 347 transitions. Second operand 6 states. [2020-11-07 00:01:15,672 WARN L194 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:16,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:16,671 INFO L93 Difference]: Finished difference Result 486 states and 552 transitions. [2020-11-07 00:01:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 00:01:16,677 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-11-07 00:01:16,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:16,682 INFO L225 Difference]: With dead ends: 486 [2020-11-07 00:01:16,683 INFO L226 Difference]: Without dead ends: 285 [2020-11-07 00:01:16,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:01:16,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-11-07 00:01:16,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 264. [2020-11-07 00:01:16,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-11-07 00:01:16,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 279 transitions. [2020-11-07 00:01:16,799 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 279 transitions. Word has length 182 [2020-11-07 00:01:16,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:16,800 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 279 transitions. [2020-11-07 00:01:16,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:01:16,800 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 279 transitions. [2020-11-07 00:01:16,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-11-07 00:01:16,803 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:16,803 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 00:01:16,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:01:16,803 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 00:01:16,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:16,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1284817486, now seen corresponding path program 1 times [2020-11-07 00:01:16,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:16,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725223] [2020-11-07 00:01:16,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:16,807 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:01:16,880 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:01:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:01:16,953 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:01:17,142 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:01:17,142 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:01:17,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:01:17,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:01:17 BoogieIcfgContainer [2020-11-07 00:01:17,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:01:17,169 INFO L168 Benchmark]: Toolchain (without parser) took 31889.32 ms. Allocated memory was 155.2 MB in the beginning and 425.7 MB in the end (delta: 270.5 MB). Free memory was 129.8 MB in the beginning and 216.7 MB in the end (delta: -86.9 MB). Peak memory consumption was 184.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:17,170 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 155.2 MB. Free memory is still 128.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:01:17,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.51 ms. Allocated memory is still 155.2 MB. Free memory was 129.2 MB in the beginning and 109.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:17,171 INFO L168 Benchmark]: Boogie Preprocessor took 127.10 ms. Allocated memory is still 155.2 MB. Free memory was 109.1 MB in the beginning and 105.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:17,172 INFO L168 Benchmark]: RCFGBuilder took 1833.00 ms. Allocated memory was 155.2 MB in the beginning and 204.5 MB in the end (delta: 49.3 MB). Free memory was 105.3 MB in the beginning and 139.6 MB in the end (delta: -34.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:17,173 INFO L168 Benchmark]: TraceAbstraction took 29291.03 ms. Allocated memory was 204.5 MB in the beginning and 425.7 MB in the end (delta: 221.2 MB). Free memory was 139.1 MB in the beginning and 216.7 MB in the end (delta: -77.6 MB). Peak memory consumption was 143.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:17,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 155.2 MB. Free memory is still 128.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 626.51 ms. Allocated memory is still 155.2 MB. Free memory was 129.2 MB in the beginning and 109.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 127.10 ms. Allocated memory is still 155.2 MB. Free memory was 109.1 MB in the beginning and 105.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1833.00 ms. Allocated memory was 155.2 MB in the beginning and 204.5 MB in the end (delta: 49.3 MB). Free memory was 105.3 MB in the beginning and 139.6 MB in the end (delta: -34.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29291.03 ms. Allocated memory was 204.5 MB in the beginning and 425.7 MB in the end (delta: 221.2 MB). Free memory was 139.1 MB in the beginning and 216.7 MB in the end (delta: -77.6 MB). Peak memory consumption was 143.6 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: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L175] int cleanupTimeShifts = 4; [L277] int pumpRunning = 0; [L278] int systemActive = 1; [L696] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L251] int retValue_acc ; [L252] int tmp ; [L256] FCALL select_helpers() [L257] FCALL select_features() [L258] CALL, EXPR valid_product() [L157] int retValue_acc ; [L160] retValue_acc = 1 [L161] return (retValue_acc); [L258] RET, EXPR valid_product() [L258] tmp = valid_product() [L260] COND TRUE \read(tmp) [L262] FCALL setup() [L263] CALL runTest() [L245] CALL test() [L463] int splverifierCounter ; [L464] int tmp ; [L465] int tmp___0 ; [L466] int tmp___1 ; [L467] int tmp___2 ; [L470] splverifierCounter = 0 [L472] COND TRUE 1 [L474] COND TRUE splverifierCounter < 4 [L480] tmp = __VERIFIER_nondet_int() [L482] COND TRUE \read(tmp) [L484] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L484] RET waterRise() [L490] tmp___0 = __VERIFIER_nondet_int() [L492] COND FALSE !(\read(tmp___0)) [L500] tmp___2 = __VERIFIER_nondet_int() [L502] COND TRUE \read(tmp___2) [L515] CALL timeShift() [L285] COND FALSE !(\read(pumpRunning)) [L292] COND TRUE \read(systemActive) [L294] CALL processEnvironment() [L314] int tmp ; [L317] COND FALSE !(\read(pumpRunning)) [L332] FCALL processEnvironment__wrappee__methaneQuery() [L294] RET processEnvironment() [L300] CALL __utac_acc__Specification3_spec__1() [L429] int tmp ; [L430] int tmp___0 ; [L431] int tmp___1 ; [L435] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L435] RET, EXPR isMethaneLevelCritical() [L435] tmp = isMethaneLevelCritical() [L437] COND FALSE !(\read(tmp)) [L441] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L441] RET, EXPR getWaterLevel() [L441] tmp___0 = getWaterLevel() [L443] COND TRUE tmp___0 == 2 [L445] CALL, EXPR isPumpRunning() [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); [L445] RET, EXPR isPumpRunning() [L445] tmp___1 = isPumpRunning() [L447] COND FALSE !(\read(tmp___1)) [L451] CALL __automaton_fail() [L170] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product13.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 612 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 23.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1026 SDtfs, 1490 SDslu, 1272 SDs, 0 SdLazy, 2326 SolverSat, 466 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=316occurred 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: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 199 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...