/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_spec4_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:05:21,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:05:21,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:05:21,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:05:21,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:05:21,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:05:21,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:05:21,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:05:21,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:05:21,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:05:21,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:05:21,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:05:21,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:05:21,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:05:21,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:05:21,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:05:21,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:05:21,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:05:21,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:05:21,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:05:21,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:05:21,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:05:21,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:05:21,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:05:21,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:05:21,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:05:21,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:05:21,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:05:21,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:05:21,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:05:21,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:05:21,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:05:21,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:05:21,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:05:21,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:05:21,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:05:21,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:05:21,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:05:21,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:05:21,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:05:21,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:05:21,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:05:21,198 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:05:21,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:05:21,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:05:21,200 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:05:21,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:05:21,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:05:21,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:05:21,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:05:21,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:05:21,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:05:21,202 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:05:21,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:05:21,202 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:05:21,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:05:21,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:05:21,203 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:05:21,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:05:21,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:05:21,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:05:21,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:05:21,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:05:21,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:05:21,204 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:05:21,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:05:21,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:05:21,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:05:21,669 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:05:21,669 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:05:21,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product22.cil.c [2020-10-23 20:05:21,753 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b04ce2c/8ec10b53eb5a431b8c749b34c1db78a6/FLAG57314ffa5 [2020-10-23 20:05:22,536 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:05:22,536 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product22.cil.c [2020-10-23 20:05:22,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b04ce2c/8ec10b53eb5a431b8c749b34c1db78a6/FLAG57314ffa5 [2020-10-23 20:05:22,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b04ce2c/8ec10b53eb5a431b8c749b34c1db78a6 [2020-10-23 20:05:22,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:05:22,763 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:05:22,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:05:22,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:05:22,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:05:22,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:05:22" (1/1) ... [2020-10-23 20:05:22,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4fb335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:22, skipping insertion in model container [2020-10-23 20:05:22,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:05:22" (1/1) ... [2020-10-23 20:05:22,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:05:22,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:05:23,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:05:23,239 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:05:23,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:05:23,498 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:05:23,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:23 WrapperNode [2020-10-23 20:05:23,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:05:23,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:05:23,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:05:23,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:05:23,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:23" (1/1) ... [2020-10-23 20:05:23,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:23" (1/1) ... [2020-10-23 20:05:23,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:23" (1/1) ... [2020-10-23 20:05:23,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:23" (1/1) ... [2020-10-23 20:05:23,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:23" (1/1) ... [2020-10-23 20:05:23,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:23" (1/1) ... [2020-10-23 20:05:23,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:23" (1/1) ... [2020-10-23 20:05:23,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:05:23,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:05:23,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:05:23,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:05:23,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:05:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:05:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:05:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:05:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:05:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:05:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:05:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:05:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:05:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:05:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:05:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:05:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:05:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:05:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:05:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:05:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:05:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:05:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 20:05:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:05:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:05:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:05:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:05:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:05:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:05:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:05:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:05:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:05:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:05:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:05:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:05:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:05:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:05:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:05:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:05:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:05:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:05:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:05:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:05:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:05:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:05:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:05:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:05:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:05:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:05:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:05:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:05:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:05:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:05:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:05:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:05:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:05:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:05:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:05:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:05:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:05:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:05:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:05:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:05:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:05:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:05:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:05:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:05:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:05:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:05:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:05:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:05:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:05:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 20:05:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:05:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:05:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:05:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:05:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:05:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:05:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:05:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:05:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:05:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:05:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:05:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:05:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:05:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:05:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:05:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:05:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:05:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:05:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:05:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:05:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:05:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:05:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:05:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:05:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:05:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:05:25,295 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:05:25,295 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:05:25,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:05:25 BoogieIcfgContainer [2020-10-23 20:05:25,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:05:25,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:05:25,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:05:25,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:05:25,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:05:22" (1/3) ... [2020-10-23 20:05:25,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5680976c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:05:25, skipping insertion in model container [2020-10-23 20:05:25,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:23" (2/3) ... [2020-10-23 20:05:25,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5680976c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:05:25, skipping insertion in model container [2020-10-23 20:05:25,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:05:25" (3/3) ... [2020-10-23 20:05:25,308 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product22.cil.c [2020-10-23 20:05:25,322 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:05:25,330 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:05:25,344 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:05:25,387 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:05:25,387 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:05:25,387 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:05:25,387 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:05:25,388 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:05:25,388 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:05:25,389 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:05:25,389 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:05:25,417 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-10-23 20:05:25,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:05:25,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:25,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:05:25,440 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:05:25,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:25,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1927201608, now seen corresponding path program 1 times [2020-10-23 20:05:25,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:25,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894521586] [2020-10-23 20:05:25,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:25,532 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:05:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:26,518 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:05:26,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:05:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:26,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:05:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:26,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:05:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:26,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:05:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:26,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:05:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:26,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:05:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:26,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:05:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:05:26,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894521586] [2020-10-23 20:05:26,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:05:26,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:05:26,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116093677] [2020-10-23 20:05:26,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:05:26,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:05:26,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:05:26,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:05:26,761 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 3 states. [2020-10-23 20:05:28,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:05:28,698 INFO L93 Difference]: Finished difference Result 484 states and 575 transitions. [2020-10-23 20:05:28,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:05:28,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:05:28,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:05:28,719 INFO L225 Difference]: With dead ends: 484 [2020-10-23 20:05:28,719 INFO L226 Difference]: Without dead ends: 301 [2020-10-23 20:05:28,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:05:28,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-23 20:05:28,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-10-23 20:05:28,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-10-23 20:05:28,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 280 transitions. [2020-10-23 20:05:28,892 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 280 transitions. Word has length 148 [2020-10-23 20:05:28,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:05:28,893 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 280 transitions. [2020-10-23 20:05:28,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:05:28,893 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 280 transitions. [2020-10-23 20:05:28,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:05:28,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:28,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:05:28,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:05:28,899 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:05:28,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:28,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1832185015, now seen corresponding path program 1 times [2020-10-23 20:05:28,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:28,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080227773] [2020-10-23 20:05:28,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:28,904 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:05:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:29,419 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:05:29,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:05:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:29,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:05:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:29,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:05:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:29,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:05:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:29,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:05:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:29,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:05:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:29,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:05:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:29,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:05:29,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080227773] [2020-10-23 20:05:29,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:05:29,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:05:29,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456477861] [2020-10-23 20:05:29,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:05:29,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:05:29,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:05:29,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:05:29,529 INFO L87 Difference]: Start difference. First operand 259 states and 280 transitions. Second operand 4 states. [2020-10-23 20:05:30,425 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:05:31,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:05:31,698 INFO L93 Difference]: Finished difference Result 394 states and 442 transitions. [2020-10-23 20:05:31,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:05:31,699 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:05:31,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:05:31,705 INFO L225 Difference]: With dead ends: 394 [2020-10-23 20:05:31,705 INFO L226 Difference]: Without dead ends: 284 [2020-10-23 20:05:31,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:05:31,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-23 20:05:31,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-10-23 20:05:31,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-23 20:05:31,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-10-23 20:05:31,815 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 149 [2020-10-23 20:05:31,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:05:31,816 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-10-23 20:05:31,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:05:31,817 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-10-23 20:05:31,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 20:05:31,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:31,819 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:05:31,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:05:31,820 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:05:31,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:31,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1143355297, now seen corresponding path program 1 times [2020-10-23 20:05:31,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:31,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974839903] [2020-10-23 20:05:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:31,825 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:05:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:32,428 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:05:32,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:05:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:32,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:05:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:32,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:05:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:32,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:05:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:32,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:05:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:32,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:05:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:32,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:05:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:32,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:05:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:32,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:05:32,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974839903] [2020-10-23 20:05:32,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:05:32,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:05:32,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647434370] [2020-10-23 20:05:32,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:05:32,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:05:32,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:05:32,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:05:32,714 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 10 states. [2020-10-23 20:05:33,511 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:05:34,014 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:05:34,435 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:05:34,854 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:35,259 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:35,626 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:37,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:05:37,564 INFO L93 Difference]: Finished difference Result 440 states and 504 transitions. [2020-10-23 20:05:37,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:05:37,570 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 20:05:37,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:05:37,574 INFO L225 Difference]: With dead ends: 440 [2020-10-23 20:05:37,574 INFO L226 Difference]: Without dead ends: 306 [2020-10-23 20:05:37,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:05:37,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-10-23 20:05:37,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-10-23 20:05:37,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-23 20:05:37,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 266 transitions. [2020-10-23 20:05:37,667 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 266 transitions. Word has length 162 [2020-10-23 20:05:37,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:05:37,667 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 266 transitions. [2020-10-23 20:05:37,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:05:37,668 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 266 transitions. [2020-10-23 20:05:37,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-23 20:05:37,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:37,670 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] [2020-10-23 20:05:37,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:05:37,670 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:05:37,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:37,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1097640629, now seen corresponding path program 1 times [2020-10-23 20:05:37,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:37,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658738466] [2020-10-23 20:05:37,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:37,675 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:05:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:38,160 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:05:38,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:05:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:38,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:05:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:38,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:05:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:38,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:05:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:38,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:05:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:38,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:05:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:38,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:05:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:38,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:05:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:38,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:05:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:38,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:05:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:38,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 20:05:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:38,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:05:38,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658738466] [2020-10-23 20:05:38,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:05:38,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 20:05:38,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997242450] [2020-10-23 20:05:38,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 20:05:38,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:05:38,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 20:05:38,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:05:38,430 INFO L87 Difference]: Start difference. First operand 249 states and 266 transitions. Second operand 15 states. [2020-10-23 20:05:39,155 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:05:39,684 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:05:40,077 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:05:40,504 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:40,883 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:41,250 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:42,111 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:05:44,035 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:44,508 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:45,135 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:45,589 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:05:45,980 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:05:46,390 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:05:46,796 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:05:47,180 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:47,568 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:48,073 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:48,633 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:05:49,047 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:49,597 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:52,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:05:52,101 INFO L93 Difference]: Finished difference Result 870 states and 1089 transitions. [2020-10-23 20:05:52,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-23 20:05:52,102 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 175 [2020-10-23 20:05:52,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:05:52,112 INFO L225 Difference]: With dead ends: 870 [2020-10-23 20:05:52,112 INFO L226 Difference]: Without dead ends: 736 [2020-10-23 20:05:52,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=386, Invalid=1336, Unknown=0, NotChecked=0, Total=1722 [2020-10-23 20:05:52,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2020-10-23 20:05:52,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 493. [2020-10-23 20:05:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2020-10-23 20:05:52,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 547 transitions. [2020-10-23 20:05:52,400 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 547 transitions. Word has length 175 [2020-10-23 20:05:52,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:05:52,401 INFO L481 AbstractCegarLoop]: Abstraction has 493 states and 547 transitions. [2020-10-23 20:05:52,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 20:05:52,401 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 547 transitions. [2020-10-23 20:05:52,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-23 20:05:52,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:52,406 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] [2020-10-23 20:05:52,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:05:52,406 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:05:52,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:52,407 INFO L82 PathProgramCache]: Analyzing trace with hash -583036619, now seen corresponding path program 1 times [2020-10-23 20:05:52,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:52,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448558656] [2020-10-23 20:05:52,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:52,411 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:05:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:52,834 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:05:52,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:05:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:52,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:05:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:52,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:05:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:52,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:05:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:52,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:05:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:52,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 20:05:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:52,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:05:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:52,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:05:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:53,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 20:05:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:53,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:05:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:53,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:05:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:53,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 20:05:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:53,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 20:05:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:53,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:05:53,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1448558656] [2020-10-23 20:05:53,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:05:53,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:05:53,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386167205] [2020-10-23 20:05:53,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:05:53,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:05:53,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:05:53,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:05:53,100 INFO L87 Difference]: Start difference. First operand 493 states and 547 transitions. Second operand 7 states. [2020-10-23 20:05:53,752 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:05:54,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:05:54,909 INFO L93 Difference]: Finished difference Result 789 states and 923 transitions. [2020-10-23 20:05:54,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:05:54,910 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 185 [2020-10-23 20:05:54,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:05:54,913 INFO L225 Difference]: With dead ends: 789 [2020-10-23 20:05:54,914 INFO L226 Difference]: Without dead ends: 411 [2020-10-23 20:05:54,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:05:54,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-10-23 20:05:55,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 324. [2020-10-23 20:05:55,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-23 20:05:55,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 341 transitions. [2020-10-23 20:05:55,073 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 341 transitions. Word has length 185 [2020-10-23 20:05:55,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:05:55,074 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 341 transitions. [2020-10-23 20:05:55,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:05:55,074 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 341 transitions. [2020-10-23 20:05:55,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-23 20:05:55,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:55,079 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:05:55,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:05:55,079 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:05:55,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:55,080 INFO L82 PathProgramCache]: Analyzing trace with hash 825328861, now seen corresponding path program 1 times [2020-10-23 20:05:55,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:55,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569971369] [2020-10-23 20:05:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:55,257 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:05:55,507 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:05:55,713 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:05:55,915 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:05:56,117 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:05:56,334 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:05:56,550 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:05:56,760 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:05:56,993 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:05:57,211 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:05:57,421 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:05:57,648 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:05:57,871 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:05:58,087 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:06:00,749 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:06:00,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:03,420 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:06:03,432 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:05,949 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:06:08,434 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:06:08,441 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:10,913 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:06:10,920 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:13,408 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:06:13,413 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:14,526 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:06:14,531 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:15,654 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:06:15,664 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:15,670 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:16,712 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:06:16,719 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:19,113 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:06:19,118 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:21,550 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:06:21,561 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:24,019 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:06:26,440 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:06:26,450 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:28,879 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-10-23 20:06:28,885 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:30,018 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:06:30,023 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:32,437 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:06:32,454 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:34,897 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:06:34,902 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:37,341 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:06:37,344 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:39,801 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:06:39,806 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:42,293 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:06:42,297 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:44,754 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:06:44,758 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:47,207 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:06:47,213 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:48,350 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:06:48,357 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:49,823 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:06:49,827 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:49,830 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:50,156 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:06:50,468 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:06:50,782 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:06:51,099 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:06:51,415 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:06:51,725 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:06:52,036 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:06:52,359 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:06:52,361 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:52,658 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:06:52,971 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:06:53,270 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:06:53,564 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:06:53,863 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:06:54,170 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:06:54,475 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:06:54,795 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:06:54,798 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:55,107 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:06:55,428 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:06:55,725 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:06:56,018 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:06:56,346 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:06:56,654 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:06:56,974 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:06:57,271 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:06:57,273 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:57,573 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:06:57,875 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:06:58,185 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:06:58,506 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:06:58,819 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:06:59,135 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:06:59,451 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:06:59,771 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:06:59,774 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:02,212 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:02,216 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:04,745 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:04,750 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:06,037 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:06,042 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:08,497 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:08,500 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:11,009 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:11,012 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:13,472 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:15,947 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:15,951 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:18,488 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:18,492 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:18,494 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:21,005 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:07:22,464 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:07:22,467 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:23,947 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:07:23,954 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:26,472 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:07:26,476 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:28,954 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:07:28,959 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:31,437 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:07:31,441 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:33,935 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:07:33,938 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:35,667 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:07:35,673 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:38,188 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:38,192 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:40,669 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:40,673 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:43,288 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:45,004 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:45,008 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:47,556 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:47,564 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:50,156 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:52,725 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:52,729 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:55,266 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:55,271 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:55,274 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:55,605 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:55,936 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:56,263 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:56,604 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:56,948 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:57,294 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:57,620 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:57,930 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:57,932 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:00,492 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:08:00,496 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:02,444 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:08:02,448 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:05,026 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:08:05,029 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:07,574 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:08:07,577 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:10,108 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:08:10,113 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:12,632 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:08:14,497 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:08:14,501 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:17,104 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:08:17,110 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:17,480 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:17,833 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:08:18,173 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:18,533 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:18,956 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:08:19,325 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:19,695 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:08:20,055 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:08:20,057 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:22,218 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:08:22,221 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:24,815 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:08:24,821 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:26,854 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:08:29,481 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:08:29,485 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:32,035 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:08:34,609 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:08:34,613 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:36,714 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:08:36,718 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:39,275 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:08:39,279 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:39,283 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:08:40,448 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:08:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:08:40,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:08:41,081 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:08:41,082 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:08:41,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:08:41,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:08:41 BoogieIcfgContainer [2020-10-23 20:08:41,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:08:41,144 INFO L168 Benchmark]: Toolchain (without parser) took 198384.76 ms. Allocated memory was 157.3 MB in the beginning and 417.3 MB in the end (delta: 260.0 MB). Free memory was 132.6 MB in the beginning and 210.7 MB in the end (delta: -78.0 MB). Peak memory consumption was 182.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:41,151 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory was 100.0 MB in the beginning and 100.0 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:08:41,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.22 ms. Allocated memory is still 157.3 MB. Free memory was 132.0 MB in the beginning and 110.4 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:41,158 INFO L168 Benchmark]: Boogie Preprocessor took 224.34 ms. Allocated memory is still 157.3 MB. Free memory was 110.4 MB in the beginning and 138.7 MB in the end (delta: -28.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:41,159 INFO L168 Benchmark]: RCFGBuilder took 1571.94 ms. Allocated memory is still 157.3 MB. Free memory was 138.7 MB in the beginning and 132.6 MB in the end (delta: 6.1 MB). Peak memory consumption was 62.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:41,162 INFO L168 Benchmark]: TraceAbstraction took 195841.12 ms. Allocated memory was 157.3 MB in the beginning and 417.3 MB in the end (delta: 260.0 MB). Free memory was 132.6 MB in the beginning and 210.7 MB in the end (delta: -78.1 MB). Peak memory consumption was 180.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:41,168 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 125.8 MB. Free memory was 100.0 MB in the beginning and 100.0 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 732.22 ms. Allocated memory is still 157.3 MB. Free memory was 132.0 MB in the beginning and 110.4 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 224.34 ms. Allocated memory is still 157.3 MB. Free memory was 110.4 MB in the beginning and 138.7 MB in the end (delta: -28.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1571.94 ms. Allocated memory is still 157.3 MB. Free memory was 138.7 MB in the beginning and 132.6 MB in the end (delta: 6.1 MB). Peak memory consumption was 62.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 195841.12 ms. Allocated memory was 157.3 MB in the beginning and 417.3 MB in the end (delta: 260.0 MB). Free memory was 132.6 MB in the beginning and 210.7 MB in the end (delta: -78.1 MB). Peak memory consumption was 180.9 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L182] int pumpRunning = 0; [L183] int systemActive = 1; [L437] int cleanupTimeShifts = 4; [L737] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L510] int retValue_acc ; [L511] int tmp ; [L515] FCALL select_helpers() [L516] FCALL select_features() [L517] CALL, EXPR valid_product() [L167] int retValue_acc ; [L170] retValue_acc = 1 [L171] return (retValue_acc); [L517] RET, EXPR valid_product() [L517] tmp = valid_product() [L519] COND TRUE \read(tmp) [L521] FCALL setup() [L522] CALL runTest() [L504] CALL test() [L371] int splverifierCounter ; [L372] int tmp ; [L373] int tmp___0 ; [L374] int tmp___1 ; [L375] int tmp___2 ; [L378] splverifierCounter = 0 [L380] COND TRUE 1 [L382] COND TRUE splverifierCounter < 4 [L388] tmp = __VERIFIER_nondet_int() [L390] COND TRUE \read(tmp) [L392] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L392] RET waterRise() [L398] tmp___0 = __VERIFIER_nondet_int() [L400] COND FALSE !(\read(tmp___0)) [L408] tmp___2 = __VERIFIER_nondet_int() [L410] COND TRUE \read(tmp___2) [L412] CALL startSystem() [L364] systemActive = 1 [L412] RET startSystem() [L425] CALL timeShift() [L190] COND FALSE !(\read(pumpRunning)) [L197] COND TRUE \read(systemActive) [L199] CALL processEnvironment() [L245] int tmp ; [L248] COND FALSE !(\read(pumpRunning)) [L263] CALL processEnvironment__wrappee__lowWaterSensor() [L219] int tmp ; [L222] COND FALSE !(\read(pumpRunning)) [L237] FCALL processEnvironment__wrappee__base() [L263] RET processEnvironment__wrappee__lowWaterSensor() [L199] RET processEnvironment() [L205] CALL __utac_acc__Specification4_spec__1() [L543] int tmp ; [L544] int tmp___0 ; [L548] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L548] RET, EXPR getWaterLevel() [L548] tmp = getWaterLevel() [L550] COND FALSE !(tmp == 0) [L205] RET __utac_acc__Specification4_spec__1() [L425] RET timeShift() [L380] COND TRUE 1 [L382] COND TRUE splverifierCounter < 4 [L388] tmp = __VERIFIER_nondet_int() [L390] COND TRUE \read(tmp) [L392] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L392] RET waterRise() [L398] tmp___0 = __VERIFIER_nondet_int() [L400] COND FALSE !(\read(tmp___0)) [L408] tmp___2 = __VERIFIER_nondet_int() [L410] COND TRUE \read(tmp___2) [L412] CALL startSystem() [L364] systemActive = 1 [L412] RET startSystem() [L425] CALL timeShift() [L190] COND FALSE !(\read(pumpRunning)) [L197] COND TRUE \read(systemActive) [L199] CALL processEnvironment() [L245] int tmp ; [L248] COND FALSE !(\read(pumpRunning)) [L263] CALL processEnvironment__wrappee__lowWaterSensor() [L219] int tmp ; [L222] COND FALSE !(\read(pumpRunning)) [L237] FCALL processEnvironment__wrappee__base() [L263] RET processEnvironment__wrappee__lowWaterSensor() [L199] RET processEnvironment() [L205] CALL __utac_acc__Specification4_spec__1() [L543] int tmp ; [L544] int tmp___0 ; [L548] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L548] RET, EXPR getWaterLevel() [L548] tmp = getWaterLevel() [L550] COND TRUE tmp == 0 [L552] CALL, EXPR isPumpRunning() [L297] int retValue_acc ; [L300] retValue_acc = pumpRunning [L301] return (retValue_acc); [L552] RET, EXPR isPumpRunning() [L552] tmp___0 = isPumpRunning() [L554] COND TRUE \read(tmp___0) [L556] CALL __automaton_fail() [L537] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product22.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 632 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 195.7s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 24.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1126 SDtfs, 2220 SDslu, 2092 SDs, 0 SdLazy, 4349 SolverSat, 727 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 13.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=493occurred 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: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 464 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...