/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_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:12:30,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:12:30,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:12:31,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:12:31,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:12:31,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:12:31,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:12:31,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:12:31,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:12:31,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:12:31,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:12:31,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:12:31,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:12:31,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:12:31,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:12:31,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:12:31,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:12:31,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:12:31,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:12:31,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:12:31,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:12:31,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:12:31,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:12:31,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:12:31,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:12:31,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:12:31,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:12:31,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:12:31,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:12:31,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:12:31,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:12:31,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:12:31,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:12:31,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:12:31,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:12:31,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:12:31,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:12:31,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:12:31,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:12:31,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:12:31,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:12:31,129 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 20:12:31,153 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:12:31,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:12:31,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:12:31,159 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:12:31,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:12:31,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:12:31,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:12:31,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:12:31,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:12:31,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:12:31,161 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:12:31,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:12:31,162 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:12:31,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:12:31,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:12:31,163 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:12:31,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:12:31,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:12:31,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:12:31,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:12:31,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:12:31,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:12:31,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:12:31,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:12:31,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:12:31,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:12:31,670 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:12:31,671 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:12:31,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-10-23 20:12:31,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b80d41666/23cee067133d4963ab76fac7a4d92e50/FLAGb2a6c66fe [2020-10-23 20:12:32,588 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:12:32,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-10-23 20:12:32,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b80d41666/23cee067133d4963ab76fac7a4d92e50/FLAGb2a6c66fe [2020-10-23 20:12:32,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b80d41666/23cee067133d4963ab76fac7a4d92e50 [2020-10-23 20:12:32,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:12:32,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:12:32,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:12:32,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:12:32,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:12:32,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:12:32" (1/1) ... [2020-10-23 20:12:32,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e439ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:32, skipping insertion in model container [2020-10-23 20:12:32,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:12:32" (1/1) ... [2020-10-23 20:12:32,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:12:33,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:12:33,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:12:33,538 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:12:33,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:12:33,754 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:12:33,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:33 WrapperNode [2020-10-23 20:12:33,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:12:33,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:12:33,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:12:33,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:12:33,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:33" (1/1) ... [2020-10-23 20:12:33,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:33" (1/1) ... [2020-10-23 20:12:33,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:33" (1/1) ... [2020-10-23 20:12:33,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:33" (1/1) ... [2020-10-23 20:12:33,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:33" (1/1) ... [2020-10-23 20:12:33,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:33" (1/1) ... [2020-10-23 20:12:33,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:33" (1/1) ... [2020-10-23 20:12:33,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:12:33,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:12:33,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:12:33,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:12:33,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:33" (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 20:12:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:12:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:12:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:12:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:12:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:12:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:12:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:12:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:12:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:12:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:12:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:12:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:12:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:12:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:12:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:12:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:12:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:12:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:12:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:12:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:12:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:12:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:12:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:12:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:12:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:12:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:12:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:12:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:12:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:12:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:12:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:12:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:12:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:12:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:12:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:12:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:12:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:12:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:12:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:12:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:12:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:12:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:12:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:12:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:12:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:12:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:12:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:12:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:12:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:12:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:12:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:12:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:12:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:12:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:12:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:12:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:12:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:12:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:12:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:12:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:12:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:12:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:12:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:12:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:12:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:12:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:12:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:12:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:12:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:12:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:12:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:12:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:12:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:12:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:12:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:12:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:12:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:12:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:12:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:12:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:12:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:12:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:12:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:12:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:12:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:12:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:12:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:12:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:12:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:12:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:12:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:12:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:12:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:12:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:12:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:12:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:12:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:12:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:12:35,504 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:12:35,504 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:12:35,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:12:35 BoogieIcfgContainer [2020-10-23 20:12:35,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:12:35,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:12:35,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:12:35,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:12:35,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:12:32" (1/3) ... [2020-10-23 20:12:35,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cdfd48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:12:35, skipping insertion in model container [2020-10-23 20:12:35,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:33" (2/3) ... [2020-10-23 20:12:35,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cdfd48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:12:35, skipping insertion in model container [2020-10-23 20:12:35,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:12:35" (3/3) ... [2020-10-23 20:12:35,518 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2020-10-23 20:12:35,531 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:12:35,538 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:12:35,552 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:12:35,578 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:12:35,579 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:12:35,579 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:12:35,579 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:12:35,579 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:12:35,579 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:12:35,579 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:12:35,579 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:12:35,604 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states. [2020-10-23 20:12:35,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:12:35,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:35,626 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 20:12:35,626 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 20:12:35,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:35,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1530743369, now seen corresponding path program 1 times [2020-10-23 20:12:35,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:35,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816237054] [2020-10-23 20:12:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:35,731 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:36,563 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:36,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:36,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:36,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:36,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:36,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:36,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:12:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:36,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:12:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:36,772 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 20:12:36,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816237054] [2020-10-23 20:12:36,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:36,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:12:36,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683351001] [2020-10-23 20:12:36,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:12:36,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:36,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:12:36,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:12:36,819 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 3 states. [2020-10-23 20:12:38,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:38,855 INFO L93 Difference]: Finished difference Result 513 states and 610 transitions. [2020-10-23 20:12:38,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:12:38,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:12:38,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:38,876 INFO L225 Difference]: With dead ends: 513 [2020-10-23 20:12:38,876 INFO L226 Difference]: Without dead ends: 316 [2020-10-23 20:12:38,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:12:38,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-10-23 20:12:39,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 273. [2020-10-23 20:12:39,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-10-23 20:12:39,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 297 transitions. [2020-10-23 20:12:39,083 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 297 transitions. Word has length 148 [2020-10-23 20:12:39,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:39,084 INFO L481 AbstractCegarLoop]: Abstraction has 273 states and 297 transitions. [2020-10-23 20:12:39,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:12:39,085 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 297 transitions. [2020-10-23 20:12:39,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:12:39,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:39,090 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 20:12:39,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:12:39,091 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 20:12:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:39,091 INFO L82 PathProgramCache]: Analyzing trace with hash 979662057, now seen corresponding path program 1 times [2020-10-23 20:12:39,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:39,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525115429] [2020-10-23 20:12:39,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:39,097 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:39,662 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:39,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:39,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:39,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:39,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:39,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:39,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:12:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:39,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:12:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:39,761 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 20:12:39,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525115429] [2020-10-23 20:12:39,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:39,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:12:39,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780944358] [2020-10-23 20:12:39,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:12:39,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:39,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:12:39,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:12:39,766 INFO L87 Difference]: Start difference. First operand 273 states and 297 transitions. Second operand 4 states. [2020-10-23 20:12:40,641 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:12:42,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:42,015 INFO L93 Difference]: Finished difference Result 421 states and 473 transitions. [2020-10-23 20:12:42,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:12:42,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:12:42,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:42,020 INFO L225 Difference]: With dead ends: 421 [2020-10-23 20:12:42,021 INFO L226 Difference]: Without dead ends: 299 [2020-10-23 20:12:42,023 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 20:12:42,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-10-23 20:12:42,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 263. [2020-10-23 20:12:42,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-23 20:12:42,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 284 transitions. [2020-10-23 20:12:42,138 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 284 transitions. Word has length 149 [2020-10-23 20:12:42,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:42,139 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 284 transitions. [2020-10-23 20:12:42,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:12:42,139 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 284 transitions. [2020-10-23 20:12:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:12:42,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:42,142 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] [2020-10-23 20:12:42,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:12:42,143 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 20:12:42,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:42,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1657624866, now seen corresponding path program 1 times [2020-10-23 20:12:42,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:42,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333219887] [2020-10-23 20:12:42,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:42,148 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:42,699 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:42,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:42,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:42,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:42,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:42,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:42,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:12:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:42,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:12:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:42,876 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 20:12:42,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333219887] [2020-10-23 20:12:42,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:42,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:12:42,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369535508] [2020-10-23 20:12:42,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:12:42,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:42,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:12:42,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:12:42,879 INFO L87 Difference]: Start difference. First operand 263 states and 284 transitions. Second operand 9 states. [2020-10-23 20:12:43,755 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:44,243 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:12:44,678 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:12:45,095 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:45,538 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:45,956 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:47,288 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:12:50,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:50,292 INFO L93 Difference]: Finished difference Result 691 states and 794 transitions. [2020-10-23 20:12:50,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:12:50,297 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:12:50,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:50,307 INFO L225 Difference]: With dead ends: 691 [2020-10-23 20:12:50,308 INFO L226 Difference]: Without dead ends: 543 [2020-10-23 20:12:50,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:12:50,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-10-23 20:12:50,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 474. [2020-10-23 20:12:50,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-10-23 20:12:50,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 530 transitions. [2020-10-23 20:12:50,567 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 530 transitions. Word has length 158 [2020-10-23 20:12:50,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:50,568 INFO L481 AbstractCegarLoop]: Abstraction has 474 states and 530 transitions. [2020-10-23 20:12:50,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:12:50,569 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 530 transitions. [2020-10-23 20:12:50,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:12:50,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:50,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:12:50,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:12:50,573 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 20:12:50,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:50,574 INFO L82 PathProgramCache]: Analyzing trace with hash -608002673, now seen corresponding path program 1 times [2020-10-23 20:12:50,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:50,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567496200] [2020-10-23 20:12:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:50,578 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:51,163 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:51,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:51,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:51,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:51,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:51,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:51,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:12:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:51,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:12:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:51,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:12:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:51,532 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 20:12:51,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567496200] [2020-10-23 20:12:51,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:51,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:12:51,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875979036] [2020-10-23 20:12:51,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:12:51,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:51,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:12:51,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:12:51,536 INFO L87 Difference]: Start difference. First operand 474 states and 530 transitions. Second operand 14 states. [2020-10-23 20:12:52,273 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:52,808 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:12:53,240 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:12:53,655 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:54,082 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:54,502 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:55,447 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:12:57,207 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:57,710 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:58,364 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:58,818 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:12:59,251 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:59,635 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:13:00,023 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:13:00,443 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:13:00,833 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:13:01,428 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:13:01,994 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:13:02,472 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:13:03,090 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:13:05,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:13:05,725 INFO L93 Difference]: Finished difference Result 1631 states and 2042 transitions. [2020-10-23 20:13:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:13:05,731 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:13:05,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:13:05,742 INFO L225 Difference]: With dead ends: 1631 [2020-10-23 20:13:05,742 INFO L226 Difference]: Without dead ends: 1272 [2020-10-23 20:13:05,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:13:05,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2020-10-23 20:13:06,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1137. [2020-10-23 20:13:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1137 states. [2020-10-23 20:13:06,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1343 transitions. [2020-10-23 20:13:06,449 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1343 transitions. Word has length 167 [2020-10-23 20:13:06,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:13:06,451 INFO L481 AbstractCegarLoop]: Abstraction has 1137 states and 1343 transitions. [2020-10-23 20:13:06,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:13:06,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1343 transitions. [2020-10-23 20:13:06,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 20:13:06,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:13:06,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:13:06,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:13:06,460 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 20:13:06,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:13:06,460 INFO L82 PathProgramCache]: Analyzing trace with hash -2061215228, now seen corresponding path program 1 times [2020-10-23 20:13:06,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:13:06,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140744574] [2020-10-23 20:13:06,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:13:06,466 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:13:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:07,005 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:13:07,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:13:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:07,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:13:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:07,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:13:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:07,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:13:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:07,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:13:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:07,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:13:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:07,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:13:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:07,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:13:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:07,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 20:13:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:07,204 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 20:13:07,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140744574] [2020-10-23 20:13:07,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:13:07,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:13:07,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299508596] [2020-10-23 20:13:07,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:13:07,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:13:07,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:13:07,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:13:07,213 INFO L87 Difference]: Start difference. First operand 1137 states and 1343 transitions. Second operand 6 states. [2020-10-23 20:13:07,992 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:13:11,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:13:11,313 INFO L93 Difference]: Finished difference Result 2596 states and 3254 transitions. [2020-10-23 20:13:11,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 20:13:11,314 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-10-23 20:13:11,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:13:11,328 INFO L225 Difference]: With dead ends: 2596 [2020-10-23 20:13:11,328 INFO L226 Difference]: Without dead ends: 1574 [2020-10-23 20:13:11,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:13:11,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2020-10-23 20:13:12,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1450. [2020-10-23 20:13:12,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2020-10-23 20:13:12,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1710 transitions. [2020-10-23 20:13:12,249 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1710 transitions. Word has length 172 [2020-10-23 20:13:12,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:13:12,250 INFO L481 AbstractCegarLoop]: Abstraction has 1450 states and 1710 transitions. [2020-10-23 20:13:12,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:13:12,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1710 transitions. [2020-10-23 20:13:12,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 20:13:12,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:13:12,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:13:12,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:13:12,258 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 20:13:12,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:13:12,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1309121754, now seen corresponding path program 1 times [2020-10-23 20:13:12,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:13:12,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522173554] [2020-10-23 20:13:12,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:13:12,436 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:13:12,753 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:13:12,999 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:13:13,149 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-23 20:13:13,303 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:13:13,540 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:13:13,805 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:13:14,093 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:13:14,348 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:13:14,608 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:13:14,880 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:13:15,137 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:13:15,388 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:13:15,680 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:13:15,949 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:13:16,430 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:16,799 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:13:17,138 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:17,481 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:13:17,849 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:13:18,202 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:18,524 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:18,822 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:18,825 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:19,135 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:19,435 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:19,751 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:20,134 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:20,486 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:13:20,832 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:13:21,148 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:21,468 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:13:21,471 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:21,812 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:13:22,161 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:22,498 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:13:22,858 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:23,201 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:23,538 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:23,871 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:24,224 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:13:24,228 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:24,582 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:24,937 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:25,318 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:25,676 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:26,031 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:26,373 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:26,727 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:27,079 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:27,082 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:29,774 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:29,812 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:32,568 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:33,754 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:34,846 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:34,851 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:37,416 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:37,423 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:40,021 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:40,026 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:41,122 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:43,676 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:43,682 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:43,687 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:46,304 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:48,865 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:13:48,870 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:51,395 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:54,040 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:56,646 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:56,651 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:59,177 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:59,181 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:01,716 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:14:01,720 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:02,955 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:02,962 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:02,969 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:05,540 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:05,545 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:08,138 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:08,146 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:10,795 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:10,799 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:13,356 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:15,927 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:17,335 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:17,340 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:19,978 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:19,982 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:22,665 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:22,673 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:25,206 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:14:25,210 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:26,680 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:26,684 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:29,280 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:14:29,285 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:31,809 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:14:31,812 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:34,416 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:34,421 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:36,994 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:14:36,998 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:38,530 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:38,533 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:41,001 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:14:41,004 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:41,007 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:41,361 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:41,734 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:42,112 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:42,482 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:42,879 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:43,254 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:43,641 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:44,032 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:44,035 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:46,663 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:48,445 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:51,026 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:51,029 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:53,587 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:53,590 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:56,162 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:56,166 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:58,721 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:00,383 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:15:00,387 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:01,757 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:15:01,761 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:01,769 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:02,128 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:15:02,475 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:15:02,836 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:15:03,195 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:15:03,569 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:15:03,963 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:15:04,321 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:15:04,703 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:15:04,706 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:06,617 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:06,621 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:09,193 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:11,753 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:11,757 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:14,285 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:14,289 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:16,803 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:16,807 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:19,370 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:19,374 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:20,739 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:20,743 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:23,334 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:23,337 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:23,341 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:25,925 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:25,928 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:27,574 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:27,577 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:30,156 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:30,160 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:32,796 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:32,800 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:34,646 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:34,650 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:37,232 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:37,235 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:39,779 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:39,782 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:41,318 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:41,323 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:43,897 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:43,901 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:46,454 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:46,457 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:49,007 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:51,636 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:54,008 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:54,012 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:56,631 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:56,634 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:58,529 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:16:01,189 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:16:01,192 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:01,195 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:16:01,946 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:16:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:16:02,277 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:16:02,467 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:16:02,467 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:16:02,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:16:02,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:16:02 BoogieIcfgContainer [2020-10-23 20:16:02,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:16:02,496 INFO L168 Benchmark]: Toolchain (without parser) took 209592.33 ms. Allocated memory was 154.1 MB in the beginning and 702.5 MB in the end (delta: 548.4 MB). Free memory was 129.5 MB in the beginning and 488.7 MB in the end (delta: -359.2 MB). Peak memory consumption was 189.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:02,497 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 154.1 MB. Free memory was 128.5 MB in the beginning and 128.3 MB in the end (delta: 120.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:16:02,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.99 ms. Allocated memory is still 154.1 MB. Free memory was 128.9 MB in the beginning and 107.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:02,498 INFO L168 Benchmark]: Boogie Preprocessor took 136.54 ms. Allocated memory is still 154.1 MB. Free memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: -27.2 MB). Peak memory consumption was 6.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:02,498 INFO L168 Benchmark]: RCFGBuilder took 1614.53 ms. Allocated memory is still 154.1 MB. Free memory was 134.2 MB in the beginning and 87.4 MB in the end (delta: 46.8 MB). Peak memory consumption was 63.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:02,499 INFO L168 Benchmark]: TraceAbstraction took 206985.00 ms. Allocated memory was 154.1 MB in the beginning and 702.5 MB in the end (delta: 548.4 MB). Free memory was 86.9 MB in the beginning and 488.7 MB in the end (delta: -401.9 MB). Peak memory consumption was 146.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:02,501 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 154.1 MB. Free memory was 128.5 MB in the beginning and 128.3 MB in the end (delta: 120.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 839.99 ms. Allocated memory is still 154.1 MB. Free memory was 128.9 MB in the beginning and 107.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 136.54 ms. Allocated memory is still 154.1 MB. Free memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: -27.2 MB). Peak memory consumption was 6.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1614.53 ms. Allocated memory is still 154.1 MB. Free memory was 134.2 MB in the beginning and 87.4 MB in the end (delta: 46.8 MB). Peak memory consumption was 63.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 206985.00 ms. Allocated memory was 154.1 MB in the beginning and 702.5 MB in the end (delta: 548.4 MB). Free memory was 86.9 MB in the beginning and 488.7 MB in the end (delta: -401.9 MB). Peak memory consumption was 146.0 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: [L42] int cleanupTimeShifts = 4; [L180] int waterLevel = 1; [L181] int methaneLevelCritical = 0; [L321] int pumpRunning = 0; [L322] int systemActive = 1; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L309] int retValue_acc ; [L312] retValue_acc = 1 [L313] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L534] int splverifierCounter ; [L535] int tmp ; [L536] int tmp___0 ; [L537] int tmp___1 ; [L538] int tmp___2 ; [L541] splverifierCounter = 0 [L543] COND TRUE 1 [L545] COND TRUE splverifierCounter < 4 [L551] tmp = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp) [L555] CALL waterRise() [L198] COND TRUE waterLevel < 2 [L199] waterLevel = waterLevel + 1 [L555] RET waterRise() [L561] tmp___0 = __VERIFIER_nondet_int() [L563] COND FALSE !(\read(tmp___0)) [L571] tmp___2 = __VERIFIER_nondet_int() [L573] COND FALSE !(\read(tmp___2)) [L577] tmp___1 = __VERIFIER_nondet_int() [L579] COND TRUE \read(tmp___1) [L581] CALL stopSystem() [L521] COND FALSE !(\read(pumpRunning)) [L528] systemActive = 0 [L581] RET stopSystem() [L588] CALL timeShift() [L328] COND FALSE !(\read(pumpRunning)) [L335] COND FALSE !(\read(systemActive)) [L343] CALL __utac_acc__Specification4_spec__1() [L150] int tmp ; [L151] int tmp___0 ; [L155] CALL, EXPR getWaterLevel() [L251] int retValue_acc ; [L254] retValue_acc = waterLevel [L255] return (retValue_acc); [L155] RET, EXPR getWaterLevel() [L155] tmp = getWaterLevel() [L157] COND FALSE !(tmp == 0) [L343] RET __utac_acc__Specification4_spec__1() [L588] RET timeShift() [L543] COND TRUE 1 [L545] COND TRUE splverifierCounter < 4 [L551] tmp = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp) [L555] CALL waterRise() [L198] COND TRUE waterLevel < 2 [L199] waterLevel = waterLevel + 1 [L555] RET waterRise() [L561] tmp___0 = __VERIFIER_nondet_int() [L563] COND FALSE !(\read(tmp___0)) [L571] tmp___2 = __VERIFIER_nondet_int() [L573] COND TRUE \read(tmp___2) [L588] CALL timeShift() [L328] COND FALSE !(\read(pumpRunning)) [L335] COND FALSE !(\read(systemActive)) [L343] CALL __utac_acc__Specification4_spec__1() [L150] int tmp ; [L151] int tmp___0 ; [L155] CALL, EXPR getWaterLevel() [L251] int retValue_acc ; [L254] retValue_acc = waterLevel [L255] return (retValue_acc); [L155] RET, EXPR getWaterLevel() [L155] tmp = getWaterLevel() [L157] COND TRUE tmp == 0 [L159] CALL, EXPR isPumpRunning() [L435] int retValue_acc ; [L438] retValue_acc = pumpRunning [L439] return (retValue_acc); [L159] RET, EXPR isPumpRunning() [L159] tmp___0 = isPumpRunning() [L161] COND TRUE \read(tmp___0) [L163] CALL __automaton_fail() [L604] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product51.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 656 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 206.8s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 30.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1286 SDtfs, 2267 SDslu, 2090 SDs, 0 SdLazy, 5068 SolverSat, 748 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 13.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 407 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...