/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_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:09:54,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:09:54,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:09:55,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:09:55,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:09:55,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:09:55,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:09:55,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:09:55,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:09:55,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:09:55,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:09:55,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:09:55,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:09:55,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:09:55,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:09:55,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:09:55,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:09:55,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:09:55,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:09:55,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:09:55,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:09:55,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:09:55,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:09:55,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:09:55,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:09:55,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:09:55,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:09:55,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:09:55,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:09:55,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:09:55,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:09:55,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:09:55,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:09:55,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:09:55,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:09:55,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:09:55,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:09:55,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:09:55,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:09:55,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:09:55,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:09:55,133 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 20:09:55,149 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:09:55,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:09:55,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:09:55,152 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:09:55,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:09:55,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:09:55,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:09:55,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:09:55,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:09:55,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:09:55,154 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:09:55,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:09:55,155 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:09:55,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:09:55,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:09:55,155 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:09:55,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:09:55,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:09:55,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:09:55,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:09:55,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:09:55,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:09:55,157 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:09:55,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:09:55,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:09:55,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:09:55,648 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:09:55,651 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:09:55,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-10-23 20:09:55,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99ed46f3d/8fa9dcbb29ad44d4aba54669834992f2/FLAGf87f3b9a3 [2020-10-23 20:09:56,627 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:09:56,628 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-10-23 20:09:56,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99ed46f3d/8fa9dcbb29ad44d4aba54669834992f2/FLAGf87f3b9a3 [2020-10-23 20:09:56,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99ed46f3d/8fa9dcbb29ad44d4aba54669834992f2 [2020-10-23 20:09:56,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:09:56,962 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:09:56,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:09:56,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:09:56,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:09:56,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:09:56" (1/1) ... [2020-10-23 20:09:56,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f45a0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:56, skipping insertion in model container [2020-10-23 20:09:56,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:09:56" (1/1) ... [2020-10-23 20:09:56,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:09:57,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:09:57,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:09:57,592 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:09:57,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:09:57,823 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:09:57,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:57 WrapperNode [2020-10-23 20:09:57,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:09:57,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:09:57,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:09:57,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:09:57,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:57" (1/1) ... [2020-10-23 20:09:57,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:57" (1/1) ... [2020-10-23 20:09:57,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:57" (1/1) ... [2020-10-23 20:09:57,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:57" (1/1) ... [2020-10-23 20:09:57,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:57" (1/1) ... [2020-10-23 20:09:57,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:57" (1/1) ... [2020-10-23 20:09:57,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:57" (1/1) ... [2020-10-23 20:09:57,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:09:57,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:09:57,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:09:57,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:09:57,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:57" (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 20:09:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:09:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:09:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:09:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:09:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:09:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:09:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:09:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:09:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:09:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:09:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:09:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:09:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:09:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:09:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:09:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:09:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:09:58,093 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:09:58,093 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:09:58,093 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:09:58,094 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:09:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:09:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:09:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:09:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:09:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:09:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:09:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:09:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:09:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:09:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:09:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:09:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:09:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:09:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:09:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:09:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:09:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:09:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:09:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:09:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:09:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:09:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:09:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:09:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:09:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:09:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:09:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:09:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:09:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:09:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:09:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:09:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:09:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:09:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:09:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:09:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:09:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:09:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:09:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:09:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:09:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:09:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:09:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:09:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:09:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:09:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:09:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:09:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:09:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:09:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:09:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:09:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:09:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:09:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:09:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:09:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:09:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:09:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:09:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:09:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:09:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:09:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:09:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:09:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:09:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:09:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:09:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:09:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:09:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:09:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:09:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:09:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:09:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:10:00,514 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:10:00,515 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:10:00,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:10:00 BoogieIcfgContainer [2020-10-23 20:10:00,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:10:00,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:10:00,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:10:00,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:10:00,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:09:56" (1/3) ... [2020-10-23 20:10:00,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6826143a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:10:00, skipping insertion in model container [2020-10-23 20:10:00,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:57" (2/3) ... [2020-10-23 20:10:00,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6826143a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:10:00, skipping insertion in model container [2020-10-23 20:10:00,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:10:00" (3/3) ... [2020-10-23 20:10:00,535 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2020-10-23 20:10:00,555 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:10:00,565 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:10:00,586 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:10:00,645 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:10:00,646 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:10:00,647 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:10:00,647 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:10:00,647 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:10:00,648 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:10:00,649 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:10:00,649 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:10:00,699 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states. [2020-10-23 20:10:00,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:10:00,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:00,756 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 20:10:00,760 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 20:10:00,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:00,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1277039513, now seen corresponding path program 1 times [2020-10-23 20:10:00,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:00,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349378701] [2020-10-23 20:10:00,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:00,906 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:02,312 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:02,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:02,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:02,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:02,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:02,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:02,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:10:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:02,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:10:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:02,620 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 20:10:02,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349378701] [2020-10-23 20:10:02,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:02,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:10:02,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683090811] [2020-10-23 20:10:02,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:10:02,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:02,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:10:02,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:10:02,653 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 3 states. [2020-10-23 20:10:05,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:05,707 INFO L93 Difference]: Finished difference Result 501 states and 596 transitions. [2020-10-23 20:10:05,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:10:05,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:10:05,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:05,757 INFO L225 Difference]: With dead ends: 501 [2020-10-23 20:10:05,758 INFO L226 Difference]: Without dead ends: 310 [2020-10-23 20:10:05,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:10:05,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-10-23 20:10:05,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 267. [2020-10-23 20:10:05,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-10-23 20:10:05,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 290 transitions. [2020-10-23 20:10:05,979 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 290 transitions. Word has length 148 [2020-10-23 20:10:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:05,981 INFO L481 AbstractCegarLoop]: Abstraction has 267 states and 290 transitions. [2020-10-23 20:10:05,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:10:05,982 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 290 transitions. [2020-10-23 20:10:05,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:10:05,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:05,987 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 20:10:05,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:10:05,988 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 20:10:05,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:05,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1272205933, now seen corresponding path program 1 times [2020-10-23 20:10:05,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:05,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66956814] [2020-10-23 20:10:05,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:05,996 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:06,945 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:06,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:10:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:10:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,144 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 20:10:07,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66956814] [2020-10-23 20:10:07,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:07,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:10:07,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885825500] [2020-10-23 20:10:07,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:10:07,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:07,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:10:07,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:10:07,151 INFO L87 Difference]: Start difference. First operand 267 states and 290 transitions. Second operand 4 states. [2020-10-23 20:10:08,752 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:10:10,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:10,817 INFO L93 Difference]: Finished difference Result 409 states and 459 transitions. [2020-10-23 20:10:10,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:10:10,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:10:10,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:10,824 INFO L225 Difference]: With dead ends: 409 [2020-10-23 20:10:10,824 INFO L226 Difference]: Without dead ends: 293 [2020-10-23 20:10:10,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:10:10,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-23 20:10:10,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 257. [2020-10-23 20:10:10,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-23 20:10:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 277 transitions. [2020-10-23 20:10:10,944 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 277 transitions. Word has length 149 [2020-10-23 20:10:10,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:10,946 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 277 transitions. [2020-10-23 20:10:10,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:10:10,946 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 277 transitions. [2020-10-23 20:10:10,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:10:10,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:10,949 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 20:10:10,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:10:10,950 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 20:10:10,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:10,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1772844614, now seen corresponding path program 1 times [2020-10-23 20:10:10,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:10,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009830368] [2020-10-23 20:10:10,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:10,956 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,778 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:11,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:10:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:10:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:12,020 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 20:10:12,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009830368] [2020-10-23 20:10:12,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:12,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:10:12,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944023576] [2020-10-23 20:10:12,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:10:12,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:12,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:10:12,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:10:12,026 INFO L87 Difference]: Start difference. First operand 257 states and 277 transitions. Second operand 9 states. [2020-10-23 20:10:13,163 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:14,109 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:10:14,852 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:10:15,640 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:16,401 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:17,166 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:19,380 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:10:23,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:23,924 INFO L93 Difference]: Finished difference Result 673 states and 773 transitions. [2020-10-23 20:10:23,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:10:23,926 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:10:23,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:23,933 INFO L225 Difference]: With dead ends: 673 [2020-10-23 20:10:23,933 INFO L226 Difference]: Without dead ends: 531 [2020-10-23 20:10:23,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:10:23,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-10-23 20:10:24,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 462. [2020-10-23 20:10:24,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-10-23 20:10:24,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 516 transitions. [2020-10-23 20:10:24,239 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 516 transitions. Word has length 158 [2020-10-23 20:10:24,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:24,240 INFO L481 AbstractCegarLoop]: Abstraction has 462 states and 516 transitions. [2020-10-23 20:10:24,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:10:24,240 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 516 transitions. [2020-10-23 20:10:24,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:10:24,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:24,244 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 20:10:24,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:10:24,244 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 20:10:24,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:24,245 INFO L82 PathProgramCache]: Analyzing trace with hash -496813333, now seen corresponding path program 1 times [2020-10-23 20:10:24,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:24,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514870281] [2020-10-23 20:10:24,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:24,250 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:25,123 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:25,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:25,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:25,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:25,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:25,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:25,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:10:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:25,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:10:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:25,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:10:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:25,447 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 20:10:25,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514870281] [2020-10-23 20:10:25,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:25,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:10:25,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668016461] [2020-10-23 20:10:25,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:10:25,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:25,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:10:25,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:10:25,450 INFO L87 Difference]: Start difference. First operand 462 states and 516 transitions. Second operand 14 states. [2020-10-23 20:10:26,678 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:27,677 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:10:28,439 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:10:29,237 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:30,038 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:30,788 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:32,390 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:10:35,269 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:36,250 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:37,452 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:38,347 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:10:39,104 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:39,880 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:10:40,657 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:10:41,460 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:42,232 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:43,391 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:44,332 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:10:45,181 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:46,135 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:50,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:50,402 INFO L93 Difference]: Finished difference Result 1583 states and 1986 transitions. [2020-10-23 20:10:50,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:10:50,403 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:10:50,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:50,417 INFO L225 Difference]: With dead ends: 1583 [2020-10-23 20:10:50,417 INFO L226 Difference]: Without dead ends: 1236 [2020-10-23 20:10:50,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:10:50,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2020-10-23 20:10:51,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1101. [2020-10-23 20:10:51,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1101 states. [2020-10-23 20:10:51,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1301 transitions. [2020-10-23 20:10:51,165 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1301 transitions. Word has length 167 [2020-10-23 20:10:51,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:51,166 INFO L481 AbstractCegarLoop]: Abstraction has 1101 states and 1301 transitions. [2020-10-23 20:10:51,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:10:51,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1301 transitions. [2020-10-23 20:10:51,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 20:10:51,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:51,173 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 20:10:51,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:10:51,174 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 20:10:51,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:51,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1368820342, now seen corresponding path program 1 times [2020-10-23 20:10:51,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:51,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796809661] [2020-10-23 20:10:51,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:51,180 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:51,894 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:51,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:51,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:51,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:51,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:51,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:52,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:10:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:52,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:10:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:52,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:10:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:52,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 20:10:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:52,115 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 20:10:52,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796809661] [2020-10-23 20:10:52,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:52,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:10:52,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877792932] [2020-10-23 20:10:52,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:10:52,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:52,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:10:52,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:10:52,119 INFO L87 Difference]: Start difference. First operand 1101 states and 1301 transitions. Second operand 6 states. [2020-10-23 20:10:53,373 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:58,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:58,220 INFO L93 Difference]: Finished difference Result 2536 states and 3184 transitions. [2020-10-23 20:10:58,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 20:10:58,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-10-23 20:10:58,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:58,242 INFO L225 Difference]: With dead ends: 2536 [2020-10-23 20:10:58,243 INFO L226 Difference]: Without dead ends: 1550 [2020-10-23 20:10:58,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:10:58,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2020-10-23 20:10:59,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1426. [2020-10-23 20:10:59,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-10-23 20:10:59,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1682 transitions. [2020-10-23 20:10:59,029 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1682 transitions. Word has length 172 [2020-10-23 20:10:59,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:59,030 INFO L481 AbstractCegarLoop]: Abstraction has 1426 states and 1682 transitions. [2020-10-23 20:10:59,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:10:59,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1682 transitions. [2020-10-23 20:10:59,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 20:10:59,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:59,038 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 20:10:59,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:10:59,039 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 20:10:59,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:59,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1826924304, now seen corresponding path program 1 times [2020-10-23 20:10:59,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:59,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83578698] [2020-10-23 20:10:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:59,340 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:59,490 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-23 20:10:59,775 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:59,916 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-23 20:11:00,230 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:11:00,368 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-23 20:11:00,711 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:11:00,874 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-23 20:11:01,188 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:11:01,326 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-23 20:11:01,661 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:11:01,829 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-23 20:11:02,118 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:11:02,244 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-23 20:11:02,544 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:11:02,678 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-23 20:11:03,020 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:11:03,176 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-23 20:11:03,487 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:11:03,627 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-23 20:11:03,969 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:11:04,119 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-23 20:11:04,455 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:11:04,596 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-23 20:11:04,911 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:11:05,063 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-23 20:11:05,399 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:11:05,535 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-23 20:11:06,211 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:06,830 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:07,380 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:11:07,950 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:11:08,621 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:11:09,259 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:11:09,834 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:10,400 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:11:10,404 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:11,003 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:11:11,598 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:11:12,201 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:12,769 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:13,346 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:13,927 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:14,521 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:11:15,102 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:15,105 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:15,713 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:11:16,323 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:11:16,930 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:11:17,524 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:11:18,095 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:11:18,731 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:11:19,355 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:11:19,972 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:11:19,975 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:22,879 WARN L193 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:11:22,899 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:25,907 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:11:25,915 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:28,757 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:11:31,712 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:11:31,719 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:33,778 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:11:36,613 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:11:36,620 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:39,590 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:11:39,595 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:41,028 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:11:41,033 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:41,038 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:43,823 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:11:46,614 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:11:46,619 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:49,351 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:52,076 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:52,081 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:54,884 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:11:54,890 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:56,200 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:11:56,206 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:59,066 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:12:01,783 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:12:01,789 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:01,793 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:04,565 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:12:04,569 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:07,314 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:12:07,320 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:10,092 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:12:10,095 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:11,500 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:12:11,505 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:14,296 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:12:14,301 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:17,045 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:12:19,841 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:12:22,611 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:12:22,614 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:22,620 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:25,299 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:12:25,304 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:26,854 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:12:29,657 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:12:29,662 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:32,338 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:12:32,344 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:35,103 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:12:35,108 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:36,584 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:12:36,587 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:39,335 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:12:39,338 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:42,079 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:12:42,084 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:42,087 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:42,690 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:43,319 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:43,970 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:44,626 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:45,257 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:45,899 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:46,520 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:47,140 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:47,142 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:49,958 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:49,961 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:52,753 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:52,758 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:55,559 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:58,375 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:01,144 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:02,741 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:02,745 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:05,627 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:05,633 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:07,685 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:07,691 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:07,696 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:08,273 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:08,890 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:09,500 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:10,126 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:10,710 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:11,287 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:11,876 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:12,452 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:12,454 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:15,206 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:15,209 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:17,970 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:17,974 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:20,848 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:20,853 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:23,760 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:23,764 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:26,310 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:29,156 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:29,160 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:32,165 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:34,980 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:34,983 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:34,987 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:37,825 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:37,829 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:40,637 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:40,641 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:43,447 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:43,450 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:46,386 WARN L193 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:46,390 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:49,255 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:49,258 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:52,059 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:52,062 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:54,095 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:54,114 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:56,297 WARN L193 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:56,301 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:56,305 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:59,239 WARN L193 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:59,243 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:02,188 WARN L193 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:02,191 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:04,388 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:04,391 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:07,263 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:10,164 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:10,168 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:13,054 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:13,058 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:16,019 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:16,023 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:18,936 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:18,940 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:18,943 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:19,590 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:14:20,237 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:14:20,889 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:21,529 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:14:22,162 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:14:22,798 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:14:23,444 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:24,102 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:24,105 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:14:24,566 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:14:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:14:24,880 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:14:25,086 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:14:25,086 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:14:25,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:14:25,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:14:25 BoogieIcfgContainer [2020-10-23 20:14:25,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:14:25,124 INFO L168 Benchmark]: Toolchain (without parser) took 268169.84 ms. Allocated memory was 151.0 MB in the beginning and 532.7 MB in the end (delta: 381.7 MB). Free memory was 126.3 MB in the beginning and 176.2 MB in the end (delta: -49.9 MB). Peak memory consumption was 332.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:25,125 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 235.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:14:25,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.89 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 104.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:25,126 INFO L168 Benchmark]: Boogie Preprocessor took 148.66 ms. Allocated memory is still 151.0 MB. Free memory was 104.8 MB in the beginning and 101.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:25,127 INFO L168 Benchmark]: RCFGBuilder took 2544.07 ms. Allocated memory is still 151.0 MB. Free memory was 101.0 MB in the beginning and 76.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 55.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:25,127 INFO L168 Benchmark]: TraceAbstraction took 264600.86 ms. Allocated memory was 151.0 MB in the beginning and 532.7 MB in the end (delta: 381.7 MB). Free memory was 76.4 MB in the beginning and 176.2 MB in the end (delta: -99.8 MB). Peak memory consumption was 281.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:25,130 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 235.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 856.89 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 104.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.66 ms. Allocated memory is still 151.0 MB. Free memory was 104.8 MB in the beginning and 101.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2544.07 ms. Allocated memory is still 151.0 MB. Free memory was 101.0 MB in the beginning and 76.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 55.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 264600.86 ms. Allocated memory was 151.0 MB in the beginning and 532.7 MB in the end (delta: 381.7 MB). Free memory was 76.4 MB in the beginning and 176.2 MB in the end (delta: -99.8 MB). Peak memory consumption was 281.8 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: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L526] int pumpRunning = 0; [L527] int systemActive = 1; [L730] int waterLevel = 1; [L731] int methaneLevelCritical = 0; [L824] int cleanupTimeShifts = 4; [L897] int retValue_acc ; [L898] int tmp ; [L902] FCALL select_helpers() [L903] FCALL select_features() [L904] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L904] RET, EXPR valid_product() [L904] tmp = valid_product() [L906] COND TRUE \read(tmp) [L908] FCALL setup() [L909] CALL runTest() [L891] CALL test() [L452] int splverifierCounter ; [L453] int tmp ; [L454] int tmp___0 ; [L455] int tmp___1 ; [L456] int tmp___2 ; [L459] splverifierCounter = 0 [L461] COND TRUE 1 [L463] COND TRUE splverifierCounter < 4 [L469] tmp = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp) [L473] CALL waterRise() [L748] COND TRUE waterLevel < 2 [L749] waterLevel = waterLevel + 1 [L473] RET waterRise() [L479] tmp___0 = __VERIFIER_nondet_int() [L481] COND FALSE !(\read(tmp___0)) [L489] tmp___2 = __VERIFIER_nondet_int() [L491] COND FALSE !(\read(tmp___2)) [L495] tmp___1 = __VERIFIER_nondet_int() [L497] COND TRUE \read(tmp___1) [L499] CALL stopSystem() [L708] COND FALSE !(\read(pumpRunning)) [L715] systemActive = 0 [L499] RET stopSystem() [L506] CALL timeShift() [L534] COND FALSE !(\read(pumpRunning)) [L541] COND FALSE !(\read(systemActive)) [L549] CALL __utac_acc__Specification4_spec__1() [L921] int tmp ; [L922] int tmp___0 ; [L926] CALL, EXPR getWaterLevel() [L801] int retValue_acc ; [L804] retValue_acc = waterLevel [L805] return (retValue_acc); [L926] RET, EXPR getWaterLevel() [L926] tmp = getWaterLevel() [L928] COND FALSE !(tmp == 0) [L549] RET __utac_acc__Specification4_spec__1() [L506] RET timeShift() [L461] COND TRUE 1 [L463] COND TRUE splverifierCounter < 4 [L469] tmp = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp) [L473] CALL waterRise() [L748] COND TRUE waterLevel < 2 [L749] waterLevel = waterLevel + 1 [L473] RET waterRise() [L479] tmp___0 = __VERIFIER_nondet_int() [L481] COND FALSE !(\read(tmp___0)) [L489] tmp___2 = __VERIFIER_nondet_int() [L491] COND TRUE \read(tmp___2) [L506] CALL timeShift() [L534] COND FALSE !(\read(pumpRunning)) [L541] COND FALSE !(\read(systemActive)) [L549] CALL __utac_acc__Specification4_spec__1() [L921] int tmp ; [L922] int tmp___0 ; [L926] CALL, EXPR getWaterLevel() [L801] int retValue_acc ; [L804] retValue_acc = waterLevel [L805] return (retValue_acc); [L926] RET, EXPR getWaterLevel() [L926] tmp = getWaterLevel() [L928] COND TRUE tmp == 0 [L930] CALL, EXPR isPumpRunning() [L641] int retValue_acc ; [L644] retValue_acc = pumpRunning [L645] return (retValue_acc); [L930] RET, EXPR isPumpRunning() [L930] tmp___0 = isPumpRunning() [L932] COND TRUE \read(tmp___0) [L934] CALL __automaton_fail() [L724] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product39.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 637 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 264.4s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 49.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1256 SDtfs, 2268 SDslu, 2022 SDs, 0 SdLazy, 4934 SolverSat, 796 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 25.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1426occurred 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! Received shutdown request...