java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:43,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:43,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:43,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:43,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:43,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:43,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:43,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:43,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:43,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:43,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:43,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:43,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:43,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:43,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:43,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:43,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:43,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:43,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:43,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:43,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:43,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:43,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:43,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:43,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:43,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:43,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:43,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:43,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:43,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:43,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:43,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:43,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:43,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:43,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:43,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:43,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:43,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:43,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:43,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:43,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:43,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:29:43,183 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:43,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:43,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:43,184 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:43,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:43,185 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:43,185 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:43,185 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:43,185 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:43,185 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:43,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:43,186 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:43,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:43,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:43,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:43,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:43,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:43,188 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:43,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:43,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:43,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:43,189 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:43,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:43,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:43,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:43,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:43,190 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:43,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:43,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:43,190 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:43,237 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:43,258 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:43,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:43,263 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:43,264 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:43,265 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-09-20 13:29:43,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc89244aa/7874d44d370e47b5b15a32dc35288a9f/FLAG9be6aabf9 [2019-09-20 13:29:43,855 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:43,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-09-20 13:29:43,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc89244aa/7874d44d370e47b5b15a32dc35288a9f/FLAG9be6aabf9 [2019-09-20 13:29:44,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc89244aa/7874d44d370e47b5b15a32dc35288a9f [2019-09-20 13:29:44,185 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:44,186 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:44,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:44,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:44,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:44,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63939978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44, skipping insertion in model container [2019-09-20 13:29:44,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,204 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:44,270 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:44,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:44,714 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:44,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:44,879 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:44,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44 WrapperNode [2019-09-20 13:29:44,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:44,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:44,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:44,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:44,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:45,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:45,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:45,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:45,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:45,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (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 [2019-09-20 13:29:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:29:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:29:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:29:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:29:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:29:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:29:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:29:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:45,106 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:45,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:45,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:29:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:29:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:29:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:29:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:29:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:29:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:29:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:45,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:45,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:46,316 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:46,317 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:46,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:46 BoogieIcfgContainer [2019-09-20 13:29:46,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:46,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:46,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:46,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:46,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:44" (1/3) ... [2019-09-20 13:29:46,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3197166c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:46, skipping insertion in model container [2019-09-20 13:29:46,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (2/3) ... [2019-09-20 13:29:46,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3197166c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:46, skipping insertion in model container [2019-09-20 13:29:46,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:46" (3/3) ... [2019-09-20 13:29:46,327 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2019-09-20 13:29:46,337 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:46,346 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:46,364 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:46,393 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:46,393 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:46,393 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:46,394 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:46,394 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:46,394 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:46,394 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:46,394 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:46,416 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2019-09-20 13:29:46,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:46,435 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:46,436 INFO L407 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] [2019-09-20 13:29:46,440 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:46,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:46,446 INFO L82 PathProgramCache]: Analyzing trace with hash 252979836, now seen corresponding path program 1 times [2019-09-20 13:29:46,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:46,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:46,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:46,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:46,507 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:46,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:46,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:46,843 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:46,849 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:46,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:46,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:46,870 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 2 states. [2019-09-20 13:29:46,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:46,930 INFO L93 Difference]: Finished difference Result 155 states and 180 transitions. [2019-09-20 13:29:46,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:46,932 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:46,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:46,951 INFO L225 Difference]: With dead ends: 155 [2019-09-20 13:29:46,952 INFO L226 Difference]: Without dead ends: 144 [2019-09-20 13:29:46,956 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:46,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-09-20 13:29:47,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-09-20 13:29:47,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-09-20 13:29:47,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2019-09-20 13:29:47,016 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 46 [2019-09-20 13:29:47,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:47,017 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2019-09-20 13:29:47,017 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:47,017 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2019-09-20 13:29:47,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:47,021 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:47,021 INFO L407 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] [2019-09-20 13:29:47,021 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:47,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:47,022 INFO L82 PathProgramCache]: Analyzing trace with hash -810106616, now seen corresponding path program 1 times [2019-09-20 13:29:47,022 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:47,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:47,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:47,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:47,025 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:47,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:47,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:47,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:47,146 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:47,148 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:47,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:47,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:47,149 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 3 states. [2019-09-20 13:29:47,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:47,178 INFO L93 Difference]: Finished difference Result 135 states and 156 transitions. [2019-09-20 13:29:47,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:47,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:47,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:47,183 INFO L225 Difference]: With dead ends: 135 [2019-09-20 13:29:47,184 INFO L226 Difference]: Without dead ends: 135 [2019-09-20 13:29:47,184 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-09-20 13:29:47,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2019-09-20 13:29:47,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-09-20 13:29:47,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 156 transitions. [2019-09-20 13:29:47,198 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 156 transitions. Word has length 47 [2019-09-20 13:29:47,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:47,199 INFO L475 AbstractCegarLoop]: Abstraction has 135 states and 156 transitions. [2019-09-20 13:29:47,199 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:47,199 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 156 transitions. [2019-09-20 13:29:47,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:29:47,201 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:47,203 INFO L407 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] [2019-09-20 13:29:47,204 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:47,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:47,204 INFO L82 PathProgramCache]: Analyzing trace with hash 2111665897, now seen corresponding path program 1 times [2019-09-20 13:29:47,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:47,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:47,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:47,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:47,207 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:47,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:47,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:47,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:47,386 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:47,386 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:47,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:47,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:47,387 INFO L87 Difference]: Start difference. First operand 135 states and 156 transitions. Second operand 7 states. [2019-09-20 13:29:47,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:47,791 INFO L93 Difference]: Finished difference Result 135 states and 155 transitions. [2019-09-20 13:29:47,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:47,791 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:29:47,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:47,794 INFO L225 Difference]: With dead ends: 135 [2019-09-20 13:29:47,795 INFO L226 Difference]: Without dead ends: 135 [2019-09-20 13:29:47,795 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:29:47,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-09-20 13:29:47,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2019-09-20 13:29:47,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-09-20 13:29:47,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 155 transitions. [2019-09-20 13:29:47,813 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 155 transitions. Word has length 52 [2019-09-20 13:29:47,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:47,814 INFO L475 AbstractCegarLoop]: Abstraction has 135 states and 155 transitions. [2019-09-20 13:29:47,814 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:47,814 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 155 transitions. [2019-09-20 13:29:47,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:29:47,820 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:47,820 INFO L407 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] [2019-09-20 13:29:47,821 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:47,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:47,821 INFO L82 PathProgramCache]: Analyzing trace with hash -2095161910, now seen corresponding path program 1 times [2019-09-20 13:29:47,821 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:47,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:47,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:47,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:47,828 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:47,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:47,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:47,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:29:47,993 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:47,994 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:29:47,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:29:47,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:29:47,995 INFO L87 Difference]: Start difference. First operand 135 states and 155 transitions. Second operand 5 states. [2019-09-20 13:29:48,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:48,519 INFO L93 Difference]: Finished difference Result 236 states and 272 transitions. [2019-09-20 13:29:48,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:29:48,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-09-20 13:29:48,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:48,522 INFO L225 Difference]: With dead ends: 236 [2019-09-20 13:29:48,523 INFO L226 Difference]: Without dead ends: 236 [2019-09-20 13:29:48,523 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:48,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-09-20 13:29:48,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 217. [2019-09-20 13:29:48,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-09-20 13:29:48,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 246 transitions. [2019-09-20 13:29:48,546 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 246 transitions. Word has length 65 [2019-09-20 13:29:48,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:48,546 INFO L475 AbstractCegarLoop]: Abstraction has 217 states and 246 transitions. [2019-09-20 13:29:48,547 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:29:48,547 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 246 transitions. [2019-09-20 13:29:48,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-20 13:29:48,548 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:48,549 INFO L407 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] [2019-09-20 13:29:48,549 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:48,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:48,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1983258682, now seen corresponding path program 1 times [2019-09-20 13:29:48,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:48,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:48,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:48,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:48,553 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:48,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:48,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:48,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:48,650 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:48,652 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:48,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:48,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:48,653 INFO L87 Difference]: Start difference. First operand 217 states and 246 transitions. Second operand 6 states. [2019-09-20 13:29:48,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:48,866 INFO L93 Difference]: Finished difference Result 395 states and 449 transitions. [2019-09-20 13:29:48,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:48,867 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2019-09-20 13:29:48,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:48,871 INFO L225 Difference]: With dead ends: 395 [2019-09-20 13:29:48,871 INFO L226 Difference]: Without dead ends: 395 [2019-09-20 13:29:48,872 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:48,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2019-09-20 13:29:48,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 389. [2019-09-20 13:29:48,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-09-20 13:29:48,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 442 transitions. [2019-09-20 13:29:48,903 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 442 transitions. Word has length 79 [2019-09-20 13:29:48,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:48,904 INFO L475 AbstractCegarLoop]: Abstraction has 389 states and 442 transitions. [2019-09-20 13:29:48,904 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:48,904 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 442 transitions. [2019-09-20 13:29:48,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-20 13:29:48,911 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:48,911 INFO L407 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] [2019-09-20 13:29:48,912 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:48,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:48,912 INFO L82 PathProgramCache]: Analyzing trace with hash -2086163970, now seen corresponding path program 1 times [2019-09-20 13:29:48,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:48,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:48,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:48,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:48,915 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:49,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:49,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:49,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:49,034 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:49,034 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:49,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:49,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:49,035 INFO L87 Difference]: Start difference. First operand 389 states and 442 transitions. Second operand 7 states. [2019-09-20 13:29:49,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:49,731 INFO L93 Difference]: Finished difference Result 421 states and 493 transitions. [2019-09-20 13:29:49,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:29:49,732 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2019-09-20 13:29:49,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:49,735 INFO L225 Difference]: With dead ends: 421 [2019-09-20 13:29:49,736 INFO L226 Difference]: Without dead ends: 421 [2019-09-20 13:29:49,736 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:29:49,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-09-20 13:29:49,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 389. [2019-09-20 13:29:49,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-09-20 13:29:49,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 441 transitions. [2019-09-20 13:29:49,758 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 441 transitions. Word has length 83 [2019-09-20 13:29:49,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:49,758 INFO L475 AbstractCegarLoop]: Abstraction has 389 states and 441 transitions. [2019-09-20 13:29:49,758 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:49,759 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 441 transitions. [2019-09-20 13:29:49,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-20 13:29:49,761 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:49,761 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:49,761 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:49,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:49,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1672866455, now seen corresponding path program 1 times [2019-09-20 13:29:49,762 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:49,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:49,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:49,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:49,765 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:49,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:29:49,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:49,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:49,832 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:49,833 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:49,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:49,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:49,833 INFO L87 Difference]: Start difference. First operand 389 states and 441 transitions. Second operand 6 states. [2019-09-20 13:29:49,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:49,878 INFO L93 Difference]: Finished difference Result 403 states and 455 transitions. [2019-09-20 13:29:49,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:49,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2019-09-20 13:29:49,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:49,882 INFO L225 Difference]: With dead ends: 403 [2019-09-20 13:29:49,883 INFO L226 Difference]: Without dead ends: 403 [2019-09-20 13:29:49,883 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:49,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-09-20 13:29:49,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 399. [2019-09-20 13:29:49,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-09-20 13:29:49,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 451 transitions. [2019-09-20 13:29:49,908 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 451 transitions. Word has length 99 [2019-09-20 13:29:49,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:49,909 INFO L475 AbstractCegarLoop]: Abstraction has 399 states and 451 transitions. [2019-09-20 13:29:49,909 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 451 transitions. [2019-09-20 13:29:49,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-20 13:29:49,911 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:49,911 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:49,911 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:49,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:49,912 INFO L82 PathProgramCache]: Analyzing trace with hash -779380117, now seen corresponding path program 1 times [2019-09-20 13:29:49,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:49,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:49,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:49,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:49,914 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:50,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:29:50,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:50,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:29:50,027 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:50,027 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:29:50,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:29:50,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:50,028 INFO L87 Difference]: Start difference. First operand 399 states and 451 transitions. Second operand 8 states. [2019-09-20 13:29:50,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:50,076 INFO L93 Difference]: Finished difference Result 413 states and 465 transitions. [2019-09-20 13:29:50,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:50,076 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2019-09-20 13:29:50,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:50,079 INFO L225 Difference]: With dead ends: 413 [2019-09-20 13:29:50,080 INFO L226 Difference]: Without dead ends: 413 [2019-09-20 13:29:50,080 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:50,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-09-20 13:29:50,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 407. [2019-09-20 13:29:50,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-09-20 13:29:50,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 459 transitions. [2019-09-20 13:29:50,095 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 459 transitions. Word has length 99 [2019-09-20 13:29:50,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:50,096 INFO L475 AbstractCegarLoop]: Abstraction has 407 states and 459 transitions. [2019-09-20 13:29:50,096 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:29:50,096 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 459 transitions. [2019-09-20 13:29:50,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-20 13:29:50,097 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:50,098 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:50,098 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:50,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:50,098 INFO L82 PathProgramCache]: Analyzing trace with hash -787139476, now seen corresponding path program 1 times [2019-09-20 13:29:50,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:50,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:50,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:50,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:50,101 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:50,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:29:50,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:50,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:29:50,171 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:50,171 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:29:50,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:29:50,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:29:50,172 INFO L87 Difference]: Start difference. First operand 407 states and 459 transitions. Second operand 4 states. [2019-09-20 13:29:50,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:50,399 INFO L93 Difference]: Finished difference Result 826 states and 973 transitions. [2019-09-20 13:29:50,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:29:50,400 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2019-09-20 13:29:50,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:50,405 INFO L225 Difference]: With dead ends: 826 [2019-09-20 13:29:50,405 INFO L226 Difference]: Without dead ends: 826 [2019-09-20 13:29:50,406 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:29:50,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2019-09-20 13:29:50,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 811. [2019-09-20 13:29:50,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2019-09-20 13:29:50,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 941 transitions. [2019-09-20 13:29:50,448 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 941 transitions. Word has length 99 [2019-09-20 13:29:50,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:50,449 INFO L475 AbstractCegarLoop]: Abstraction has 811 states and 941 transitions. [2019-09-20 13:29:50,449 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:29:50,449 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 941 transitions. [2019-09-20 13:29:50,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-20 13:29:50,453 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:50,453 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:50,453 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:50,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:50,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1176915630, now seen corresponding path program 1 times [2019-09-20 13:29:50,454 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:50,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:50,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:50,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:50,457 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:29:50,608 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:29:50,608 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:29:50,609 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 104 with the following transitions: [2019-09-20 13:29:50,611 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [161], [164], [169], [175], [178], [188], [189], [201], [203], [208], [211], [214], [216], [221], [223], [224], [225], [226], [232], [236], [278], [281], [283], [286], [296], [299], [303], [304], [307], [308], [309], [332], [334], [335], [402], [403], [408], [410], [413], [417], [419], [422], [424], [427], [440], [441], [442], [443], [444], [445], [446], [447], [448], [488], [489], [490], [491], [492], [493], [496], [500], [501], [502], [503], [504], [505], [508], [509], [510], [516], [517], [518], [519], [526], [528], [529], [534], [535], [536], [538], [539], [540], [541], [542] [2019-09-20 13:29:50,662 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:29:50,662 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:29:50,740 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:29:50,741 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-20 13:29:50,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:50,746 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:29:50,788 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:29:50,788 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:29:50,792 INFO L420 sIntCurrentIteration]: We unified 102 AI predicates to 102 [2019-09-20 13:29:50,792 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:29:50,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:29:50,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-20 13:29:50,793 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:50,794 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:50,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:50,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:50,794 INFO L87 Difference]: Start difference. First operand 811 states and 941 transitions. Second operand 2 states. [2019-09-20 13:29:50,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:50,795 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:29:50,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:50,795 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 103 [2019-09-20 13:29:50,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:50,795 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:29:50,795 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:50,796 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:50,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:50,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:50,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:50,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:50,797 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2019-09-20 13:29:50,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:50,797 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:50,797 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:50,797 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:50,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:50,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:50 BoogieIcfgContainer [2019-09-20 13:29:50,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:50,808 INFO L168 Benchmark]: Toolchain (without parser) took 6621.00 ms. Allocated memory was 132.6 MB in the beginning and 322.4 MB in the end (delta: 189.8 MB). Free memory was 87.6 MB in the beginning and 147.2 MB in the end (delta: -59.6 MB). Peak memory consumption was 130.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:50,809 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:50,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.56 ms. Allocated memory was 132.6 MB in the beginning and 200.8 MB in the end (delta: 68.2 MB). Free memory was 87.4 MB in the beginning and 164.3 MB in the end (delta: -76.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:50,811 INFO L168 Benchmark]: Boogie Preprocessor took 127.14 ms. Allocated memory is still 200.8 MB. Free memory was 164.3 MB in the beginning and 159.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:50,812 INFO L168 Benchmark]: RCFGBuilder took 1310.65 ms. Allocated memory was 200.8 MB in the beginning and 224.4 MB in the end (delta: 23.6 MB). Free memory was 159.8 MB in the beginning and 189.3 MB in the end (delta: -29.5 MB). Peak memory consumption was 89.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:50,813 INFO L168 Benchmark]: TraceAbstraction took 4485.91 ms. Allocated memory was 224.4 MB in the beginning and 322.4 MB in the end (delta: 98.0 MB). Free memory was 189.3 MB in the beginning and 147.2 MB in the end (delta: 42.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:50,817 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.56 ms. Allocated memory was 132.6 MB in the beginning and 200.8 MB in the end (delta: 68.2 MB). Free memory was 87.4 MB in the beginning and 164.3 MB in the end (delta: -76.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.14 ms. Allocated memory is still 200.8 MB. Free memory was 164.3 MB in the beginning and 159.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1310.65 ms. Allocated memory was 200.8 MB in the beginning and 224.4 MB in the end (delta: 23.6 MB). Free memory was 159.8 MB in the beginning and 189.3 MB in the end (delta: -29.5 MB). Peak memory consumption was 89.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4485.91 ms. Allocated memory was 224.4 MB in the beginning and 322.4 MB in the end (delta: 98.0 MB). Free memory was 189.3 MB in the beginning and 147.2 MB in the end (delta: 42.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 246 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1525 SDtfs, 917 SDslu, 3173 SDs, 0 SdLazy, 1107 SolverSat, 296 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=811occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.0686274509803921 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 82 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 772 NumberOfCodeBlocks, 772 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 762 ConstructedInterpolants, 0 QuantifiedInterpolants, 103070 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...