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_spec2_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:19,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:19,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:19,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:19,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:19,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:19,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:19,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:19,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:19,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:19,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:19,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:19,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:19,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:19,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:19,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:19,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:19,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:19,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:19,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:19,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:19,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:19,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:19,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:19,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:19,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:19,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:19,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:19,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:19,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:19,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:19,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:19,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:19,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:19,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:19,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:19,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:19,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:19,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:19,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:19,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:19,079 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 13:30:19,095 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:19,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:19,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:19,096 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:19,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:19,097 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:19,097 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:19,097 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:19,098 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:19,098 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:19,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:19,099 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:19,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:19,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:19,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:19,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:19,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:19,102 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:19,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:19,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:19,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:19,102 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:19,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:19,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:19,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:19,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:19,103 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:19,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:19,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:19,103 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:19,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:19,175 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:19,179 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:19,181 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:19,181 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:19,182 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product58.cil.c [2019-09-20 13:30:19,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a8cd2b1/cde529eef6404f87890d84efe39a2905/FLAGea6042a00 [2019-09-20 13:30:19,801 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:19,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product58.cil.c [2019-09-20 13:30:19,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a8cd2b1/cde529eef6404f87890d84efe39a2905/FLAGea6042a00 [2019-09-20 13:30:20,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a8cd2b1/cde529eef6404f87890d84efe39a2905 [2019-09-20 13:30:20,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:20,273 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:20,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:20,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:20,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:20,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee1a792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20, skipping insertion in model container [2019-09-20 13:30:20,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,294 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:20,361 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:20,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:20,771 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:20,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:20,930 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:20,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20 WrapperNode [2019-09-20 13:30:20,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:20,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:20,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:20,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:20,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:21,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:21,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:21,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:21,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:21,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:21,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:21,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:21,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (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 13:30:21,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:21,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:21,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:21,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:21,184 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:21,185 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:21,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:21,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:21,186 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:21,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:30:21,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:21,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:21,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:21,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:21,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:21,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:21,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:21,190 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:21,190 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:21,190 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:21,190 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:21,190 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:21,191 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:21,191 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:21,191 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:21,192 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:21,192 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:21,192 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:21,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:30:21,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:21,193 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:21,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:21,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:21,193 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:21,194 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:21,194 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:21,194 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:21,194 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:21,195 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:21,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:21,197 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:21,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:21,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:30:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:21,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:21,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:21,202 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:21,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:21,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:21,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:21,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:21,203 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:21,203 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:21,204 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:21,204 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:21,204 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:21,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:21,206 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:21,206 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:21,206 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:30:21,206 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:21,207 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:21,208 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:21,208 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:21,209 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:21,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:21,209 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:21,209 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:21,209 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:21,209 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:21,209 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:22,483 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:22,483 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:22,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:22 BoogieIcfgContainer [2019-09-20 13:30:22,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:22,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:22,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:22,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:22,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:20" (1/3) ... [2019-09-20 13:30:22,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e7c860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:22, skipping insertion in model container [2019-09-20 13:30:22,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (2/3) ... [2019-09-20 13:30:22,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e7c860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:22, skipping insertion in model container [2019-09-20 13:30:22,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:22" (3/3) ... [2019-09-20 13:30:22,496 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product58.cil.c [2019-09-20 13:30:22,506 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:22,517 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:22,535 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:22,567 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:22,567 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:22,568 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:22,569 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:22,569 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:22,569 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:22,569 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:22,570 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:22,591 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2019-09-20 13:30:22,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:22,606 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:22,607 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] [2019-09-20 13:30:22,610 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:22,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:22,616 INFO L82 PathProgramCache]: Analyzing trace with hash 596163892, now seen corresponding path program 1 times [2019-09-20 13:30:22,618 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:22,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:22,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,676 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:23,024 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 13:30:23,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:23,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:23,031 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:23,038 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:23,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:23,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:23,066 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 2 states. [2019-09-20 13:30:23,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:23,093 INFO L93 Difference]: Finished difference Result 160 states and 186 transitions. [2019-09-20 13:30:23,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:23,094 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:23,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:23,107 INFO L225 Difference]: With dead ends: 160 [2019-09-20 13:30:23,107 INFO L226 Difference]: Without dead ends: 149 [2019-09-20 13:30:23,109 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 13:30:23,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-09-20 13:30:23,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2019-09-20 13:30:23,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-09-20 13:30:23,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 174 transitions. [2019-09-20 13:30:23,185 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 174 transitions. Word has length 51 [2019-09-20 13:30:23,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:23,185 INFO L475 AbstractCegarLoop]: Abstraction has 149 states and 174 transitions. [2019-09-20 13:30:23,185 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:23,185 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 174 transitions. [2019-09-20 13:30:23,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:23,192 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:23,192 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 13:30:23,193 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:23,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:23,194 INFO L82 PathProgramCache]: Analyzing trace with hash 2035101120, now seen corresponding path program 1 times [2019-09-20 13:30:23,194 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:23,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:23,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,198 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:23,338 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 13:30:23,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:23,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:23,338 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:23,340 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:23,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:23,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:23,341 INFO L87 Difference]: Start difference. First operand 149 states and 174 transitions. Second operand 3 states. [2019-09-20 13:30:23,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:23,367 INFO L93 Difference]: Finished difference Result 140 states and 162 transitions. [2019-09-20 13:30:23,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:23,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:23,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:23,373 INFO L225 Difference]: With dead ends: 140 [2019-09-20 13:30:23,373 INFO L226 Difference]: Without dead ends: 140 [2019-09-20 13:30:23,374 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 13:30:23,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-09-20 13:30:23,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-09-20 13:30:23,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-09-20 13:30:23,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 162 transitions. [2019-09-20 13:30:23,398 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 162 transitions. Word has length 52 [2019-09-20 13:30:23,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:23,399 INFO L475 AbstractCegarLoop]: Abstraction has 140 states and 162 transitions. [2019-09-20 13:30:23,399 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:23,402 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 162 transitions. [2019-09-20 13:30:23,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:23,404 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:23,405 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] [2019-09-20 13:30:23,405 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:23,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:23,406 INFO L82 PathProgramCache]: Analyzing trace with hash 2037013755, now seen corresponding path program 1 times [2019-09-20 13:30:23,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:23,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:23,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,409 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:23,568 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 13:30:23,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:23,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:23,569 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:23,569 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:23,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:23,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:23,570 INFO L87 Difference]: Start difference. First operand 140 states and 162 transitions. Second operand 7 states. [2019-09-20 13:30:23,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:23,957 INFO L93 Difference]: Finished difference Result 140 states and 161 transitions. [2019-09-20 13:30:23,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:23,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:30:23,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:23,961 INFO L225 Difference]: With dead ends: 140 [2019-09-20 13:30:23,962 INFO L226 Difference]: Without dead ends: 140 [2019-09-20 13:30:23,965 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 13:30:23,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-09-20 13:30:23,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-09-20 13:30:23,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-09-20 13:30:23,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 161 transitions. [2019-09-20 13:30:23,984 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 161 transitions. Word has length 57 [2019-09-20 13:30:23,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:23,985 INFO L475 AbstractCegarLoop]: Abstraction has 140 states and 161 transitions. [2019-09-20 13:30:23,985 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:23,985 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 161 transitions. [2019-09-20 13:30:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-20 13:30:23,988 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:23,988 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] [2019-09-20 13:30:23,988 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:23,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:23,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1760955875, now seen corresponding path program 1 times [2019-09-20 13:30:23,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:23,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:23,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,993 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:24,150 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 13:30:24,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:24,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:30:24,150 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:24,151 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:30:24,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:30:24,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:30:24,152 INFO L87 Difference]: Start difference. First operand 140 states and 161 transitions. Second operand 5 states. [2019-09-20 13:30:24,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:24,757 INFO L93 Difference]: Finished difference Result 243 states and 282 transitions. [2019-09-20 13:30:24,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:24,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-20 13:30:24,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:24,760 INFO L225 Difference]: With dead ends: 243 [2019-09-20 13:30:24,760 INFO L226 Difference]: Without dead ends: 243 [2019-09-20 13:30:24,761 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 13:30:24,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-09-20 13:30:24,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 224. [2019-09-20 13:30:24,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-09-20 13:30:24,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 256 transitions. [2019-09-20 13:30:24,785 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 256 transitions. Word has length 70 [2019-09-20 13:30:24,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:24,786 INFO L475 AbstractCegarLoop]: Abstraction has 224 states and 256 transitions. [2019-09-20 13:30:24,786 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:30:24,786 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 256 transitions. [2019-09-20 13:30:24,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-20 13:30:24,789 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:24,789 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, 1] [2019-09-20 13:30:24,789 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:24,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:24,790 INFO L82 PathProgramCache]: Analyzing trace with hash 454740656, now seen corresponding path program 1 times [2019-09-20 13:30:24,790 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:24,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:24,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,793 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:24,906 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 13:30:24,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:24,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:24,907 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:24,909 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:24,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:24,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:24,910 INFO L87 Difference]: Start difference. First operand 224 states and 256 transitions. Second operand 6 states. [2019-09-20 13:30:25,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:25,120 INFO L93 Difference]: Finished difference Result 402 states and 459 transitions. [2019-09-20 13:30:25,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:25,121 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-20 13:30:25,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:25,125 INFO L225 Difference]: With dead ends: 402 [2019-09-20 13:30:25,125 INFO L226 Difference]: Without dead ends: 402 [2019-09-20 13:30:25,126 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 13:30:25,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-09-20 13:30:25,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 396. [2019-09-20 13:30:25,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2019-09-20 13:30:25,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 452 transitions. [2019-09-20 13:30:25,151 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 452 transitions. Word has length 84 [2019-09-20 13:30:25,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:25,152 INFO L475 AbstractCegarLoop]: Abstraction has 396 states and 452 transitions. [2019-09-20 13:30:25,153 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:25,153 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 452 transitions. [2019-09-20 13:30:25,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:30:25,155 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:25,155 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, 1, 1, 1, 1, 1] [2019-09-20 13:30:25,155 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:25,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1923981492, now seen corresponding path program 1 times [2019-09-20 13:30:25,156 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:25,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:25,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,160 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:25,297 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 13:30:25,298 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:25,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:25,298 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:25,299 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:25,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:25,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:25,300 INFO L87 Difference]: Start difference. First operand 396 states and 452 transitions. Second operand 7 states. [2019-09-20 13:30:25,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:25,942 INFO L93 Difference]: Finished difference Result 427 states and 501 transitions. [2019-09-20 13:30:25,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:30:25,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2019-09-20 13:30:25,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:25,947 INFO L225 Difference]: With dead ends: 427 [2019-09-20 13:30:25,947 INFO L226 Difference]: Without dead ends: 427 [2019-09-20 13:30:25,947 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 13:30:25,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-09-20 13:30:25,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 395. [2019-09-20 13:30:25,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2019-09-20 13:30:25,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 449 transitions. [2019-09-20 13:30:25,977 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 449 transitions. Word has length 88 [2019-09-20 13:30:25,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:25,977 INFO L475 AbstractCegarLoop]: Abstraction has 395 states and 449 transitions. [2019-09-20 13:30:25,977 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:25,978 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 449 transitions. [2019-09-20 13:30:25,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-20 13:30:25,979 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:25,980 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, 1] [2019-09-20 13:30:25,980 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:25,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:25,981 INFO L82 PathProgramCache]: Analyzing trace with hash -282041291, now seen corresponding path program 1 times [2019-09-20 13:30:25,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:25,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:25,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,983 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:26,078 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 13:30:26,078 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:26,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:26,079 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:26,079 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:26,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:26,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:26,080 INFO L87 Difference]: Start difference. First operand 395 states and 449 transitions. Second operand 6 states. [2019-09-20 13:30:26,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:26,110 INFO L93 Difference]: Finished difference Result 409 states and 463 transitions. [2019-09-20 13:30:26,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:26,111 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2019-09-20 13:30:26,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:26,113 INFO L225 Difference]: With dead ends: 409 [2019-09-20 13:30:26,114 INFO L226 Difference]: Without dead ends: 409 [2019-09-20 13:30:26,114 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 13:30:26,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-09-20 13:30:26,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 405. [2019-09-20 13:30:26,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-09-20 13:30:26,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 459 transitions. [2019-09-20 13:30:26,131 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 459 transitions. Word has length 104 [2019-09-20 13:30:26,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:26,131 INFO L475 AbstractCegarLoop]: Abstraction has 405 states and 459 transitions. [2019-09-20 13:30:26,131 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:26,132 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 459 transitions. [2019-09-20 13:30:26,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-20 13:30:26,134 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:26,134 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, 1] [2019-09-20 13:30:26,134 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:26,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:26,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1646231411, now seen corresponding path program 1 times [2019-09-20 13:30:26,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:26,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:26,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:26,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:26,138 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:26,261 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 13:30:26,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:26,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:30:26,263 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:26,264 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:30:26,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:30:26,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:26,265 INFO L87 Difference]: Start difference. First operand 405 states and 459 transitions. Second operand 8 states. [2019-09-20 13:30:26,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:26,301 INFO L93 Difference]: Finished difference Result 419 states and 473 transitions. [2019-09-20 13:30:26,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:26,302 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2019-09-20 13:30:26,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:26,305 INFO L225 Difference]: With dead ends: 419 [2019-09-20 13:30:26,305 INFO L226 Difference]: Without dead ends: 419 [2019-09-20 13:30:26,306 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 13:30:26,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2019-09-20 13:30:26,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 413. [2019-09-20 13:30:26,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-09-20 13:30:26,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 467 transitions. [2019-09-20 13:30:26,327 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 467 transitions. Word has length 104 [2019-09-20 13:30:26,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:26,328 INFO L475 AbstractCegarLoop]: Abstraction has 413 states and 467 transitions. [2019-09-20 13:30:26,328 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:30:26,328 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 467 transitions. [2019-09-20 13:30:26,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-20 13:30:26,331 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:26,331 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, 1] [2019-09-20 13:30:26,331 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:26,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:26,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1405691282, now seen corresponding path program 1 times [2019-09-20 13:30:26,332 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:26,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:26,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:26,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:26,334 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:26,451 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 13:30:26,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:26,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:30:26,452 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:26,453 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:30:26,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:30:26,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:26,454 INFO L87 Difference]: Start difference. First operand 413 states and 467 transitions. Second operand 4 states. [2019-09-20 13:30:26,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:26,691 INFO L93 Difference]: Finished difference Result 833 states and 983 transitions. [2019-09-20 13:30:26,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:30:26,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2019-09-20 13:30:26,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:26,699 INFO L225 Difference]: With dead ends: 833 [2019-09-20 13:30:26,699 INFO L226 Difference]: Without dead ends: 833 [2019-09-20 13:30:26,700 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 13:30:26,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2019-09-20 13:30:26,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 818. [2019-09-20 13:30:26,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2019-09-20 13:30:26,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 951 transitions. [2019-09-20 13:30:26,740 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 951 transitions. Word has length 104 [2019-09-20 13:30:26,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:26,741 INFO L475 AbstractCegarLoop]: Abstraction has 818 states and 951 transitions. [2019-09-20 13:30:26,741 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:30:26,742 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 951 transitions. [2019-09-20 13:30:26,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-20 13:30:26,744 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:26,744 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, 1, 1, 1, 1, 1] [2019-09-20 13:30:26,745 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:26,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:26,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1820843884, now seen corresponding path program 1 times [2019-09-20 13:30:26,745 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:26,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:26,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:26,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:26,749 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:26,907 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 13:30:26,908 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:26,908 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:26,910 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-20 13:30:26,912 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], [192], [194], [197], [199], [202], [205], [226], [227], [228], [230], [235], [238], [241], [243], [248], [250], [251], [252], [253], [259], [263], [305], [308], [310], [313], [323], [326], [330], [331], [334], [335], [336], [360], [362], [363], [430], [431], [436], [438], [441], [449], [450], [451], [452], [453], [454], [455], [456], [457], [497], [498], [499], [500], [501], [502], [505], [509], [510], [511], [512], [513], [515], [516], [517], [518], [519], [520], [523], [524], [525], [531], [532], [533], [534], [541], [542], [543], [545], [546], [551], [552], [553] [2019-09-20 13:30:26,966 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:26,966 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:27,041 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:27,044 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-20 13:30:27,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:27,049 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:27,097 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:27,097 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:27,101 INFO L420 sIntCurrentIteration]: We unified 107 AI predicates to 107 [2019-09-20 13:30:27,101 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:27,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:27,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-20 13:30:27,103 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:27,103 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:27,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:27,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:27,104 INFO L87 Difference]: Start difference. First operand 818 states and 951 transitions. Second operand 2 states. [2019-09-20 13:30:27,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:27,104 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:27,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:27,105 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 108 [2019-09-20 13:30:27,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:27,105 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:27,105 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:27,105 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 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 13:30:27,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:27,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:27,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:27,106 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2019-09-20 13:30:27,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:27,107 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:27,107 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:27,107 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:27,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:27,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:27 BoogieIcfgContainer [2019-09-20 13:30:27,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:27,115 INFO L168 Benchmark]: Toolchain (without parser) took 6841.61 ms. Allocated memory was 132.1 MB in the beginning and 329.3 MB in the end (delta: 197.1 MB). Free memory was 87.0 MB in the beginning and 145.8 MB in the end (delta: -58.8 MB). Peak memory consumption was 138.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:27,116 INFO L168 Benchmark]: CDTParser took 1.30 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:27,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.63 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 86.8 MB in the beginning and 163.2 MB in the end (delta: -76.4 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:27,118 INFO L168 Benchmark]: Boogie Preprocessor took 146.27 ms. Allocated memory is still 198.7 MB. Free memory was 163.2 MB in the beginning and 158.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:27,119 INFO L168 Benchmark]: RCFGBuilder took 1406.84 ms. Allocated memory was 198.7 MB in the beginning and 221.8 MB in the end (delta: 23.1 MB). Free memory was 158.7 MB in the beginning and 186.5 MB in the end (delta: -27.8 MB). Peak memory consumption was 90.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:27,120 INFO L168 Benchmark]: TraceAbstraction took 4626.09 ms. Allocated memory was 221.8 MB in the beginning and 329.3 MB in the end (delta: 107.5 MB). Free memory was 186.5 MB in the beginning and 145.8 MB in the end (delta: 40.7 MB). Peak memory consumption was 148.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:27,125 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.30 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 657.63 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 86.8 MB in the beginning and 163.2 MB in the end (delta: -76.4 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.27 ms. Allocated memory is still 198.7 MB. Free memory was 163.2 MB in the beginning and 158.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1406.84 ms. Allocated memory was 198.7 MB in the beginning and 221.8 MB in the end (delta: 23.1 MB). Free memory was 158.7 MB in the beginning and 186.5 MB in the end (delta: -27.8 MB). Peak memory consumption was 90.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4626.09 ms. Allocated memory was 221.8 MB in the beginning and 329.3 MB in the end (delta: 107.5 MB). Free memory was 186.5 MB in the beginning and 145.8 MB in the end (delta: 40.7 MB). Peak memory consumption was 148.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 994]: 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 43 procedures, 251 locations, 1 error locations. SAFE Result, 4.5s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1603 SDtfs, 867 SDslu, 3300 SDs, 0 SdLazy, 1148 SolverSat, 251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=818occurred 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, 1.0373831775700935 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, 0.9s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 812 ConstructedInterpolants, 0 QuantifiedInterpolants, 114292 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...