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_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:47:45,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:47:45,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:47:45,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:47:45,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:47:45,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:47:45,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:47:45,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:47:45,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:47:45,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:47:45,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:47:45,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:47:45,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:47:45,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:47:45,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:47:45,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:47:45,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:47:45,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:47:45,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:47:45,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:47:45,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:47:45,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:47:45,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:47:45,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:47:45,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:47:45,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:47:45,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:47:45,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:47:45,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:47:45,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:47:45,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:47:45,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:47:45,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:47:45,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:47:45,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:47:45,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:47:45,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:47:45,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:47:45,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:47:45,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:47:45,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:47:45,237 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 [2019-09-10 02:47:45,262 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:47:45,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:47:45,263 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:47:45,263 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:47:45,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:47:45,265 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:47:45,265 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:47:45,266 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:47:45,266 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:47:45,266 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:47:45,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:47:45,268 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:47:45,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:47:45,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:47:45,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:47:45,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:47:45,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:47:45,270 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:47:45,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:47:45,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:47:45,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:47:45,271 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:47:45,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:47:45,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:47:45,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:47:45,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:47:45,272 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:47:45,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:47:45,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:47:45,272 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:47:45,329 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:47:45,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:47:45,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:47:45,347 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:47:45,348 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:47:45,348 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2019-09-10 02:47:45,430 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86454137a/c4c5b6793f924361a1158c0cc77e0690/FLAGddc38b0ff [2019-09-10 02:47:45,936 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:47:45,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2019-09-10 02:47:45,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86454137a/c4c5b6793f924361a1158c0cc77e0690/FLAGddc38b0ff [2019-09-10 02:47:46,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86454137a/c4c5b6793f924361a1158c0cc77e0690 [2019-09-10 02:47:46,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:47:46,306 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:47:46,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:46,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:47:46,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:47:46,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:46" (1/1) ... [2019-09-10 02:47:46,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f47040d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:46, skipping insertion in model container [2019-09-10 02:47:46,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:46" (1/1) ... [2019-09-10 02:47:46,322 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:47:46,384 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:47:46,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:46,809 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:47:46,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:46,966 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:47:46,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:46 WrapperNode [2019-09-10 02:47:46,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:46,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:47:46,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:47:46,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:47:46,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:46" (1/1) ... [2019-09-10 02:47:46,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:46" (1/1) ... [2019-09-10 02:47:47,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:46" (1/1) ... [2019-09-10 02:47:47,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:46" (1/1) ... [2019-09-10 02:47:47,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:46" (1/1) ... [2019-09-10 02:47:47,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:46" (1/1) ... [2019-09-10 02:47:47,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:46" (1/1) ... [2019-09-10 02:47:47,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:47:47,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:47:47,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:47:47,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:47:47,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:46" (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 [2019-09-10 02:47:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:47:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:47:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:47:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:47:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:47:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:47:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:47:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:47:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:47:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:47:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:47:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:47:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:47:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:47:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:47:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:47:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:47:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:47:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:47:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:47:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:47:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:47:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:47:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:47:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:47:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:47:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:47:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:47:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:47:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:47:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:47:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:47:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:47:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:47:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:47:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:47:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:47:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:47:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:47:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:47:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:47:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:47:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:47:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:47:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:47:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:47:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:47:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:47:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:47:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:47:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:47:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:47:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:47:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:47:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:47:48,148 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:47:48,149 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:47:48,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:48 BoogieIcfgContainer [2019-09-10 02:47:48,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:47:48,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:47:48,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:47:48,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:47:48,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:47:46" (1/3) ... [2019-09-10 02:47:48,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b33316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:48, skipping insertion in model container [2019-09-10 02:47:48,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:46" (2/3) ... [2019-09-10 02:47:48,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b33316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:48, skipping insertion in model container [2019-09-10 02:47:48,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:48" (3/3) ... [2019-09-10 02:47:48,158 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2019-09-10 02:47:48,168 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:47:48,176 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:47:48,192 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:47:48,219 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:47:48,220 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:47:48,220 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:47:48,220 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:47:48,220 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:47:48,220 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:47:48,221 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:47:48,221 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:47:48,242 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2019-09-10 02:47:48,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:47:48,254 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:48,255 INFO L399 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] [2019-09-10 02:47:48,258 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:48,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:48,264 INFO L82 PathProgramCache]: Analyzing trace with hash 936709255, now seen corresponding path program 1 times [2019-09-10 02:47:48,267 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:48,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:48,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:48,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:48,314 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:48,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:48,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:48,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:47:48,640 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:48,646 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:47:48,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:47:48,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:47:48,665 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2019-09-10 02:47:48,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:48,709 INFO L93 Difference]: Finished difference Result 116 states and 135 transitions. [2019-09-10 02:47:48,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:47:48,710 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:47:48,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:48,732 INFO L225 Difference]: With dead ends: 116 [2019-09-10 02:47:48,736 INFO L226 Difference]: Without dead ends: 105 [2019-09-10 02:47:48,740 INFO L628 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 [2019-09-10 02:47:48,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-09-10 02:47:48,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-09-10 02:47:48,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-09-10 02:47:48,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2019-09-10 02:47:48,792 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 46 [2019-09-10 02:47:48,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:48,793 INFO L475 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2019-09-10 02:47:48,793 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:47:48,793 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2019-09-10 02:47:48,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:47:48,796 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:48,796 INFO L399 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] [2019-09-10 02:47:48,796 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:48,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:48,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1814743517, now seen corresponding path program 1 times [2019-09-10 02:47:48,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:48,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:48,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:48,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:48,799 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:48,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:48,941 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:48,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:47:48,941 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:48,944 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:47:48,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:47:48,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:48,946 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 3 states. [2019-09-10 02:47:48,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:48,974 INFO L93 Difference]: Finished difference Result 96 states and 111 transitions. [2019-09-10 02:47:48,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:47:48,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:47:48,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:48,979 INFO L225 Difference]: With dead ends: 96 [2019-09-10 02:47:48,979 INFO L226 Difference]: Without dead ends: 96 [2019-09-10 02:47:48,982 INFO L628 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 [2019-09-10 02:47:48,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-09-10 02:47:49,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-09-10 02:47:49,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-09-10 02:47:49,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2019-09-10 02:47:49,006 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 47 [2019-09-10 02:47:49,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:49,008 INFO L475 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2019-09-10 02:47:49,008 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:47:49,008 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2019-09-10 02:47:49,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:47:49,013 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:49,013 INFO L399 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] [2019-09-10 02:47:49,014 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:49,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:49,014 INFO L82 PathProgramCache]: Analyzing trace with hash 268149636, now seen corresponding path program 1 times [2019-09-10 02:47:49,017 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:49,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:49,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:49,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:49,018 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:49,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:49,185 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:49,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:49,186 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:49,189 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:49,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:49,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:49,190 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 7 states. [2019-09-10 02:47:49,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:49,503 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2019-09-10 02:47:49,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:49,504 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-10 02:47:49,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:49,506 INFO L225 Difference]: With dead ends: 96 [2019-09-10 02:47:49,506 INFO L226 Difference]: Without dead ends: 96 [2019-09-10 02:47:49,506 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:47:49,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-09-10 02:47:49,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-09-10 02:47:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-09-10 02:47:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2019-09-10 02:47:49,515 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 51 [2019-09-10 02:47:49,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:49,516 INFO L475 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2019-09-10 02:47:49,516 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2019-09-10 02:47:49,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 02:47:49,518 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:49,518 INFO L399 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] [2019-09-10 02:47:49,518 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:49,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:49,519 INFO L82 PathProgramCache]: Analyzing trace with hash -169231603, now seen corresponding path program 1 times [2019-09-10 02:47:49,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:49,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:49,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:49,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:49,520 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:49,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:49,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:49,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:47:49,677 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:49,677 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:47:49,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:47:49,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:47:49,678 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 5 states. [2019-09-10 02:47:50,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:50,134 INFO L93 Difference]: Finished difference Result 179 states and 209 transitions. [2019-09-10 02:47:50,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:50,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2019-09-10 02:47:50,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:50,138 INFO L225 Difference]: With dead ends: 179 [2019-09-10 02:47:50,138 INFO L226 Difference]: Without dead ends: 179 [2019-09-10 02:47:50,138 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:50,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-09-10 02:47:50,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 161. [2019-09-10 02:47:50,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-09-10 02:47:50,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 185 transitions. [2019-09-10 02:47:50,155 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 185 transitions. Word has length 59 [2019-09-10 02:47:50,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:50,156 INFO L475 AbstractCegarLoop]: Abstraction has 161 states and 185 transitions. [2019-09-10 02:47:50,156 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:47:50,156 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 185 transitions. [2019-09-10 02:47:50,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-10 02:47:50,157 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:50,158 INFO L399 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] [2019-09-10 02:47:50,158 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:50,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:50,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1300839735, now seen corresponding path program 1 times [2019-09-10 02:47:50,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:50,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:50,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:50,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:50,160 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:50,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:50,278 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:50,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:50,278 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:50,280 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:50,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:50,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:50,280 INFO L87 Difference]: Start difference. First operand 161 states and 185 transitions. Second operand 6 states. [2019-09-10 02:47:50,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:50,449 INFO L93 Difference]: Finished difference Result 283 states and 326 transitions. [2019-09-10 02:47:50,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:50,450 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2019-09-10 02:47:50,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:50,454 INFO L225 Difference]: With dead ends: 283 [2019-09-10 02:47:50,454 INFO L226 Difference]: Without dead ends: 283 [2019-09-10 02:47:50,455 INFO L628 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 [2019-09-10 02:47:50,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2019-09-10 02:47:50,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 277. [2019-09-10 02:47:50,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-09-10 02:47:50,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 320 transitions. [2019-09-10 02:47:50,477 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 320 transitions. Word has length 73 [2019-09-10 02:47:50,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:50,478 INFO L475 AbstractCegarLoop]: Abstraction has 277 states and 320 transitions. [2019-09-10 02:47:50,478 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:50,478 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 320 transitions. [2019-09-10 02:47:50,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-10 02:47:50,480 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:50,481 INFO L399 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] [2019-09-10 02:47:50,481 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:50,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:50,481 INFO L82 PathProgramCache]: Analyzing trace with hash 2135215483, now seen corresponding path program 1 times [2019-09-10 02:47:50,482 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:50,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:50,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:50,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:50,483 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:50,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:50,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:50,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:50,624 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:50,625 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:50,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:50,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:50,626 INFO L87 Difference]: Start difference. First operand 277 states and 320 transitions. Second operand 7 states. [2019-09-10 02:47:51,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:51,200 INFO L93 Difference]: Finished difference Result 307 states and 366 transitions. [2019-09-10 02:47:51,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:47:51,201 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-09-10 02:47:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:51,204 INFO L225 Difference]: With dead ends: 307 [2019-09-10 02:47:51,205 INFO L226 Difference]: Without dead ends: 307 [2019-09-10 02:47:51,205 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:47:51,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2019-09-10 02:47:51,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 277. [2019-09-10 02:47:51,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-09-10 02:47:51,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 319 transitions. [2019-09-10 02:47:51,225 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 319 transitions. Word has length 77 [2019-09-10 02:47:51,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:51,226 INFO L475 AbstractCegarLoop]: Abstraction has 277 states and 319 transitions. [2019-09-10 02:47:51,226 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:51,226 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 319 transitions. [2019-09-10 02:47:51,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 02:47:51,228 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:51,228 INFO L399 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] [2019-09-10 02:47:51,228 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:51,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:51,229 INFO L82 PathProgramCache]: Analyzing trace with hash 2125508241, now seen corresponding path program 1 times [2019-09-10 02:47:51,229 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:51,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:51,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,230 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:51,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:51,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:51,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:51,294 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:51,295 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:51,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:51,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:51,296 INFO L87 Difference]: Start difference. First operand 277 states and 319 transitions. Second operand 6 states. [2019-09-10 02:47:51,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:51,322 INFO L93 Difference]: Finished difference Result 287 states and 329 transitions. [2019-09-10 02:47:51,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:51,323 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2019-09-10 02:47:51,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:51,325 INFO L225 Difference]: With dead ends: 287 [2019-09-10 02:47:51,326 INFO L226 Difference]: Without dead ends: 287 [2019-09-10 02:47:51,326 INFO L628 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 [2019-09-10 02:47:51,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2019-09-10 02:47:51,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2019-09-10 02:47:51,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2019-09-10 02:47:51,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 329 transitions. [2019-09-10 02:47:51,340 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 329 transitions. Word has length 78 [2019-09-10 02:47:51,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:51,341 INFO L475 AbstractCegarLoop]: Abstraction has 287 states and 329 transitions. [2019-09-10 02:47:51,341 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 329 transitions. [2019-09-10 02:47:51,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 02:47:51,343 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:51,343 INFO L399 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] [2019-09-10 02:47:51,343 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:51,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:51,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1616035151, now seen corresponding path program 1 times [2019-09-10 02:47:51,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:51,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:51,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,345 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:51,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:51,433 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:51,433 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:47:51,433 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:51,434 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:47:51,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:47:51,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:47:51,435 INFO L87 Difference]: Start difference. First operand 287 states and 329 transitions. Second operand 8 states. [2019-09-10 02:47:51,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:51,465 INFO L93 Difference]: Finished difference Result 301 states and 343 transitions. [2019-09-10 02:47:51,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:51,469 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2019-09-10 02:47:51,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:51,471 INFO L225 Difference]: With dead ends: 301 [2019-09-10 02:47:51,471 INFO L226 Difference]: Without dead ends: 301 [2019-09-10 02:47:51,472 INFO L628 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 [2019-09-10 02:47:51,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2019-09-10 02:47:51,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 295. [2019-09-10 02:47:51,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2019-09-10 02:47:51,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 337 transitions. [2019-09-10 02:47:51,499 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 337 transitions. Word has length 78 [2019-09-10 02:47:51,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:51,500 INFO L475 AbstractCegarLoop]: Abstraction has 295 states and 337 transitions. [2019-09-10 02:47:51,500 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:47:51,500 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 337 transitions. [2019-09-10 02:47:51,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 02:47:51,503 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:51,503 INFO L399 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] [2019-09-10 02:47:51,504 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:51,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:51,504 INFO L82 PathProgramCache]: Analyzing trace with hash -394068690, now seen corresponding path program 1 times [2019-09-10 02:47:51,504 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:51,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:51,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,505 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:51,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:51,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:51,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:47:51,588 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:51,589 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:47:51,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:47:51,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:47:51,589 INFO L87 Difference]: Start difference. First operand 295 states and 337 transitions. Second operand 4 states. [2019-09-10 02:47:51,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:51,760 INFO L93 Difference]: Finished difference Result 616 states and 739 transitions. [2019-09-10 02:47:51,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:47:51,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2019-09-10 02:47:51,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:51,765 INFO L225 Difference]: With dead ends: 616 [2019-09-10 02:47:51,765 INFO L226 Difference]: Without dead ends: 616 [2019-09-10 02:47:51,766 INFO L628 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 [2019-09-10 02:47:51,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-09-10 02:47:51,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 409. [2019-09-10 02:47:51,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2019-09-10 02:47:51,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 464 transitions. [2019-09-10 02:47:51,790 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 464 transitions. Word has length 78 [2019-09-10 02:47:51,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:51,791 INFO L475 AbstractCegarLoop]: Abstraction has 409 states and 464 transitions. [2019-09-10 02:47:51,791 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:47:51,791 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 464 transitions. [2019-09-10 02:47:51,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-10 02:47:51,793 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:51,793 INFO L399 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] [2019-09-10 02:47:51,793 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:51,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:51,794 INFO L82 PathProgramCache]: Analyzing trace with hash 823271752, now seen corresponding path program 1 times [2019-09-10 02:47:51,794 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:51,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:51,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,795 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:47:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:47:52,436 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 02:47:52,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:47:52 BoogieIcfgContainer [2019-09-10 02:47:52,631 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:47:52,635 INFO L168 Benchmark]: Toolchain (without parser) took 6326.80 ms. Allocated memory was 133.7 MB in the beginning and 318.8 MB in the end (delta: 185.1 MB). Free memory was 89.0 MB in the beginning and 139.5 MB in the end (delta: -50.5 MB). Peak memory consumption was 134.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:52,636 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:47:52,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.89 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 88.8 MB in the beginning and 165.9 MB in the end (delta: -77.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:52,640 INFO L168 Benchmark]: Boogie Preprocessor took 84.61 ms. Allocated memory is still 200.3 MB. Free memory was 165.9 MB in the beginning and 161.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:52,641 INFO L168 Benchmark]: RCFGBuilder took 1096.72 ms. Allocated memory was 200.3 MB in the beginning and 227.0 MB in the end (delta: 26.7 MB). Free memory was 161.6 MB in the beginning and 196.6 MB in the end (delta: -35.0 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:52,647 INFO L168 Benchmark]: TraceAbstraction took 4479.61 ms. Allocated memory was 227.0 MB in the beginning and 318.8 MB in the end (delta: 91.8 MB). Free memory was 195.3 MB in the beginning and 139.5 MB in the end (delta: 55.8 MB). Peak memory consumption was 147.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:52,655 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 661.89 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 88.8 MB in the beginning and 165.9 MB in the end (delta: -77.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.61 ms. Allocated memory is still 200.3 MB. Free memory was 165.9 MB in the beginning and 161.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1096.72 ms. Allocated memory was 200.3 MB in the beginning and 227.0 MB in the end (delta: 26.7 MB). Free memory was 161.6 MB in the beginning and 196.6 MB in the end (delta: -35.0 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4479.61 ms. Allocated memory was 227.0 MB in the beginning and 318.8 MB in the end (delta: 91.8 MB). Free memory was 195.3 MB in the beginning and 139.5 MB in the end (delta: 55.8 MB). Peak memory consumption was 147.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 410]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int pumpRunning = 0; [L425] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L756] int retValue_acc ; [L757] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L761] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L762] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L763] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L674] int retValue_acc ; [L677] retValue_acc = 1 [L678] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L763] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L763] tmp = valid_product() [L765] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L767] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L768] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L750] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L581] int splverifierCounter ; [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L585] int tmp___2 ; [L588] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L590] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L592] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L598] tmp = __VERIFIER_nondet_int() [L600] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L602] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L608] tmp___0 = __VERIFIER_nondet_int() [L610] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L612] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L836] COND FALSE !(\read(methaneLevelCritical)) [L839] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L612] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L618] tmp___2 = __VERIFIER_nondet_int() [L620] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L633] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L432] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L439] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L461] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L464] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] int retValue_acc ; [L559] int tmp ; [L560] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L564] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L886] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L889] COND FALSE !(waterLevel < 2) [L893] retValue_acc = 0 [L894] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L564] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L564] tmp = isHighWaterSensorDry() [L566] COND FALSE !(\read(tmp)) [L569] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L571] retValue_acc = tmp___0 [L572] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L466] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] tmp = isHighWaterLevel() [L468] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L470] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L489] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L470] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L441] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L447] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L780] int tmp ; [L781] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L785] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L785] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L785] tmp = isMethaneLevelCritical() [L787] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L789] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L513] int retValue_acc ; [L516] retValue_acc = pumpRunning [L517] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L789] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L789] tmp___0 = isPumpRunning() [L791] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L793] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L410] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 215 locations, 1 error locations. UNSAFE Result, 4.4s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1083 SDtfs, 677 SDslu, 2226 SDs, 0 SdLazy, 788 SolverSat, 211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=409occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 267 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 669 NumberOfCodeBlocks, 669 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 578 ConstructedInterpolants, 0 QuantifiedInterpolants, 66014 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...