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_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:18,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:18,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:18,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:18,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:18,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:18,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:18,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:18,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:18,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:18,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:18,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:18,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:18,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:18,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:18,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:18,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:18,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:18,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:18,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:18,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:18,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:18,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:18,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:18,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:18,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:18,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:18,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:18,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:18,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:18,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:18,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:18,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:18,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:18,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:18,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:18,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:18,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:18,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:18,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:18,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:18,244 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 [2019-09-16 17:08:18,272 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:18,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:18,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:18,274 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:18,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:18,275 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:18,275 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:18,275 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:18,275 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:18,276 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:18,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:18,278 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:18,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:18,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:18,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:18,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:18,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:18,280 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:18,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:18,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:18,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:18,281 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:18,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:18,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:18,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:18,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:18,282 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:18,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:18,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:18,283 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:18,336 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:18,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:18,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:18,354 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:18,355 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:18,355 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product25.cil.c [2019-09-16 17:08:18,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80bcd7159/dacd4d83151c49969e607eb4fb25a882/FLAGfe90c5ead [2019-09-16 17:08:18,990 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:18,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product25.cil.c [2019-09-16 17:08:19,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80bcd7159/dacd4d83151c49969e607eb4fb25a882/FLAGfe90c5ead [2019-09-16 17:08:19,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80bcd7159/dacd4d83151c49969e607eb4fb25a882 [2019-09-16 17:08:19,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:19,269 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:19,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:19,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:19,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:19,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:19" (1/1) ... [2019-09-16 17:08:19,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46cde57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:19, skipping insertion in model container [2019-09-16 17:08:19,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:19" (1/1) ... [2019-09-16 17:08:19,287 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:19,356 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:19,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:19,857 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:19,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:19,964 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:19,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:19 WrapperNode [2019-09-16 17:08:19,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:19,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:19,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:19,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:19,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:19" (1/1) ... [2019-09-16 17:08:19,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:19" (1/1) ... [2019-09-16 17:08:19,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:19" (1/1) ... [2019-09-16 17:08:20,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:19" (1/1) ... [2019-09-16 17:08:20,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:19" (1/1) ... [2019-09-16 17:08:20,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:19" (1/1) ... [2019-09-16 17:08:20,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:19" (1/1) ... [2019-09-16 17:08:20,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:20,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:20,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:20,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:20,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:19" (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 [2019-09-16 17:08:20,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:20,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:20,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:20,124 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:20,124 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:20,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:20,124 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:20,124 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:20,124 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:20,125 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:20,125 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:20,125 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:20,125 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:20,125 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:20,126 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:08:20,126 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:20,126 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:08:20,126 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:20,126 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:20,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:20,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:20,127 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:20,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:08:20,127 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:20,127 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:20,127 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:20,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:20,128 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:20,128 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:20,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:08:20,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:20,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:20,133 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:20,133 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:08:20,133 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:20,133 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:20,133 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:20,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:08:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:08:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:08:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:20,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:20,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:21,268 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:21,268 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:21,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:21 BoogieIcfgContainer [2019-09-16 17:08:21,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:21,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:21,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:21,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:21,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:19" (1/3) ... [2019-09-16 17:08:21,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcfef8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:21, skipping insertion in model container [2019-09-16 17:08:21,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:19" (2/3) ... [2019-09-16 17:08:21,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcfef8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:21, skipping insertion in model container [2019-09-16 17:08:21,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:21" (3/3) ... [2019-09-16 17:08:21,281 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product25.cil.c [2019-09-16 17:08:21,292 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:21,305 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:21,346 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:21,375 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:21,375 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:21,376 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:21,376 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:21,376 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:21,376 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:21,377 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:21,377 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:21,407 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2019-09-16 17:08:21,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:08:21,425 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:21,426 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] [2019-09-16 17:08:21,430 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:21,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:21,437 INFO L82 PathProgramCache]: Analyzing trace with hash 360322955, now seen corresponding path program 1 times [2019-09-16 17:08:21,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:21,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:21,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:21,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:21,493 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:21,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:21,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:21,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:21,842 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:21,849 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:21,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:21,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:21,873 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 2 states. [2019-09-16 17:08:21,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:21,917 INFO L93 Difference]: Finished difference Result 120 states and 139 transitions. [2019-09-16 17:08:21,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:21,922 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-16 17:08:21,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:21,943 INFO L225 Difference]: With dead ends: 120 [2019-09-16 17:08:21,950 INFO L226 Difference]: Without dead ends: 109 [2019-09-16 17:08:21,954 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 [2019-09-16 17:08:21,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-09-16 17:08:22,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-09-16 17:08:22,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-09-16 17:08:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2019-09-16 17:08:22,032 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 51 [2019-09-16 17:08:22,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:22,033 INFO L475 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2019-09-16 17:08:22,033 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:22,033 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2019-09-16 17:08:22,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:22,040 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:22,040 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] [2019-09-16 17:08:22,041 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:22,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:22,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1474642768, now seen corresponding path program 1 times [2019-09-16 17:08:22,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:22,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:22,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:22,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:22,046 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:22,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:22,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:22,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:22,215 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:22,216 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:22,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:22,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:22,217 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 3 states. [2019-09-16 17:08:22,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:22,231 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2019-09-16 17:08:22,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:22,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:08:22,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:22,233 INFO L225 Difference]: With dead ends: 100 [2019-09-16 17:08:22,234 INFO L226 Difference]: Without dead ends: 100 [2019-09-16 17:08:22,235 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 [2019-09-16 17:08:22,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-09-16 17:08:22,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-09-16 17:08:22,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-09-16 17:08:22,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2019-09-16 17:08:22,246 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 52 [2019-09-16 17:08:22,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:22,247 INFO L475 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2019-09-16 17:08:22,247 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:22,247 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2019-09-16 17:08:22,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-16 17:08:22,252 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:22,252 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] [2019-09-16 17:08:22,253 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:22,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:22,253 INFO L82 PathProgramCache]: Analyzing trace with hash -282288247, now seen corresponding path program 1 times [2019-09-16 17:08:22,253 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:22,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:22,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:22,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:22,258 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:22,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:22,413 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:22,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:22,413 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:22,414 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:22,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:22,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:22,415 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 7 states. [2019-09-16 17:08:22,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:22,717 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2019-09-16 17:08:22,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:22,718 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-16 17:08:22,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:22,722 INFO L225 Difference]: With dead ends: 100 [2019-09-16 17:08:22,722 INFO L226 Difference]: Without dead ends: 100 [2019-09-16 17:08:22,725 INFO L636 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 [2019-09-16 17:08:22,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-09-16 17:08:22,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-09-16 17:08:22,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-09-16 17:08:22,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2019-09-16 17:08:22,741 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 56 [2019-09-16 17:08:22,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:22,745 INFO L475 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2019-09-16 17:08:22,745 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2019-09-16 17:08:22,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-16 17:08:22,751 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:22,755 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] [2019-09-16 17:08:22,755 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:22,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:22,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1883415514, now seen corresponding path program 1 times [2019-09-16 17:08:22,756 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:22,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:22,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:22,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:22,760 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:22,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:22,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:22,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:22,934 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:22,934 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:22,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:22,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:22,935 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 6 states. [2019-09-16 17:08:23,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:23,182 INFO L93 Difference]: Finished difference Result 164 states and 190 transitions. [2019-09-16 17:08:23,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:23,183 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-09-16 17:08:23,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:23,187 INFO L225 Difference]: With dead ends: 164 [2019-09-16 17:08:23,187 INFO L226 Difference]: Without dead ends: 164 [2019-09-16 17:08:23,188 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 [2019-09-16 17:08:23,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-09-16 17:08:23,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2019-09-16 17:08:23,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-09-16 17:08:23,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 188 transitions. [2019-09-16 17:08:23,230 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 188 transitions. Word has length 64 [2019-09-16 17:08:23,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:23,231 INFO L475 AbstractCegarLoop]: Abstraction has 162 states and 188 transitions. [2019-09-16 17:08:23,231 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:23,231 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 188 transitions. [2019-09-16 17:08:23,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-16 17:08:23,237 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:23,237 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] [2019-09-16 17:08:23,237 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:23,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:23,238 INFO L82 PathProgramCache]: Analyzing trace with hash 515534978, now seen corresponding path program 1 times [2019-09-16 17:08:23,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:23,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:23,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:23,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:23,243 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:23,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:23,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:23,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:23,403 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:23,405 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:23,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:23,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:23,407 INFO L87 Difference]: Start difference. First operand 162 states and 188 transitions. Second operand 7 states. [2019-09-16 17:08:23,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:23,774 INFO L93 Difference]: Finished difference Result 116 states and 129 transitions. [2019-09-16 17:08:23,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:23,775 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2019-09-16 17:08:23,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:23,776 INFO L225 Difference]: With dead ends: 116 [2019-09-16 17:08:23,776 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:23,776 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:08:23,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:23,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:23,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:23,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:23,778 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2019-09-16 17:08:23,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:23,778 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:23,778 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:23,778 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:23,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:23,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:23 BoogieIcfgContainer [2019-09-16 17:08:23,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:23,790 INFO L168 Benchmark]: Toolchain (without parser) took 4519.79 ms. Allocated memory was 138.9 MB in the beginning and 267.9 MB in the end (delta: 129.0 MB). Free memory was 84.4 MB in the beginning and 164.8 MB in the end (delta: -80.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:23,791 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:23,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.40 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 84.2 MB in the beginning and 165.3 MB in the end (delta: -81.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:23,793 INFO L168 Benchmark]: Boogie Preprocessor took 85.62 ms. Allocated memory is still 199.2 MB. Free memory was 165.3 MB in the beginning and 161.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:23,794 INFO L168 Benchmark]: RCFGBuilder took 1218.83 ms. Allocated memory is still 199.2 MB. Free memory was 161.0 MB in the beginning and 78.3 MB in the end (delta: 82.6 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:23,795 INFO L168 Benchmark]: TraceAbstraction took 2513.56 ms. Allocated memory was 199.2 MB in the beginning and 267.9 MB in the end (delta: 68.7 MB). Free memory was 77.7 MB in the beginning and 164.8 MB in the end (delta: -87.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:08:23,799 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.40 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 84.2 MB in the beginning and 165.3 MB in the end (delta: -81.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.62 ms. Allocated memory is still 199.2 MB. Free memory was 165.3 MB in the beginning and 161.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1218.83 ms. Allocated memory is still 199.2 MB. Free memory was 161.0 MB in the beginning and 78.3 MB in the end (delta: 82.6 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2513.56 ms. Allocated memory was 199.2 MB in the beginning and 267.9 MB in the end (delta: 68.7 MB). Free memory was 77.7 MB in the beginning and 164.8 MB in the end (delta: -87.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 518]: 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 39 procedures, 226 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 550 SDtfs, 263 SDslu, 859 SDs, 0 SdLazy, 316 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=0, 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 30424 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...