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_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:47,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:47,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:47,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:47,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:47,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:47,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:47,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:47,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:47,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:47,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:47,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:47,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:47,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:47,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:47,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:47,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:47,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:47,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:47,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:47,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:47,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:47,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:47,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:47,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:47,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:47,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:47,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:47,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:47,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:47,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:47,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:47,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:47,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:47,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:47,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:47,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:47,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:47,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:47,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:47,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:47,269 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 17:07:47,298 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:47,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:47,299 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:47,299 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:47,300 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:47,300 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:47,301 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:47,301 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:47,301 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:47,301 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:47,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:47,302 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:47,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:47,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:47,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:47,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:47,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:47,304 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:47,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:47,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:47,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:47,304 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:47,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:47,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:47,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:47,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:47,306 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:47,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:47,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:47,306 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:47,335 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:47,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:47,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:47,354 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:47,355 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:47,355 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product17.cil.c [2019-09-16 17:07:47,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b3c6cf7e/753ceafe93904b4ab101681ac07fca9e/FLAG8d0d3fd1d [2019-09-16 17:07:48,010 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:48,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product17.cil.c [2019-09-16 17:07:48,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b3c6cf7e/753ceafe93904b4ab101681ac07fca9e/FLAG8d0d3fd1d [2019-09-16 17:07:48,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b3c6cf7e/753ceafe93904b4ab101681ac07fca9e [2019-09-16 17:07:48,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:48,300 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:48,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:48,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:48,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:48,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:48" (1/1) ... [2019-09-16 17:07:48,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c790b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:48, skipping insertion in model container [2019-09-16 17:07:48,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:48" (1/1) ... [2019-09-16 17:07:48,316 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:48,375 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:48,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:48,829 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:48,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:48,953 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:48,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:48 WrapperNode [2019-09-16 17:07:48,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:48,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:48,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:48,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:48,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:48" (1/1) ... [2019-09-16 17:07:48,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:48" (1/1) ... [2019-09-16 17:07:48,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:48" (1/1) ... [2019-09-16 17:07:48,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:48" (1/1) ... [2019-09-16 17:07:49,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:48" (1/1) ... [2019-09-16 17:07:49,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:48" (1/1) ... [2019-09-16 17:07:49,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:48" (1/1) ... [2019-09-16 17:07:49,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:49,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:49,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:49,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:49,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:48" (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 17:07:49,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:07:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:07:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:07:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:07:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:07:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:07:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:07:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:07:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:07:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:07:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:07:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:07:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:07:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:07:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:07:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:07:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:07:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:07:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:07:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:07:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:07:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:07:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:07:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:07:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:07:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:07:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:07:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:07:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:07:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:07:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:07:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:07:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:07:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:07:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:07:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:07:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:07:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:07:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:07:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:07:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:07:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:07:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:07:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:07:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:07:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:07:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:07:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:07:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:07:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:07:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:07:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:07:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:07:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:07:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:07:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:07:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:07:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:07:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:07:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:07:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:07:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:07:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:50,397 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:50,398 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:07:50,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:50 BoogieIcfgContainer [2019-09-16 17:07:50,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:50,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:50,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:50,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:50,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:48" (1/3) ... [2019-09-16 17:07:50,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c842c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:50, skipping insertion in model container [2019-09-16 17:07:50,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:48" (2/3) ... [2019-09-16 17:07:50,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c842c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:50, skipping insertion in model container [2019-09-16 17:07:50,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:50" (3/3) ... [2019-09-16 17:07:50,412 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product17.cil.c [2019-09-16 17:07:50,441 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:50,450 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:50,467 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:50,490 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:50,491 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:50,491 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:50,491 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:50,491 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:50,492 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:50,492 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:50,492 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:50,517 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2019-09-16 17:07:50,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:07:50,530 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:50,531 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:50,533 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:50,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:50,540 INFO L82 PathProgramCache]: Analyzing trace with hash -697118378, now seen corresponding path program 1 times [2019-09-16 17:07:50,543 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:50,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:50,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:50,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:50,608 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:50,928 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 17:07:50,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:50,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:50,932 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:50,937 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:50,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:50,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:50,957 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 2 states. [2019-09-16 17:07:50,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:50,985 INFO L93 Difference]: Finished difference Result 115 states and 133 transitions. [2019-09-16 17:07:50,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:50,987 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:07:50,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:51,000 INFO L225 Difference]: With dead ends: 115 [2019-09-16 17:07:51,001 INFO L226 Difference]: Without dead ends: 104 [2019-09-16 17:07:51,003 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 17:07:51,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-09-16 17:07:51,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-09-16 17:07:51,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-09-16 17:07:51,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 121 transitions. [2019-09-16 17:07:51,057 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 121 transitions. Word has length 46 [2019-09-16 17:07:51,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:51,058 INFO L475 AbstractCegarLoop]: Abstraction has 104 states and 121 transitions. [2019-09-16 17:07:51,058 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:51,058 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 121 transitions. [2019-09-16 17:07:51,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:07:51,061 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:51,061 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:51,062 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:51,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:51,062 INFO L82 PathProgramCache]: Analyzing trace with hash -133554589, now seen corresponding path program 1 times [2019-09-16 17:07:51,062 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:51,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:51,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:51,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:51,066 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:51,216 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 17:07:51,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:51,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:07:51,217 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:51,218 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:07:51,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:07:51,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:51,219 INFO L87 Difference]: Start difference. First operand 104 states and 121 transitions. Second operand 3 states. [2019-09-16 17:07:51,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:51,233 INFO L93 Difference]: Finished difference Result 95 states and 109 transitions. [2019-09-16 17:07:51,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:51,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:07:51,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:51,236 INFO L225 Difference]: With dead ends: 95 [2019-09-16 17:07:51,237 INFO L226 Difference]: Without dead ends: 95 [2019-09-16 17:07:51,238 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 17:07:51,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-16 17:07:51,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-16 17:07:51,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-16 17:07:51,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2019-09-16 17:07:51,252 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 47 [2019-09-16 17:07:51,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:51,252 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2019-09-16 17:07:51,252 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:07:51,252 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2019-09-16 17:07:51,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:07:51,254 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:51,255 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 17:07:51,255 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:51,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:51,256 INFO L82 PathProgramCache]: Analyzing trace with hash 70814948, now seen corresponding path program 1 times [2019-09-16 17:07:51,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:51,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:51,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:51,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:51,260 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:51,404 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 17:07:51,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:51,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:07:51,405 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:51,408 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:07:51,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:07:51,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:51,409 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand 3 states. [2019-09-16 17:07:51,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:51,437 INFO L93 Difference]: Finished difference Result 95 states and 108 transitions. [2019-09-16 17:07:51,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:51,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-09-16 17:07:51,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:51,440 INFO L225 Difference]: With dead ends: 95 [2019-09-16 17:07:51,440 INFO L226 Difference]: Without dead ends: 95 [2019-09-16 17:07:51,440 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 17:07:51,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-16 17:07:51,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-16 17:07:51,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-16 17:07:51,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2019-09-16 17:07:51,460 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 51 [2019-09-16 17:07:51,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:51,461 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2019-09-16 17:07:51,461 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:07:51,461 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2019-09-16 17:07:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-16 17:07:51,463 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:51,464 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] [2019-09-16 17:07:51,464 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:51,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:51,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1870012479, now seen corresponding path program 1 times [2019-09-16 17:07:51,466 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:51,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:51,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:51,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:51,469 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:51,639 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 17:07:51,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:51,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:07:51,640 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:51,641 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:07:51,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:07:51,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:07:51,642 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand 6 states. [2019-09-16 17:07:51,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:51,870 INFO L93 Difference]: Finished difference Result 159 states and 184 transitions. [2019-09-16 17:07:51,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:07:51,871 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-09-16 17:07:51,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:51,874 INFO L225 Difference]: With dead ends: 159 [2019-09-16 17:07:51,874 INFO L226 Difference]: Without dead ends: 159 [2019-09-16 17:07:51,875 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 17:07:51,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-09-16 17:07:51,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2019-09-16 17:07:51,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-09-16 17:07:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 182 transitions. [2019-09-16 17:07:51,893 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 182 transitions. Word has length 59 [2019-09-16 17:07:51,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:51,894 INFO L475 AbstractCegarLoop]: Abstraction has 157 states and 182 transitions. [2019-09-16 17:07:51,894 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:07:51,895 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 182 transitions. [2019-09-16 17:07:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-09-16 17:07:51,897 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:51,898 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] [2019-09-16 17:07:51,898 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:51,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:51,898 INFO L82 PathProgramCache]: Analyzing trace with hash 654505667, now seen corresponding path program 1 times [2019-09-16 17:07:51,899 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:51,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:51,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:51,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:51,902 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:52,036 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 17:07:52,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:52,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:07:52,036 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:52,037 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:07:52,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:07:52,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:52,038 INFO L87 Difference]: Start difference. First operand 157 states and 182 transitions. Second operand 7 states. [2019-09-16 17:07:52,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:52,438 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2019-09-16 17:07:52,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:07:52,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2019-09-16 17:07:52,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:52,439 INFO L225 Difference]: With dead ends: 112 [2019-09-16 17:07:52,439 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:07:52,440 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 17:07:52,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:07:52,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:07:52,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:07:52,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:07:52,441 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2019-09-16 17:07:52,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:52,441 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:07:52,441 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:07:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:07:52,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:07:52,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:07:52 BoogieIcfgContainer [2019-09-16 17:07:52,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:07:52,450 INFO L168 Benchmark]: Toolchain (without parser) took 4149.41 ms. Allocated memory was 140.0 MB in the beginning and 262.7 MB in the end (delta: 122.7 MB). Free memory was 86.4 MB in the beginning and 191.4 MB in the end (delta: -105.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:52,451 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory is still 105.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:52,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.56 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 86.0 MB in the beginning and 166.1 MB in the end (delta: -80.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:52,453 INFO L168 Benchmark]: Boogie Preprocessor took 117.37 ms. Allocated memory is still 200.3 MB. Free memory was 166.1 MB in the beginning and 162.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:52,454 INFO L168 Benchmark]: RCFGBuilder took 1327.39 ms. Allocated memory is still 200.3 MB. Free memory was 162.6 MB in the beginning and 79.2 MB in the end (delta: 83.3 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:52,455 INFO L168 Benchmark]: TraceAbstraction took 2046.01 ms. Allocated memory was 200.3 MB in the beginning and 262.7 MB in the end (delta: 62.4 MB). Free memory was 79.2 MB in the beginning and 191.4 MB in the end (delta: -112.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:52,458 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory is still 105.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 653.56 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 86.0 MB in the beginning and 166.1 MB in the end (delta: -80.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.37 ms. Allocated memory is still 200.3 MB. Free memory was 166.1 MB in the beginning and 162.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1327.39 ms. Allocated memory is still 200.3 MB. Free memory was 162.6 MB in the beginning and 79.2 MB in the end (delta: 83.3 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2046.01 ms. Allocated memory was 200.3 MB in the beginning and 262.7 MB in the end (delta: 62.4 MB). Free memory was 79.2 MB in the beginning and 191.4 MB in the end (delta: -112.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 543]: 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 37 procedures, 214 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 526 SDtfs, 234 SDslu, 587 SDs, 0 SdLazy, 209 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=4, 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 261 ConstructedInterpolants, 0 QuantifiedInterpolants, 25229 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...