/usr/bin/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:33:42,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:33:42,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:33:42,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:33:42,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:33:42,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:33:42,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:33:42,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:33:42,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:33:42,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:33:42,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:33:42,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:33:42,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:33:42,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:33:42,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:33:42,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:33:42,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:33:42,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:33:42,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:33:42,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:33:42,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:33:42,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:33:42,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:33:42,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:33:42,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:33:42,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:33:42,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:33:42,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:33:42,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:33:42,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:33:42,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:33:42,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:33:42,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:33:42,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:33:42,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:33:42,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:33:42,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:33:42,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:33:42,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:33:42,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:33:42,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:33:42,228 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:33:42,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:33:42,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:33:42,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:33:42,247 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:33:42,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:33:42,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:33:42,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:33:42,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:33:42,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:33:42,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:33:42,249 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:33:42,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:33:42,250 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:33:42,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:33:42,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:33:42,250 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:33:42,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:33:42,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:33:42,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:33:42,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:33:42,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:33:42,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:33:42,252 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:33:42,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:33:42,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:33:42,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:33:42,550 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:33:42,550 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:33:42,551 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-07-07 12:33:42,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f188625fc/f2fa3efb17e34c03b22ca6cc09612d56/FLAG61f40eb3e [2020-07-07 12:33:43,118 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:33:43,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-07-07 12:33:43,137 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f188625fc/f2fa3efb17e34c03b22ca6cc09612d56/FLAG61f40eb3e [2020-07-07 12:33:43,465 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f188625fc/f2fa3efb17e34c03b22ca6cc09612d56 [2020-07-07 12:33:43,475 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:33:43,477 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:33:43,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:43,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:33:43,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:33:43,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:43" (1/1) ... [2020-07-07 12:33:43,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dcd9b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:43, skipping insertion in model container [2020-07-07 12:33:43,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:43" (1/1) ... [2020-07-07 12:33:43,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:33:43,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:33:43,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:43,981 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:33:44,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:44,114 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:33:44,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:44 WrapperNode [2020-07-07 12:33:44,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:44,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:33:44,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:33:44,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:33:44,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:44" (1/1) ... [2020-07-07 12:33:44,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:44" (1/1) ... [2020-07-07 12:33:44,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:44" (1/1) ... [2020-07-07 12:33:44,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:44" (1/1) ... [2020-07-07 12:33:44,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:44" (1/1) ... [2020-07-07 12:33:44,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:44" (1/1) ... [2020-07-07 12:33:44,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:44" (1/1) ... [2020-07-07 12:33:44,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:33:44,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:33:44,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:33:44,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:33:44,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:33:44,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:33:44,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:33:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:33:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:33:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:33:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:33:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:33:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:33:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:33:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:33:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:33:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:33:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:33:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:33:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:44,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:44,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:44,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:33:44,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:33:44,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:33:44,320 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:33:44,320 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:33:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:33:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:33:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:33:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:33:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:33:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:33:44,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:33:44,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:33:44,322 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:33:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:33:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 12:33:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:33:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:33:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:33:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:33:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:33:44,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:33:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:33:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:33:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:33:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:33:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:33:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:33:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:33:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:33:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:33:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:33:44,326 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:33:44,326 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:33:44,326 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:33:44,326 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:33:44,326 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:33:44,327 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:33:44,327 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:33:44,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:33:44,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:33:44,327 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:33:44,327 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:33:44,327 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:33:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:33:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:33:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:33:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:33:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:33:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:33:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:33:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:33:44,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:33:44,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:33:44,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:33:44,330 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 12:33:44,330 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:33:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:33:44,332 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:33:44,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:44,332 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:33:44,333 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:33:44,333 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:33:44,333 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:33:44,333 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:33:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:33:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:33:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:33:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:33:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:33:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:33:45,432 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:33:45,433 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:33:45,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:45 BoogieIcfgContainer [2020-07-07 12:33:45,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:33:45,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:33:45,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:33:45,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:33:45,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:33:43" (1/3) ... [2020-07-07 12:33:45,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74454379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:45, skipping insertion in model container [2020-07-07 12:33:45,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:44" (2/3) ... [2020-07-07 12:33:45,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74454379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:45, skipping insertion in model container [2020-07-07 12:33:45,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:45" (3/3) ... [2020-07-07 12:33:45,452 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c [2020-07-07 12:33:45,463 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:33:45,476 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:33:45,490 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:33:45,515 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:33:45,516 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:33:45,516 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:33:45,517 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:33:45,517 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:33:45,517 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:33:45,517 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:33:45,518 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:33:45,547 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states. [2020-07-07 12:33:45,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:33:45,589 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:45,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:45,591 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:45,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:45,597 INFO L82 PathProgramCache]: Analyzing trace with hash -2091214271, now seen corresponding path program 1 times [2020-07-07 12:33:45,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:45,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194082956] [2020-07-07 12:33:45,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:46,390 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:46,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:46,601 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:46,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [194082956] [2020-07-07 12:33:46,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:46,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:33:46,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175694325] [2020-07-07 12:33:46,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:33:46,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:46,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:33:46,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:46,636 INFO L87 Difference]: Start difference. First operand 320 states. Second operand 3 states. [2020-07-07 12:33:48,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:48,109 INFO L93 Difference]: Finished difference Result 486 states and 580 transitions. [2020-07-07 12:33:48,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:33:48,111 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:33:48,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:48,129 INFO L225 Difference]: With dead ends: 486 [2020-07-07 12:33:48,129 INFO L226 Difference]: Without dead ends: 301 [2020-07-07 12:33:48,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:48,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-07-07 12:33:48,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-07-07 12:33:48,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-07-07 12:33:48,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 282 transitions. [2020-07-07 12:33:48,265 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 282 transitions. Word has length 153 [2020-07-07 12:33:48,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:48,266 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 282 transitions. [2020-07-07 12:33:48,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:33:48,267 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 282 transitions. [2020-07-07 12:33:48,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:33:48,271 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:48,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:48,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:33:48,272 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:48,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:48,273 INFO L82 PathProgramCache]: Analyzing trace with hash 770712739, now seen corresponding path program 1 times [2020-07-07 12:33:48,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:48,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719277126] [2020-07-07 12:33:48,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,634 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:48,735 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:48,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719277126] [2020-07-07 12:33:48,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:48,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:33:48,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122520604] [2020-07-07 12:33:48,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:33:48,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:48,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:33:48,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:33:48,740 INFO L87 Difference]: Start difference. First operand 259 states and 282 transitions. Second operand 4 states. [2020-07-07 12:33:49,425 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:50,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:50,412 INFO L93 Difference]: Finished difference Result 399 states and 451 transitions. [2020-07-07 12:33:50,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:33:50,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:33:50,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:50,418 INFO L225 Difference]: With dead ends: 399 [2020-07-07 12:33:50,419 INFO L226 Difference]: Without dead ends: 284 [2020-07-07 12:33:50,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:33:50,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-07-07 12:33:50,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-07-07 12:33:50,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-07-07 12:33:50,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-07-07 12:33:50,499 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 154 [2020-07-07 12:33:50,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:50,500 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-07-07 12:33:50,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:33:50,501 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-07-07 12:33:50,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-07 12:33:50,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:50,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:50,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:33:50,504 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:50,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:50,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1092236248, now seen corresponding path program 1 times [2020-07-07 12:33:50,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:50,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103228006] [2020-07-07 12:33:50,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,815 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:50,962 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:50,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103228006] [2020-07-07 12:33:50,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:50,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:33:50,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411737266] [2020-07-07 12:33:50,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:33:50,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:50,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:33:50,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:33:50,966 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 10 states. [2020-07-07 12:33:51,641 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:51,948 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:33:52,179 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:33:52,438 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:52,680 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:52,908 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:54,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:54,544 INFO L93 Difference]: Finished difference Result 445 states and 513 transitions. [2020-07-07 12:33:54,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:33:54,545 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-07-07 12:33:54,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:54,549 INFO L225 Difference]: With dead ends: 445 [2020-07-07 12:33:54,550 INFO L226 Difference]: Without dead ends: 306 [2020-07-07 12:33:54,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-07-07 12:33:54,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-07-07 12:33:54,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-07-07 12:33:54,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-07-07 12:33:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 268 transitions. [2020-07-07 12:33:54,629 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 268 transitions. Word has length 167 [2020-07-07 12:33:54,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:54,630 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 268 transitions. [2020-07-07 12:33:54,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:33:54,630 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 268 transitions. [2020-07-07 12:33:54,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-07-07 12:33:54,633 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:54,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:54,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:33:54,634 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:54,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:54,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1656489563, now seen corresponding path program 1 times [2020-07-07 12:33:54,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:54,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696654423] [2020-07-07 12:33:54,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,076 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:55,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:55,294 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:55,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696654423] [2020-07-07 12:33:55,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:55,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:33:55,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437630683] [2020-07-07 12:33:55,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:33:55,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:55,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:33:55,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:33:55,296 INFO L87 Difference]: Start difference. First operand 249 states and 268 transitions. Second operand 10 states. [2020-07-07 12:33:55,989 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:58,035 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:58,359 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:58,600 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:58,843 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:59,085 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:59,490 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:59,757 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:00,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:00,340 INFO L93 Difference]: Finished difference Result 689 states and 848 transitions. [2020-07-07 12:34:00,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-07 12:34:00,341 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 180 [2020-07-07 12:34:00,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:00,347 INFO L225 Difference]: With dead ends: 689 [2020-07-07 12:34:00,347 INFO L226 Difference]: Without dead ends: 550 [2020-07-07 12:34:00,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-07-07 12:34:00,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-07-07 12:34:00,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 382. [2020-07-07 12:34:00,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-07-07 12:34:00,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 424 transitions. [2020-07-07 12:34:00,484 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 424 transitions. Word has length 180 [2020-07-07 12:34:00,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:00,485 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 424 transitions. [2020-07-07 12:34:00,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:34:00,485 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 424 transitions. [2020-07-07 12:34:00,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-07 12:34:00,488 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:00,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:00,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:34:00,489 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:00,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:00,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1039120385, now seen corresponding path program 1 times [2020-07-07 12:34:00,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:00,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507652605] [2020-07-07 12:34:00,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,744 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:00,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:00,937 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:00,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507652605] [2020-07-07 12:34:00,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:00,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 12:34:00,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068530235] [2020-07-07 12:34:00,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 12:34:00,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:00,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 12:34:00,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-07 12:34:00,941 INFO L87 Difference]: Start difference. First operand 382 states and 424 transitions. Second operand 7 states. [2020-07-07 12:34:01,453 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:02,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:02,282 INFO L93 Difference]: Finished difference Result 614 states and 718 transitions. [2020-07-07 12:34:02,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:34:02,283 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 185 [2020-07-07 12:34:02,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:02,285 INFO L225 Difference]: With dead ends: 614 [2020-07-07 12:34:02,286 INFO L226 Difference]: Without dead ends: 342 [2020-07-07 12:34:02,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-07-07 12:34:02,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-07-07 12:34:02,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 276. [2020-07-07 12:34:02,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-07-07 12:34:02,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 291 transitions. [2020-07-07 12:34:02,361 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 291 transitions. Word has length 185 [2020-07-07 12:34:02,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:02,361 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 291 transitions. [2020-07-07 12:34:02,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 12:34:02,361 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 291 transitions. [2020-07-07 12:34:02,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-07 12:34:02,364 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:02,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:02,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:34:02,364 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:02,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:02,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1994642045, now seen corresponding path program 1 times [2020-07-07 12:34:02,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:02,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314901321] [2020-07-07 12:34:02,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:02,754 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:02,756 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:34:02,756 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:34:02,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:34:02,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:34:02 BoogieIcfgContainer [2020-07-07 12:34:02,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:34:02,804 INFO L168 Benchmark]: Toolchain (without parser) took 19325.46 ms. Allocated memory was 138.4 MB in the beginning and 574.6 MB in the end (delta: 436.2 MB). Free memory was 102.1 MB in the beginning and 171.2 MB in the end (delta: -69.2 MB). Peak memory consumption was 367.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:02,811 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:34:02,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.88 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 170.1 MB in the end (delta: -68.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:02,814 INFO L168 Benchmark]: Boogie Preprocessor took 110.67 ms. Allocated memory is still 202.9 MB. Free memory was 170.1 MB in the beginning and 166.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:02,819 INFO L168 Benchmark]: RCFGBuilder took 1212.94 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.0 MB in the beginning and 174.8 MB in the end (delta: -8.7 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:02,821 INFO L168 Benchmark]: TraceAbstraction took 17356.04 ms. Allocated memory was 235.9 MB in the beginning and 574.6 MB in the end (delta: 338.7 MB). Free memory was 173.3 MB in the beginning and 171.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 340.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:02,829 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 636.88 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 170.1 MB in the end (delta: -68.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.67 ms. Allocated memory is still 202.9 MB. Free memory was 170.1 MB in the beginning and 166.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1212.94 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.0 MB in the beginning and 174.8 MB in the end (delta: -8.7 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17356.04 ms. Allocated memory was 235.9 MB in the beginning and 574.6 MB in the end (delta: 338.7 MB). Free memory was 173.3 MB in the beginning and 171.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 340.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 883]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L136] int cleanupTimeShifts = 4; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L675] int pumpRunning = 0; [L676] int systemActive = 1; [L215] int retValue_acc ; [L216] int tmp ; [L220] FCALL select_helpers() [L221] FCALL select_features() [L222] CALL, EXPR valid_product() [L914] int retValue_acc ; [L917] retValue_acc = 1 [L918] return (retValue_acc); [L222] RET, EXPR valid_product() [L222] tmp = valid_product() [L224] COND TRUE \read(tmp) [L226] FCALL setup() [L227] CALL runTest() [L206] CALL test() [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 [L615] COND TRUE 1 [L617] COND TRUE splverifierCounter < 4 [L623] tmp = __VERIFIER_nondet_int() [L625] COND TRUE \read(tmp) [L627] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L627] RET waterRise() [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND TRUE \read(tmp___2) [L647] CALL startSystem() [L874] systemActive = 1 [L647] RET startSystem() [L660] CALL timeShift() [L683] COND FALSE !(\read(pumpRunning)) [L690] COND TRUE \read(systemActive) [L692] CALL processEnvironment() [L738] int tmp ; [L741] COND FALSE !(\read(pumpRunning)) [L756] CALL processEnvironment__wrappee__methaneQuery() [L712] int tmp ; [L715] COND FALSE !(\read(pumpRunning)) [L730] FCALL processEnvironment__wrappee__base() [L756] RET processEnvironment__wrappee__methaneQuery() [L692] RET processEnvironment() [L698] CALL __utac_acc__Specification3_spec__1() [L924] int tmp ; [L925] int tmp___0 ; [L926] int tmp___1 ; [L930] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L930] RET, EXPR isMethaneLevelCritical() [L930] tmp = isMethaneLevelCritical() [L932] COND FALSE !(\read(tmp)) [L936] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L936] RET, EXPR getWaterLevel() [L936] tmp___0 = getWaterLevel() [L938] COND TRUE tmp___0 == 2 [L940] CALL, EXPR isPumpRunning() [L807] int retValue_acc ; [L810] retValue_acc = pumpRunning [L811] return (retValue_acc); [L940] RET, EXPR isPumpRunning() [L940] tmp___1 = isPumpRunning() [L942] COND FALSE !(\read(tmp___1)) [L946] CALL __automaton_fail() [L883] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 634 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1131 SDtfs, 2092 SDslu, 1389 SDs, 0 SdLazy, 2992 SolverSat, 681 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 368 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...