/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_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:32:55,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:32:55,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:32:56,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:32:56,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:32:56,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:32:56,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:32:56,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:32:56,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:32:56,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:32:56,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:32:56,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:32:56,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:32:56,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:32:56,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:32:56,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:32:56,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:32:56,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:32:56,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:32:56,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:32:56,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:32:56,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:32:56,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:32:56,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:32:56,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:32:56,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:32:56,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:32:56,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:32:56,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:32:56,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:32:56,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:32:56,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:32:56,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:32:56,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:32:56,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:32:56,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:32:56,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:32:56,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:32:56,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:32:56,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:32:56,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:32:56,041 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 12:32:56,051 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:32:56,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:32:56,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:32:56,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:32:56,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:32:56,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:32:56,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:32:56,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:32:56,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:32:56,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:32:56,054 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:32:56,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:32:56,054 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:32:56,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:32:56,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:32:56,055 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:32:56,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:32:56,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:32:56,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:32:56,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:32:56,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:32:56,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:32:56,056 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:32:56,390 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:32:56,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:32:56,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:32:56,416 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:32:56,417 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:32:56,418 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-07-07 12:32:56,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd699cea3/4a82ab3b1f4842af9054f92f7be69478/FLAG29da0bba4 [2020-07-07 12:32:57,062 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:32:57,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-07-07 12:32:57,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd699cea3/4a82ab3b1f4842af9054f92f7be69478/FLAG29da0bba4 [2020-07-07 12:32:57,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd699cea3/4a82ab3b1f4842af9054f92f7be69478 [2020-07-07 12:32:57,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:32:57,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:32:57,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:32:57,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:32:57,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:32:57,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:32:57" (1/1) ... [2020-07-07 12:32:57,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60baa336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:57, skipping insertion in model container [2020-07-07 12:32:57,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:32:57" (1/1) ... [2020-07-07 12:32:57,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:32:57,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:32:57,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:32:57,930 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:32:58,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:32:58,043 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:32:58,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:58 WrapperNode [2020-07-07 12:32:58,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:32:58,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:32:58,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:32:58,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:32:58,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:58" (1/1) ... [2020-07-07 12:32:58,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:58" (1/1) ... [2020-07-07 12:32:58,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:58" (1/1) ... [2020-07-07 12:32:58,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:58" (1/1) ... [2020-07-07 12:32:58,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:58" (1/1) ... [2020-07-07 12:32:58,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:58" (1/1) ... [2020-07-07 12:32:58,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:58" (1/1) ... [2020-07-07 12:32:58,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:32:58,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:32:58,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:32:58,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:32:58,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:58" (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 12:32:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:32:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:32:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:32:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:32:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:32:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:32:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:32:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:32:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:32:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:32:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:32:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:32:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:32:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:32:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:32:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:32:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:32:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:32:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:32:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-07 12:32:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:32:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:32:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:32:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:32:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:32:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:32:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 12:32:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:32:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:32:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:32:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:32:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:32:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:32:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:32:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:32:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:32:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:32:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:32:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:32:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:32:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:32:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:32:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:32:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:32:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:32:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:32:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:32:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:32:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:32:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:32:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:32:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:32:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:32:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:32:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:32:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:32:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:32:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:32:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:32:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:32:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:32:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:32:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:32:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:32:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:32:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:32:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:32:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:32:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:32:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:32:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:32:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:32:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 12:32:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:32:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:32:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:32:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:32:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:32:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:32:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:32:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:32:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:32:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:32:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:32:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-07 12:32:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:32:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:32:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:32:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:32:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:32:59,351 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:32:59,351 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:32:59,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:32:59 BoogieIcfgContainer [2020-07-07 12:32:59,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:32:59,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:32:59,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:32:59,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:32:59,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:32:57" (1/3) ... [2020-07-07 12:32:59,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440c2729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:32:59, skipping insertion in model container [2020-07-07 12:32:59,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:58" (2/3) ... [2020-07-07 12:32:59,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440c2729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:32:59, skipping insertion in model container [2020-07-07 12:32:59,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:32:59" (3/3) ... [2020-07-07 12:32:59,366 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-07-07 12:32:59,377 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:32:59,385 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:32:59,398 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:32:59,420 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:32:59,420 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:32:59,421 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:32:59,421 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:32:59,421 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:32:59,421 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:32:59,422 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:32:59,422 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:32:59,443 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-07-07 12:32:59,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:32:59,464 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:59,465 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 12:32:59,465 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:59,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:59,470 INFO L82 PathProgramCache]: Analyzing trace with hash -2058846521, now seen corresponding path program 1 times [2020-07-07 12:32:59,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:59,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250249231] [2020-07-07 12:32:59,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:00,170 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:00,450 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 12:33:00,450 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:00,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250249231] [2020-07-07 12:33:00,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:00,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:33:00,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204226395] [2020-07-07 12:33:00,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:33:00,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:00,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:33:00,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:00,489 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 3 states. [2020-07-07 12:33:01,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:01,757 INFO L93 Difference]: Finished difference Result 436 states and 524 transitions. [2020-07-07 12:33:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:33:01,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:33:01,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:01,776 INFO L225 Difference]: With dead ends: 436 [2020-07-07 12:33:01,776 INFO L226 Difference]: Without dead ends: 276 [2020-07-07 12:33:01,781 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 12:33:01,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-07-07 12:33:01,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2020-07-07 12:33:01,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-07-07 12:33:01,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 254 transitions. [2020-07-07 12:33:01,941 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 254 transitions. Word has length 153 [2020-07-07 12:33:01,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:01,942 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 254 transitions. [2020-07-07 12:33:01,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:33:01,942 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 254 transitions. [2020-07-07 12:33:01,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:33:01,952 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:01,952 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 12:33:01,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:33:01,953 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:01,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:01,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1620128513, now seen corresponding path program 1 times [2020-07-07 12:33:01,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:01,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697522395] [2020-07-07 12:33:01,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:02,280 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:02,355 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 12:33:02,356 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:02,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697522395] [2020-07-07 12:33:02,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:02,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:33:02,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549852593] [2020-07-07 12:33:02,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:33:02,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:02,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:33:02,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:33:02,359 INFO L87 Difference]: Start difference. First operand 234 states and 254 transitions. Second operand 4 states. [2020-07-07 12:33:03,040 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:03,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:03,832 INFO L93 Difference]: Finished difference Result 343 states and 387 transitions. [2020-07-07 12:33:03,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:33:03,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:33:03,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:03,837 INFO L225 Difference]: With dead ends: 343 [2020-07-07 12:33:03,837 INFO L226 Difference]: Without dead ends: 259 [2020-07-07 12:33:03,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:33:03,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-07 12:33:03,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-07-07 12:33:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-07-07 12:33:03,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 241 transitions. [2020-07-07 12:33:03,914 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 241 transitions. Word has length 154 [2020-07-07 12:33:03,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:03,915 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 241 transitions. [2020-07-07 12:33:03,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:33:03,915 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 241 transitions. [2020-07-07 12:33:03,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-07 12:33:03,918 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:03,918 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 12:33:03,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:33:03,918 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:03,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:03,919 INFO L82 PathProgramCache]: Analyzing trace with hash 43350617, now seen corresponding path program 1 times [2020-07-07 12:33:03,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:03,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968409335] [2020-07-07 12:33:03,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:04,270 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:04,496 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 12:33:04,497 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:04,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968409335] [2020-07-07 12:33:04,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:04,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:33:04,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351973458] [2020-07-07 12:33:04,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:33:04,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:04,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:33:04,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:33:04,501 INFO L87 Difference]: Start difference. First operand 224 states and 241 transitions. Second operand 10 states. [2020-07-07 12:33:05,129 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:05,444 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:33:05,690 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:33:05,945 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:06,213 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:06,448 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:07,386 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:09,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:09,402 INFO L93 Difference]: Finished difference Result 614 states and 719 transitions. [2020-07-07 12:33:09,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 12:33:09,403 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-07-07 12:33:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:09,413 INFO L225 Difference]: With dead ends: 614 [2020-07-07 12:33:09,413 INFO L226 Difference]: Without dead ends: 500 [2020-07-07 12:33:09,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-07-07 12:33:09,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-07-07 12:33:09,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 409. [2020-07-07 12:33:09,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-07-07 12:33:09,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 458 transitions. [2020-07-07 12:33:09,570 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 458 transitions. Word has length 167 [2020-07-07 12:33:09,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:09,571 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 458 transitions. [2020-07-07 12:33:09,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:33:09,571 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 458 transitions. [2020-07-07 12:33:09,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:33:09,574 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:09,575 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] [2020-07-07 12:33:09,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:33:09,576 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:09,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:09,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1596285256, now seen corresponding path program 1 times [2020-07-07 12:33:09,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:09,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286950668] [2020-07-07 12:33:09,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,906 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:10,061 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 12:33:10,062 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:10,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286950668] [2020-07-07 12:33:10,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:10,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:10,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102073546] [2020-07-07 12:33:10,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:10,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:10,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:10,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:10,065 INFO L87 Difference]: Start difference. First operand 409 states and 458 transitions. Second operand 9 states. [2020-07-07 12:33:10,586 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:12,278 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:12,557 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:12,835 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:13,132 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:13,387 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:13,636 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:13,875 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:14,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:14,643 INFO L93 Difference]: Finished difference Result 1085 states and 1315 transitions. [2020-07-07 12:33:14,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:33:14,644 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:33:14,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:14,651 INFO L225 Difference]: With dead ends: 1085 [2020-07-07 12:33:14,651 INFO L226 Difference]: Without dead ends: 786 [2020-07-07 12:33:14,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:33:14,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2020-07-07 12:33:14,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 687. [2020-07-07 12:33:14,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 687 states. [2020-07-07 12:33:14,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 793 transitions. [2020-07-07 12:33:14,898 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 793 transitions. Word has length 172 [2020-07-07 12:33:14,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:14,899 INFO L479 AbstractCegarLoop]: Abstraction has 687 states and 793 transitions. [2020-07-07 12:33:14,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:33:14,899 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 793 transitions. [2020-07-07 12:33:14,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:33:14,905 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:14,906 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] [2020-07-07 12:33:14,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:33:14,906 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:14,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:14,907 INFO L82 PathProgramCache]: Analyzing trace with hash -469830621, now seen corresponding path program 1 times [2020-07-07 12:33:14,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:14,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022282148] [2020-07-07 12:33:14,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,179 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,297 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 12:33:15,297 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:15,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022282148] [2020-07-07 12:33:15,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:15,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:33:15,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749429085] [2020-07-07 12:33:15,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:33:15,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:15,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:33:15,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:33:15,299 INFO L87 Difference]: Start difference. First operand 687 states and 793 transitions. Second operand 6 states. [2020-07-07 12:33:15,806 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:16,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:16,806 INFO L93 Difference]: Finished difference Result 1204 states and 1445 transitions. [2020-07-07 12:33:16,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 12:33:16,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-07 12:33:16,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:16,812 INFO L225 Difference]: With dead ends: 1204 [2020-07-07 12:33:16,812 INFO L226 Difference]: Without dead ends: 627 [2020-07-07 12:33:16,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:33:16,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2020-07-07 12:33:17,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 550. [2020-07-07 12:33:17,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-07-07 12:33:17,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 601 transitions. [2020-07-07 12:33:17,014 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 601 transitions. Word has length 177 [2020-07-07 12:33:17,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:17,015 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 601 transitions. [2020-07-07 12:33:17,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:33:17,015 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 601 transitions. [2020-07-07 12:33:17,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:33:17,018 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:17,019 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] [2020-07-07 12:33:17,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:33:17,019 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:17,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:17,020 INFO L82 PathProgramCache]: Analyzing trace with hash 204325415, now seen corresponding path program 1 times [2020-07-07 12:33:17,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:17,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926730074] [2020-07-07 12:33:17,021 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:33:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:33:17,356 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:17,357 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:33:17,357 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:33:17,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:33:17,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:33:17 BoogieIcfgContainer [2020-07-07 12:33:17,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:33:17,395 INFO L168 Benchmark]: Toolchain (without parser) took 20043.75 ms. Allocated memory was 141.6 MB in the beginning and 622.9 MB in the end (delta: 481.3 MB). Free memory was 98.6 MB in the beginning and 74.1 MB in the end (delta: 24.5 MB). Peak memory consumption was 505.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:17,396 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory is still 117.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 12:33:17,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.34 ms. Allocated memory was 141.6 MB in the beginning and 198.7 MB in the end (delta: 57.1 MB). Free memory was 98.6 MB in the beginning and 167.9 MB in the end (delta: -69.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:17,398 INFO L168 Benchmark]: Boogie Preprocessor took 90.56 ms. Allocated memory is still 198.7 MB. Free memory was 167.9 MB in the beginning and 163.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:17,399 INFO L168 Benchmark]: RCFGBuilder took 1223.56 ms. Allocated memory was 198.7 MB in the beginning and 224.4 MB in the end (delta: 25.7 MB). Free memory was 163.6 MB in the beginning and 176.0 MB in the end (delta: -12.4 MB). Peak memory consumption was 92.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:17,400 INFO L168 Benchmark]: TraceAbstraction took 18033.41 ms. Allocated memory was 224.4 MB in the beginning and 622.9 MB in the end (delta: 398.5 MB). Free memory was 176.0 MB in the beginning and 74.1 MB in the end (delta: 101.9 MB). Peak memory consumption was 500.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:17,407 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory is still 117.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 691.34 ms. Allocated memory was 141.6 MB in the beginning and 198.7 MB in the end (delta: 57.1 MB). Free memory was 98.6 MB in the beginning and 167.9 MB in the end (delta: -69.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.56 ms. Allocated memory is still 198.7 MB. Free memory was 167.9 MB in the beginning and 163.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1223.56 ms. Allocated memory was 198.7 MB in the beginning and 224.4 MB in the end (delta: 25.7 MB). Free memory was 163.6 MB in the beginning and 176.0 MB in the end (delta: -12.4 MB). Peak memory consumption was 92.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18033.41 ms. Allocated memory was 224.4 MB in the beginning and 622.9 MB in the end (delta: 398.5 MB). Free memory was 176.0 MB in the beginning and 74.1 MB in the end (delta: 101.9 MB). Peak memory consumption was 500.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L322] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L130] int retValue_acc ; [L131] int tmp ; [L135] FCALL select_helpers() [L136] FCALL select_features() [L137] CALL, EXPR valid_product() [L796] int retValue_acc ; [L799] retValue_acc = 1 [L800] return (retValue_acc); [L137] RET, EXPR valid_product() [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L141] FCALL setup() [L142] CALL runTest() [L121] CALL test() [L522] int splverifierCounter ; [L523] int tmp ; [L524] int tmp___0 ; [L525] int tmp___1 ; [L526] int tmp___2 ; [L529] splverifierCounter = 0 [L531] COND TRUE 1 [L533] COND TRUE splverifierCounter < 4 [L539] tmp = __VERIFIER_nondet_int() [L541] COND TRUE \read(tmp) [L543] CALL waterRise() [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 [L543] RET waterRise() [L549] tmp___0 = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp___0)) [L559] tmp___2 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___2)) [L567] tmp___1 = __VERIFIER_nondet_int() [L569] COND TRUE \read(tmp___1) [L571] CALL stopSystem() [L750] COND FALSE !(\read(pumpRunning)) [L757] systemActive = 0 [L571] RET stopSystem() [L578] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND FALSE !(\read(systemActive)) [L619] CALL __utac_acc__Specification3_spec__1() [L887] int tmp ; [L888] int tmp___0 ; [L889] int tmp___1 ; [L893] CALL, EXPR isMethaneLevelCritical() [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); [L893] RET, EXPR isMethaneLevelCritical() [L893] tmp = isMethaneLevelCritical() [L895] COND FALSE !(\read(tmp)) [L899] CALL, EXPR getWaterLevel() [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] return (retValue_acc); [L899] RET, EXPR getWaterLevel() [L899] tmp___0 = getWaterLevel() [L901] COND TRUE tmp___0 == 2 [L903] CALL, EXPR isPumpRunning() [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); [L903] RET, EXPR isPumpRunning() [L903] tmp___1 = isPumpRunning() [L905] COND FALSE !(\read(tmp___1)) [L909] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1096 SDtfs, 1773 SDslu, 1538 SDs, 0 SdLazy, 2961 SolverSat, 641 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=687occurred 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: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 344 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...