/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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:24:00,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:24:00,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:24:00,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:24:00,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:24:00,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:24:00,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:24:00,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:24:00,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:24:00,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:24:00,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:24:00,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:24:00,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:24:00,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:24:00,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:24:00,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:24:00,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:24:00,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:24:00,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:24:00,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:24:00,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:24:00,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:24:00,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:24:00,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:24:00,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:24:00,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:24:00,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:24:00,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:24:00,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:24:00,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:24:00,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:24:00,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:24:00,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:24:00,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:24:00,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:24:00,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:24:00,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:24:00,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:24:00,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:24:00,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:24:00,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:24:00,962 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 15:24:00,973 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:24:00,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:24:00,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:24:00,975 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:24:00,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:24:00,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:24:00,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:24:00,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:24:00,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:24:00,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:24:00,977 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:24:00,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:24:00,977 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:24:00,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:24:00,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:24:00,978 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:24:00,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:24:00,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:24:00,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:24:00,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:24:00,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:24:00,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:24:00,979 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:24:01,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:24:01,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:24:01,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:24:01,427 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:24:01,427 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:24:01,429 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-09-04 15:24:01,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4185b0624/12f2413cf1514607a74ec2cc89ab3717/FLAG4fc23aa2b [2020-09-04 15:24:02,146 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:24:02,147 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-09-04 15:24:02,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4185b0624/12f2413cf1514607a74ec2cc89ab3717/FLAG4fc23aa2b [2020-09-04 15:24:02,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4185b0624/12f2413cf1514607a74ec2cc89ab3717 [2020-09-04 15:24:02,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:24:02,405 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:24:02,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:24:02,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:24:02,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:24:02,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:24:02" (1/1) ... [2020-09-04 15:24:02,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:02, skipping insertion in model container [2020-09-04 15:24:02,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:24:02" (1/1) ... [2020-09-04 15:24:02,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:24:02,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:24:02,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:24:02,936 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:24:03,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:24:03,051 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:24:03,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:03 WrapperNode [2020-09-04 15:24:03,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:24:03,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:24:03,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:24:03,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:24:03,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:03" (1/1) ... [2020-09-04 15:24:03,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:03" (1/1) ... [2020-09-04 15:24:03,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:03" (1/1) ... [2020-09-04 15:24:03,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:03" (1/1) ... [2020-09-04 15:24:03,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:03" (1/1) ... [2020-09-04 15:24:03,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:03" (1/1) ... [2020-09-04 15:24:03,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:03" (1/1) ... [2020-09-04 15:24:03,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:24:03,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:24:03,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:24:03,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:24:03,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 15:24:03,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:24:03,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:24:03,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:24:03,272 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:24:03,272 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:24:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:24:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:24:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:24:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:24:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 15:24:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:24:03,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:24:03,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:24:03,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:24:03,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:24:03,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:24:03,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:24:03,275 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:24:03,275 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:24:03,275 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:24:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 15:24:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:24:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-04 15:24:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:24:03,277 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:24:03,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:24:03,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:24:03,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:24:03,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 15:24:03,277 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 15:24:03,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:24:03,278 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:24:03,278 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:24:03,278 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:24:03,278 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:24:03,278 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:24:03,279 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:24:03,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:24:03,279 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:24:03,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:24:03,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:24:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:24:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:24:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:24:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:24:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:24:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:24:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:24:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:24:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 15:24:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:24:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:24:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:24:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:24:03,282 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:24:03,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:24:03,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:24:03,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:24:03,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:24:03,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:24:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:24:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:24:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:24:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:24:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:24:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:24:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:24:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:24:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 15:24:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:24:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:24:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:24:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:24:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:24:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:24:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:24:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:24:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:24:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:24:03,286 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 15:24:03,286 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 15:24:03,286 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:24:03,286 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-04 15:24:03,286 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:24:03,286 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:24:03,287 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:24:03,287 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:24:03,287 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:24:03,287 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:24:03,287 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:24:03,287 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:24:03,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:24:03,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:24:03,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:24:04,395 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:24:04,396 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:24:04,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:24:04 BoogieIcfgContainer [2020-09-04 15:24:04,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:24:04,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:24:04,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:24:04,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:24:04,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:24:02" (1/3) ... [2020-09-04 15:24:04,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2a778e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:24:04, skipping insertion in model container [2020-09-04 15:24:04,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:03" (2/3) ... [2020-09-04 15:24:04,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2a778e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:24:04, skipping insertion in model container [2020-09-04 15:24:04,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:24:04" (3/3) ... [2020-09-04 15:24:04,417 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-09-04 15:24:04,428 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:24:04,443 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:24:04,466 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:24:04,499 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:24:04,499 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:24:04,499 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:24:04,500 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:24:04,500 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:24:04,500 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:24:04,501 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:24:04,501 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:24:04,538 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-04 15:24:04,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 15:24:04,582 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:04,583 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] [2020-09-04 15:24:04,584 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:04,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:04,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1392630044, now seen corresponding path program 1 times [2020-09-04 15:24:04,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:04,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968367034] [2020-09-04 15:24:04,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:04,703 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:05,368 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:24:05,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:24:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:05,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:24:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:05,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:24:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:05,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:24:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:05,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:24:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:05,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:24:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:05,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:24:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:05,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:24:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:05,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:24:05,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968367034] [2020-09-04 15:24:05,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:24:05,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:24:05,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000621257] [2020-09-04 15:24:05,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:24:05,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:24:05,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:24:05,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:24:05,606 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-09-04 15:24:07,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:24:07,033 INFO L93 Difference]: Finished difference Result 491 states and 589 transitions. [2020-09-04 15:24:07,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:24:07,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 15:24:07,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:24:07,056 INFO L225 Difference]: With dead ends: 491 [2020-09-04 15:24:07,056 INFO L226 Difference]: Without dead ends: 304 [2020-09-04 15:24:07,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:24:07,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-04 15:24:07,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 261. [2020-09-04 15:24:07,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-04 15:24:07,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 286 transitions. [2020-09-04 15:24:07,201 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 286 transitions. Word has length 153 [2020-09-04 15:24:07,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:24:07,202 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 286 transitions. [2020-09-04 15:24:07,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:24:07,203 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 286 transitions. [2020-09-04 15:24:07,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 15:24:07,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:07,207 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] [2020-09-04 15:24:07,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:24:07,207 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:07,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:07,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1904681825, now seen corresponding path program 1 times [2020-09-04 15:24:07,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:07,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478415477] [2020-09-04 15:24:07,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:07,211 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:07,645 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:24:07,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:24:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:07,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:24:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:07,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:24:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:07,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:24:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:07,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:24:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:07,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 15:24:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:07,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 15:24:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:07,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 15:24:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:07,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:24:07,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478415477] [2020-09-04 15:24:07,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:24:07,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:24:07,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603363666] [2020-09-04 15:24:07,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:24:07,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:24:07,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:24:07,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:24:07,766 INFO L87 Difference]: Start difference. First operand 261 states and 286 transitions. Second operand 4 states. [2020-09-04 15:24:08,441 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:24:09,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:24:09,508 INFO L93 Difference]: Finished difference Result 402 states and 456 transitions. [2020-09-04 15:24:09,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:24:09,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 15:24:09,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:24:09,515 INFO L225 Difference]: With dead ends: 402 [2020-09-04 15:24:09,515 INFO L226 Difference]: Without dead ends: 287 [2020-09-04 15:24:09,518 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 [2020-09-04 15:24:09,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-04 15:24:09,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 251. [2020-09-04 15:24:09,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-09-04 15:24:09,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 273 transitions. [2020-09-04 15:24:09,630 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 273 transitions. Word has length 154 [2020-09-04 15:24:09,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:24:09,631 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 273 transitions. [2020-09-04 15:24:09,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:24:09,631 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 273 transitions. [2020-09-04 15:24:09,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-04 15:24:09,633 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:09,634 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] [2020-09-04 15:24:09,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:24:09,634 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:09,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:09,635 INFO L82 PathProgramCache]: Analyzing trace with hash -533123061, now seen corresponding path program 1 times [2020-09-04 15:24:09,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:09,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1228089520] [2020-09-04 15:24:09,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:09,638 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:10,063 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:24:10,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:24:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:10,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:24:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:10,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:24:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:10,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:24:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:10,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:24:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:10,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:24:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:10,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:24:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:10,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-04 15:24:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:10,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:24:10,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1228089520] [2020-09-04 15:24:10,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:24:10,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:24:10,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515503373] [2020-09-04 15:24:10,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:24:10,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:24:10,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:24:10,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:24:10,251 INFO L87 Difference]: Start difference. First operand 251 states and 273 transitions. Second operand 9 states. [2020-09-04 15:24:10,771 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:24:11,153 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:24:11,445 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:24:11,730 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:12,075 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:24:12,368 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:13,345 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:24:15,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:24:15,783 INFO L93 Difference]: Finished difference Result 675 states and 782 transitions. [2020-09-04 15:24:15,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 15:24:15,785 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-04 15:24:15,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:24:15,790 INFO L225 Difference]: With dead ends: 675 [2020-09-04 15:24:15,790 INFO L226 Difference]: Without dead ends: 534 [2020-09-04 15:24:15,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-04 15:24:15,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2020-09-04 15:24:15,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 467. [2020-09-04 15:24:15,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-09-04 15:24:15,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 526 transitions. [2020-09-04 15:24:15,964 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 526 transitions. Word has length 163 [2020-09-04 15:24:15,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:24:15,965 INFO L479 AbstractCegarLoop]: Abstraction has 467 states and 526 transitions. [2020-09-04 15:24:15,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:24:15,965 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 526 transitions. [2020-09-04 15:24:15,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 15:24:15,968 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:15,968 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] [2020-09-04 15:24:15,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:24:15,969 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:15,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:15,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1712848447, now seen corresponding path program 1 times [2020-09-04 15:24:15,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:15,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412490488] [2020-09-04 15:24:15,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:15,972 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:16,332 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:24:16,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:24:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:16,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:24:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:16,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:24:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:16,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:24:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:16,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:24:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:16,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:24:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:16,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 15:24:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:16,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 15:24:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:16,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 15:24:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:24:16,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412490488] [2020-09-04 15:24:16,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:24:16,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:24:16,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355117509] [2020-09-04 15:24:16,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:24:16,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:24:16,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:24:16,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:24:16,657 INFO L87 Difference]: Start difference. First operand 467 states and 526 transitions. Second operand 9 states. [2020-09-04 15:24:17,330 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:24:19,591 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:19,939 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:24:20,295 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:20,667 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:24:20,935 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:24:21,203 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:21,495 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:22,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:24:22,345 INFO L93 Difference]: Finished difference Result 1264 states and 1525 transitions. [2020-09-04 15:24:22,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 15:24:22,346 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 15:24:22,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:24:22,353 INFO L225 Difference]: With dead ends: 1264 [2020-09-04 15:24:22,353 INFO L226 Difference]: Without dead ends: 907 [2020-09-04 15:24:22,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 15:24:22,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-09-04 15:24:22,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 807. [2020-09-04 15:24:22,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-09-04 15:24:22,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 935 transitions. [2020-09-04 15:24:22,666 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 935 transitions. Word has length 172 [2020-09-04 15:24:22,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:24:22,667 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 935 transitions. [2020-09-04 15:24:22,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:24:22,667 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 935 transitions. [2020-09-04 15:24:22,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 15:24:22,671 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:22,672 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] [2020-09-04 15:24:22,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:24:22,672 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:22,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:22,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1677643238, now seen corresponding path program 1 times [2020-09-04 15:24:22,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:22,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374323476] [2020-09-04 15:24:22,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:22,675 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:24:22,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:24:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:24:22,838 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:24:23,032 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:24:23,032 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:24:23,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:24:23,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:24:23 BoogieIcfgContainer [2020-09-04 15:24:23,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:24:23,063 INFO L168 Benchmark]: Toolchain (without parser) took 20658.89 ms. Allocated memory was 138.4 MB in the beginning and 598.2 MB in the end (delta: 459.8 MB). Free memory was 101.9 MB in the beginning and 369.4 MB in the end (delta: -267.5 MB). Peak memory consumption was 192.4 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:23,064 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 15:24:23,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.15 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 172.1 MB in the end (delta: -70.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:23,066 INFO L168 Benchmark]: Boogie Preprocessor took 124.28 ms. Allocated memory is still 202.9 MB. Free memory was 172.1 MB in the beginning and 167.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:23,067 INFO L168 Benchmark]: RCFGBuilder took 1227.37 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 167.9 MB in the beginning and 176.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:23,068 INFO L168 Benchmark]: TraceAbstraction took 18655.05 ms. Allocated memory was 235.4 MB in the beginning and 598.2 MB in the end (delta: 362.8 MB). Free memory was 175.2 MB in the beginning and 369.4 MB in the end (delta: -194.1 MB). Peak memory consumption was 168.7 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:23,072 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 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 646.15 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 172.1 MB in the end (delta: -70.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.28 ms. Allocated memory is still 202.9 MB. Free memory was 172.1 MB in the beginning and 167.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1227.37 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 167.9 MB in the beginning and 176.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18655.05 ms. Allocated memory was 235.4 MB in the beginning and 598.2 MB in the end (delta: 362.8 MB). Free memory was 175.2 MB in the beginning and 369.4 MB in the end (delta: -194.1 MB). Peak memory consumption was 168.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: 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; [L314] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int pumpRunning = 0; [L586] int systemActive = 1; [L868] int cleanupTimeShifts = 4; [L941] int retValue_acc ; [L942] int tmp ; [L946] FCALL select_helpers() [L947] FCALL select_features() [L948] CALL, EXPR valid_product() [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); [L948] RET, EXPR valid_product() [L948] tmp = valid_product() [L950] COND TRUE \read(tmp) [L952] FCALL setup() [L953] CALL runTest() [L935] CALL test() [L515] int splverifierCounter ; [L516] int tmp ; [L517] int tmp___0 ; [L518] int tmp___1 ; [L519] int tmp___2 ; [L522] splverifierCounter = 0 [L524] COND TRUE 1 [L526] COND TRUE splverifierCounter < 4 [L532] tmp = __VERIFIER_nondet_int() [L534] COND TRUE \read(tmp) [L536] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L536] RET waterRise() [L542] tmp___0 = __VERIFIER_nondet_int() [L544] COND FALSE !(\read(tmp___0)) [L552] tmp___2 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___2)) [L558] tmp___1 = __VERIFIER_nondet_int() [L560] COND TRUE \read(tmp___1) [L562] CALL stopSystem() [L784] COND FALSE !(\read(pumpRunning)) [L791] systemActive = 0 [L562] RET stopSystem() [L569] CALL timeShift() [L593] COND FALSE !(\read(pumpRunning)) [L600] COND FALSE !(\read(systemActive)) [L608] CALL __utac_acc__Specification3_spec__1() [L797] int tmp ; [L798] int tmp___0 ; [L799] int tmp___1 ; [L803] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L809] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L809] RET, EXPR getWaterLevel() [L809] tmp___0 = getWaterLevel() [L811] COND TRUE tmp___0 == 2 [L813] CALL, EXPR isPumpRunning() [L717] int retValue_acc ; [L720] retValue_acc = pumpRunning [L721] return (retValue_acc); [L813] RET, EXPR isPumpRunning() [L813] tmp___1 = isPumpRunning() [L815] COND FALSE !(\read(tmp___1)) [L819] CALL __automaton_fail() [L140] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 636 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1000 SDtfs, 1368 SDslu, 1259 SDs, 0 SdLazy, 3179 SolverSat, 481 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=807occurred 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: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 246 StatesRemovedByMinimization, 4 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...