/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_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:22:54,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:22:54,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:22:54,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:22:54,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:22:54,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:22:54,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:22:54,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:22:54,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:22:54,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:22:54,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:22:54,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:22:54,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:22:54,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:22:54,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:22:54,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:22:54,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:22:54,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:22:54,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:22:54,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:22:54,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:22:54,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:22:54,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:22:54,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:22:54,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:22:54,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:22:54,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:22:54,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:22:54,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:22:54,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:22:54,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:22:54,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:22:54,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:22:54,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:22:54,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:22:54,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:22:54,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:22:54,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:22:54,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:22:54,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:22:54,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:22:54,220 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 15:22:54,231 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:22:54,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:22:54,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:22:54,233 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:22:54,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:22:54,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:22:54,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:22:54,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:22:54,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:22:54,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:22:54,234 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:22:54,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:22:54,235 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:22:54,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:22:54,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:22:54,235 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:22:54,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:22:54,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:22:54,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:22:54,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:22:54,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:22:54,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:22:54,237 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:22:54,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:22:54,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:22:54,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:22:54,705 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:22:54,706 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:22:54,707 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c [2020-09-04 15:22:54,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/989282e3f/5fee545395ae4c50836baaff0d8b91d3/FLAG3ddf34568 [2020-09-04 15:22:55,403 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:22:55,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c [2020-09-04 15:22:55,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/989282e3f/5fee545395ae4c50836baaff0d8b91d3/FLAG3ddf34568 [2020-09-04 15:22:55,684 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/989282e3f/5fee545395ae4c50836baaff0d8b91d3 [2020-09-04 15:22:55,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:22:55,698 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:22:55,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:22:55,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:22:55,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:22:55,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:22:55" (1/1) ... [2020-09-04 15:22:55,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:55, skipping insertion in model container [2020-09-04 15:22:55,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:22:55" (1/1) ... [2020-09-04 15:22:55,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:22:55,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:22:56,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:22:56,264 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:22:56,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:22:56,387 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:22:56,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:56 WrapperNode [2020-09-04 15:22:56,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:22:56,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:22:56,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:22:56,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:22:56,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:56" (1/1) ... [2020-09-04 15:22:56,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:56" (1/1) ... [2020-09-04 15:22:56,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:56" (1/1) ... [2020-09-04 15:22:56,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:56" (1/1) ... [2020-09-04 15:22:56,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:56" (1/1) ... [2020-09-04 15:22:56,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:56" (1/1) ... [2020-09-04 15:22:56,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:56" (1/1) ... [2020-09-04 15:22:56,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:22:56,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:22:56,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:22:56,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:22:56,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:56" (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 15:22:56,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:22:56,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:22:56,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:22:56,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:22:56,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:22:56,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:22:56,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:22:56,576 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:22:56,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:22:56,577 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:22:56,577 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 15:22:56,577 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:22:56,577 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-04 15:22:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:22:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:22:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:22:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:22:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:22:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 15:22:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:22:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:22:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:22:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:22:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:22:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:22:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:22:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:22:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:22:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:22:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:22:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:22:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:22:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:22:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:22:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:22:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:22:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:22:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:22:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:22:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:22:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:22:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:22:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:22:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:22:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:22:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:22:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:22:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:22:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:22:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:22:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:22:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:22:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:22:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:22:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:22:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 15:22:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:22:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 15:22:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:22:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-04 15:22:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:22:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:22:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:22:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:22:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:22:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:22:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:22:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:22:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:22:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:22:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:22:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:22:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:22:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:22:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:22:56,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:22:56,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:22:56,589 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:22:56,589 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:22:56,589 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:22:56,589 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:22:56,590 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:22:56,590 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:22:56,590 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:22:56,590 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:22:56,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:22:56,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:22:56,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:22:57,702 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:22:57,702 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:22:57,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:22:57 BoogieIcfgContainer [2020-09-04 15:22:57,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:22:57,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:22:57,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:22:57,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:22:57,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:22:55" (1/3) ... [2020-09-04 15:22:57,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8b8d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:22:57, skipping insertion in model container [2020-09-04 15:22:57,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:56" (2/3) ... [2020-09-04 15:22:57,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8b8d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:22:57, skipping insertion in model container [2020-09-04 15:22:57,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:22:57" (3/3) ... [2020-09-04 15:22:57,718 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2020-09-04 15:22:57,729 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:22:57,740 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:22:57,762 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:22:57,787 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:22:57,787 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:22:57,788 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:22:57,788 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:22:57,788 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:22:57,788 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:22:57,788 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:22:57,788 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:22:57,811 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states. [2020-09-04 15:22:57,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 15:22:57,834 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:22:57,836 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 15:22:57,836 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:22:57,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:22:57,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1270586299, now seen corresponding path program 1 times [2020-09-04 15:22:57,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:22:57,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533732742] [2020-09-04 15:22:57,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:22:57,938 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:22:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:58,636 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:22:58,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:22:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:58,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:22:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:58,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:22:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:58,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:22:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:58,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:22:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:58,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:22:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:58,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:22:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:58,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:22:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:58,878 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 15:22:58,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533732742] [2020-09-04 15:22:58,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:22:58,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:22:58,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936436528] [2020-09-04 15:22:58,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:22:58,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:22:58,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:22:58,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:22:58,926 INFO L87 Difference]: Start difference. First operand 289 states. Second operand 3 states. [2020-09-04 15:23:00,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:23:00,190 INFO L93 Difference]: Finished difference Result 422 states and 505 transitions. [2020-09-04 15:23:00,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:23:00,193 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 15:23:00,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:23:00,213 INFO L225 Difference]: With dead ends: 422 [2020-09-04 15:23:00,213 INFO L226 Difference]: Without dead ends: 268 [2020-09-04 15:23:00,219 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 [2020-09-04 15:23:00,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-04 15:23:00,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2020-09-04 15:23:00,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-04 15:23:00,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 246 transitions. [2020-09-04 15:23:00,353 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 246 transitions. Word has length 153 [2020-09-04 15:23:00,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:23:00,354 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 246 transitions. [2020-09-04 15:23:00,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:23:00,354 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 246 transitions. [2020-09-04 15:23:00,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 15:23:00,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:23:00,359 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 15:23:00,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:23:00,359 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:23:00,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:23:00,360 INFO L82 PathProgramCache]: Analyzing trace with hash 861129864, now seen corresponding path program 1 times [2020-09-04 15:23:00,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:23:00,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943162511] [2020-09-04 15:23:00,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:23:00,364 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:23:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:00,741 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:23:00,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:23:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:00,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:23:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:00,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:23:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:00,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:23:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:00,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:23:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:00,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 15:23:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:00,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 15:23:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:00,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 15:23:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:00,860 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 15:23:00,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [943162511] [2020-09-04 15:23:00,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:23:00,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:23:00,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082373815] [2020-09-04 15:23:00,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:23:00,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:23:00,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:23:00,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:23:00,864 INFO L87 Difference]: Start difference. First operand 228 states and 246 transitions. Second operand 4 states. [2020-09-04 15:23:01,490 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:23:02,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:23:02,240 INFO L93 Difference]: Finished difference Result 335 states and 376 transitions. [2020-09-04 15:23:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:23:02,244 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 15:23:02,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:23:02,248 INFO L225 Difference]: With dead ends: 335 [2020-09-04 15:23:02,248 INFO L226 Difference]: Without dead ends: 251 [2020-09-04 15:23:02,250 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 [2020-09-04 15:23:02,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-09-04 15:23:02,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 218. [2020-09-04 15:23:02,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-04 15:23:02,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 233 transitions. [2020-09-04 15:23:02,320 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 233 transitions. Word has length 154 [2020-09-04 15:23:02,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:23:02,321 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 233 transitions. [2020-09-04 15:23:02,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:23:02,321 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 233 transitions. [2020-09-04 15:23:02,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 15:23:02,324 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:23:02,324 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] [2020-09-04 15:23:02,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:23:02,325 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:23:02,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:23:02,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1052944498, now seen corresponding path program 1 times [2020-09-04 15:23:02,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:23:02,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393287676] [2020-09-04 15:23:02,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:23:02,329 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:23:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:02,762 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:23:02,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:23:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:02,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:23:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:02,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:23:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:02,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:23:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:02,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:23:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:02,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:23:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:02,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 15:23:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:02,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 15:23:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:02,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 15:23:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:02,915 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 15:23:02,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393287676] [2020-09-04 15:23:02,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:23:02,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 15:23:02,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337586832] [2020-09-04 15:23:02,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 15:23:02,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:23:02,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 15:23:02,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 15:23:02,918 INFO L87 Difference]: Start difference. First operand 218 states and 233 transitions. Second operand 10 states. [2020-09-04 15:23:03,424 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:23:03,808 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:23:04,130 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 15:23:04,423 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:23:04,731 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:23:05,056 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:23:06,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:23:06,518 INFO L93 Difference]: Finished difference Result 381 states and 438 transitions. [2020-09-04 15:23:06,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 15:23:06,523 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 15:23:06,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:23:06,526 INFO L225 Difference]: With dead ends: 381 [2020-09-04 15:23:06,526 INFO L226 Difference]: Without dead ends: 273 [2020-09-04 15:23:06,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-09-04 15:23:06,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-04 15:23:06,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 218. [2020-09-04 15:23:06,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-04 15:23:06,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 232 transitions. [2020-09-04 15:23:06,589 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 232 transitions. Word has length 167 [2020-09-04 15:23:06,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:23:06,590 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 232 transitions. [2020-09-04 15:23:06,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 15:23:06,590 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 232 transitions. [2020-09-04 15:23:06,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-04 15:23:06,592 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:23:06,593 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] [2020-09-04 15:23:06,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:23:06,593 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:23:06,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:23:06,594 INFO L82 PathProgramCache]: Analyzing trace with hash 603443649, now seen corresponding path program 1 times [2020-09-04 15:23:06,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:23:06,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761761791] [2020-09-04 15:23:06,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:23:06,597 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:23:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:06,960 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:23:06,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:23:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:07,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:23:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:07,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:23:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:07,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:23:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:07,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:23:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:07,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:23:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:07,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:23:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:07,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:23:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:07,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-04 15:23:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:07,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-04 15:23:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:07,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-04 15:23:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:07,176 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 15:23:07,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761761791] [2020-09-04 15:23:07,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:23:07,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 15:23:07,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673320394] [2020-09-04 15:23:07,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 15:23:07,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:23:07,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 15:23:07,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 15:23:07,180 INFO L87 Difference]: Start difference. First operand 218 states and 232 transitions. Second operand 10 states. [2020-09-04 15:23:07,766 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:23:09,737 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:23:10,035 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:23:10,352 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:23:10,624 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:23:10,934 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:23:11,413 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:23:11,704 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:23:12,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:23:12,366 INFO L93 Difference]: Finished difference Result 592 states and 734 transitions. [2020-09-04 15:23:12,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-04 15:23:12,368 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-09-04 15:23:12,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:23:12,380 INFO L225 Difference]: With dead ends: 592 [2020-09-04 15:23:12,380 INFO L226 Difference]: Without dead ends: 484 [2020-09-04 15:23:12,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-09-04 15:23:12,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2020-09-04 15:23:12,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 318. [2020-09-04 15:23:12,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-09-04 15:23:12,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 349 transitions. [2020-09-04 15:23:12,503 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 349 transitions. Word has length 175 [2020-09-04 15:23:12,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:23:12,504 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 349 transitions. [2020-09-04 15:23:12,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 15:23:12,504 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 349 transitions. [2020-09-04 15:23:12,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-04 15:23:12,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:23:12,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:23:12,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:23:12,509 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:23:12,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:23:12,509 INFO L82 PathProgramCache]: Analyzing trace with hash -510510222, now seen corresponding path program 1 times [2020-09-04 15:23:12,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:23:12,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724433420] [2020-09-04 15:23:12,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:23:12,512 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:23:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:23:12,591 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:23:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:23:12,673 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:23:12,891 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:23:12,891 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:23:12,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:23:12,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:23:12 BoogieIcfgContainer [2020-09-04 15:23:12,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:23:12,926 INFO L168 Benchmark]: Toolchain (without parser) took 17228.29 ms. Allocated memory was 145.2 MB in the beginning and 541.1 MB in the end (delta: 395.8 MB). Free memory was 101.5 MB in the beginning and 481.3 MB in the end (delta: -379.7 MB). Peak memory consumption was 370.0 MB. Max. memory is 7.1 GB. [2020-09-04 15:23:12,926 INFO L168 Benchmark]: CDTParser took 1.47 ms. Allocated memory is still 145.2 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 15:23:12,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.10 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 171.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-09-04 15:23:12,928 INFO L168 Benchmark]: Boogie Preprocessor took 105.82 ms. Allocated memory is still 202.9 MB. Free memory was 171.1 MB in the beginning and 167.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-04 15:23:12,929 INFO L168 Benchmark]: RCFGBuilder took 1214.64 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 167.0 MB in the beginning and 179.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2020-09-04 15:23:12,930 INFO L168 Benchmark]: TraceAbstraction took 15213.38 ms. Allocated memory was 234.9 MB in the beginning and 541.1 MB in the end (delta: 306.2 MB). Free memory was 179.2 MB in the beginning and 481.3 MB in the end (delta: -302.1 MB). Peak memory consumption was 358.0 MB. Max. memory is 7.1 GB. [2020-09-04 15:23:12,934 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.47 ms. Allocated memory is still 145.2 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.10 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 171.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.82 ms. Allocated memory is still 202.9 MB. Free memory was 171.1 MB in the beginning and 167.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1214.64 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 167.0 MB in the beginning and 179.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15213.38 ms. Allocated memory was 234.9 MB in the beginning and 541.1 MB in the end (delta: 306.2 MB). Free memory was 179.2 MB in the beginning and 481.3 MB in the end (delta: -302.1 MB). Peak memory consumption was 358.0 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: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L458] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L725] int cleanupTimeShifts = 4; [L821] int waterLevel = 1; [L822] int methaneLevelCritical = 0; [L798] int retValue_acc ; [L799] int tmp ; [L803] FCALL select_helpers() [L804] FCALL select_features() [L805] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L805] RET, EXPR valid_product() [L805] tmp = valid_product() [L807] COND TRUE \read(tmp) [L809] FCALL setup() [L810] CALL runTest() [L792] CALL test() [L659] int splverifierCounter ; [L660] int tmp ; [L661] int tmp___0 ; [L662] int tmp___1 ; [L663] int tmp___2 ; [L666] splverifierCounter = 0 [L668] COND TRUE 1 [L670] COND TRUE splverifierCounter < 4 [L676] tmp = __VERIFIER_nondet_int() [L678] COND TRUE \read(tmp) [L680] CALL waterRise() [L839] COND TRUE waterLevel < 2 [L840] waterLevel = waterLevel + 1 [L680] RET waterRise() [L686] tmp___0 = __VERIFIER_nondet_int() [L688] COND FALSE !(\read(tmp___0)) [L696] tmp___2 = __VERIFIER_nondet_int() [L698] COND TRUE \read(tmp___2) [L700] CALL startSystem() [L284] systemActive = 1 [L700] RET startSystem() [L713] CALL timeShift() [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L147] CALL processEnvironment() [L167] int tmp ; [L170] COND FALSE !(\read(pumpRunning)) [L185] FCALL processEnvironment__wrappee__methaneQuery() [L147] RET processEnvironment() [L153] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L860] int retValue_acc ; [L863] retValue_acc = methaneLevelCritical [L864] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L892] int retValue_acc ; [L895] retValue_acc = waterLevel [L896] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L236] int retValue_acc ; [L239] retValue_acc = pumpRunning [L240] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 603 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 838 SDtfs, 1337 SDslu, 1238 SDs, 0 SdLazy, 2348 SolverSat, 454 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 294 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...