/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:43:39,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:43:39,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:43:39,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:43:39,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:43:39,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:43:39,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:43:39,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:43:39,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:43:39,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:43:39,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:43:39,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:43:39,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:43:39,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:43:39,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:43:39,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:43:39,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:43:39,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:43:39,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:43:39,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:43:39,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:43:39,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:43:39,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:43:39,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:43:39,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 10:43:39,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 10:43:39,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 10:43:39,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 10:43:39,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 10:43:39,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 10:43:39,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 10:43:39,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 10:43:39,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 10:43:39,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 10:43:39,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 10:43:39,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 10:43:39,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 10:43:39,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 10:43:39,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:43:39,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:43:39,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:43:39,270 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 10:43:39,293 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:43:39,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:43:39,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:43:39,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:43:39,294 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:43:39,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:43:39,295 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:43:39,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:43:39,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:43:39,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:43:39,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:43:39,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:43:39,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:43:39,296 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:43:39,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:43:39,296 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:43:39,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:43:39,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:43:39,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:43:39,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:43:39,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:43:39,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:43:39,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:43:39,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:43:39,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:43:39,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:43:39,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:43:39,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:43:39,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:43:39,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:43:39,563 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:43:39,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:43:39,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:43:39,581 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:43:39,581 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:43:39,582 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-07-07 10:43:39,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c71c97540/1d4d9a3209ae4ae5a8af86894dd534cb/FLAG68cccece5 [2020-07-07 10:43:40,188 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:43:40,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-07-07 10:43:40,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c71c97540/1d4d9a3209ae4ae5a8af86894dd534cb/FLAG68cccece5 [2020-07-07 10:43:40,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c71c97540/1d4d9a3209ae4ae5a8af86894dd534cb [2020-07-07 10:43:40,571 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:43:40,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:43:40,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:43:40,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:43:40,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:43:40,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:43:40" (1/1) ... [2020-07-07 10:43:40,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ec4255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:40, skipping insertion in model container [2020-07-07 10:43:40,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:43:40" (1/1) ... [2020-07-07 10:43:40,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:43:40,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:43:41,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:43:41,050 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:43:41,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:43:41,177 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:43:41,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:41 WrapperNode [2020-07-07 10:43:41,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:43:41,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:43:41,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:43:41,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:43:41,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:41" (1/1) ... [2020-07-07 10:43:41,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:41" (1/1) ... [2020-07-07 10:43:41,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:41" (1/1) ... [2020-07-07 10:43:41,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:41" (1/1) ... [2020-07-07 10:43:41,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:41" (1/1) ... [2020-07-07 10:43:41,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:41" (1/1) ... [2020-07-07 10:43:41,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:41" (1/1) ... [2020-07-07 10:43:41,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:43:41,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:43:41,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:43:41,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:43:41,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:43:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:43:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:43:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 10:43:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 10:43:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 10:43:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 10:43:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 10:43:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 10:43:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:43:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 10:43:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 10:43:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 10:43:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 10:43:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 10:43:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 10:43:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 10:43:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 10:43:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 10:43:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 10:43:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 10:43:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 10:43:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-07 10:43:41,346 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 10:43:41,346 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 10:43:41,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 10:43:41,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 10:43:41,346 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 10:43:41,346 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 10:43:41,347 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 10:43:41,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 10:43:41,347 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 10:43:41,347 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 10:43:41,347 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 10:43:41,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 10:43:41,348 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 10:43:41,348 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 10:43:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:43:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:43:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 10:43:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 10:43:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 10:43:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 10:43:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 10:43:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 10:43:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 10:43:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 10:43:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 10:43:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 10:43:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 10:43:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 10:43:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 10:43:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 10:43:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 10:43:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 10:43:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 10:43:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 10:43:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:43:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 10:43:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 10:43:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 10:43:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 10:43:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 10:43:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 10:43:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 10:43:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:43:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 10:43:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 10:43:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:43:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 10:43:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 10:43:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:43:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 10:43:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 10:43:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:43:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 10:43:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 10:43:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 10:43:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 10:43:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 10:43:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 10:43:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 10:43:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-07 10:43:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 10:43:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:43:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 10:43:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:43:42,417 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:43:42,417 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 10:43:42,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:43:42 BoogieIcfgContainer [2020-07-07 10:43:42,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:43:42,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:43:42,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:43:42,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:43:42,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:43:40" (1/3) ... [2020-07-07 10:43:42,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f461ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:43:42, skipping insertion in model container [2020-07-07 10:43:42,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:41" (2/3) ... [2020-07-07 10:43:42,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f461ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:43:42, skipping insertion in model container [2020-07-07 10:43:42,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:43:42" (3/3) ... [2020-07-07 10:43:42,434 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-07-07 10:43:42,444 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:43:42,452 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:43:42,466 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:43:42,490 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:43:42,491 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:43:42,491 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:43:42,491 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:43:42,492 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:43:42,492 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:43:42,492 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:43:42,492 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:43:42,514 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-07-07 10:43:42,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-07 10:43:42,524 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:43:42,525 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] [2020-07-07 10:43:42,526 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:43:42,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:43:42,531 INFO L82 PathProgramCache]: Analyzing trace with hash 789577792, now seen corresponding path program 1 times [2020-07-07 10:43:42,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:43:42,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626324431] [2020-07-07 10:43:42,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:43:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:43,169 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:43:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:43,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:43:43,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626324431] [2020-07-07 10:43:43,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:43:43,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 10:43:43,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696001585] [2020-07-07 10:43:43,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 10:43:43,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:43:43,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 10:43:43,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:43:43,285 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 3 states. [2020-07-07 10:43:44,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:43:44,223 INFO L93 Difference]: Finished difference Result 231 states and 307 transitions. [2020-07-07 10:43:44,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:43:44,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-07 10:43:44,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:43:44,242 INFO L225 Difference]: With dead ends: 231 [2020-07-07 10:43:44,242 INFO L226 Difference]: Without dead ends: 126 [2020-07-07 10:43:44,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:43:44,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-07 10:43:44,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 96. [2020-07-07 10:43:44,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-07 10:43:44,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-07-07 10:43:44,329 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 52 [2020-07-07 10:43:44,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:43:44,330 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-07-07 10:43:44,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 10:43:44,330 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-07-07 10:43:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-07 10:43:44,334 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:43:44,335 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] [2020-07-07 10:43:44,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:43:44,336 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:43:44,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:43:44,336 INFO L82 PathProgramCache]: Analyzing trace with hash 86425602, now seen corresponding path program 1 times [2020-07-07 10:43:44,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:43:44,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182069141] [2020-07-07 10:43:44,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:43:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:44,645 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:43:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:43:44,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182069141] [2020-07-07 10:43:44,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:43:44,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:43:44,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6425154] [2020-07-07 10:43:44,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:43:44,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:43:44,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:43:44,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:43:44,731 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 4 states. [2020-07-07 10:43:45,155 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:43:45,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:43:45,701 INFO L93 Difference]: Finished difference Result 155 states and 188 transitions. [2020-07-07 10:43:45,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:43:45,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-07 10:43:45,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:43:45,704 INFO L225 Difference]: With dead ends: 155 [2020-07-07 10:43:45,704 INFO L226 Difference]: Without dead ends: 110 [2020-07-07 10:43:45,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 10:43:45,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-07-07 10:43:45,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 87. [2020-07-07 10:43:45,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-07-07 10:43:45,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2020-07-07 10:43:45,737 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 53 [2020-07-07 10:43:45,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:43:45,738 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2020-07-07 10:43:45,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:43:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2020-07-07 10:43:45,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-07 10:43:45,740 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:43:45,740 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] [2020-07-07 10:43:45,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:43:45,741 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:43:45,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:43:45,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1920799428, now seen corresponding path program 1 times [2020-07-07 10:43:45,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:43:45,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350294919] [2020-07-07 10:43:45,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:43:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:46,097 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:43:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:46,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:43:46,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350294919] [2020-07-07 10:43:46,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:43:46,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:43:46,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940466316] [2020-07-07 10:43:46,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:43:46,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:43:46,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:43:46,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:43:46,174 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand 8 states. [2020-07-07 10:43:46,581 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:43:46,876 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:43:47,114 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:43:47,372 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:43:48,012 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:43:49,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:43:49,044 INFO L93 Difference]: Finished difference Result 311 states and 384 transitions. [2020-07-07 10:43:49,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:43:49,045 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-07-07 10:43:49,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:43:49,050 INFO L225 Difference]: With dead ends: 311 [2020-07-07 10:43:49,050 INFO L226 Difference]: Without dead ends: 248 [2020-07-07 10:43:49,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-07 10:43:49,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-07-07 10:43:49,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 186. [2020-07-07 10:43:49,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-07-07 10:43:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 221 transitions. [2020-07-07 10:43:49,123 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 221 transitions. Word has length 57 [2020-07-07 10:43:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:43:49,123 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 221 transitions. [2020-07-07 10:43:49,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:43:49,124 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 221 transitions. [2020-07-07 10:43:49,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-07 10:43:49,129 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:43:49,129 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] [2020-07-07 10:43:49,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:43:49,135 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:43:49,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:43:49,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1032165772, now seen corresponding path program 1 times [2020-07-07 10:43:49,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:43:49,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435533597] [2020-07-07 10:43:49,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:43:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:49,500 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:43:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:49,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:43:49,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435533597] [2020-07-07 10:43:49,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:43:49,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 10:43:49,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43811238] [2020-07-07 10:43:49,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 10:43:49,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:43:49,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 10:43:49,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-07 10:43:49,587 INFO L87 Difference]: Start difference. First operand 186 states and 221 transitions. Second operand 7 states. [2020-07-07 10:43:49,948 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:43:50,891 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:43:51,151 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:43:51,382 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:43:51,642 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:43:51,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:43:51,875 INFO L93 Difference]: Finished difference Result 524 states and 668 transitions. [2020-07-07 10:43:51,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 10:43:51,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-07-07 10:43:51,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:43:51,883 INFO L225 Difference]: With dead ends: 524 [2020-07-07 10:43:51,883 INFO L226 Difference]: Without dead ends: 362 [2020-07-07 10:43:51,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:43:51,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-07-07 10:43:51,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 341. [2020-07-07 10:43:51,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-07-07 10:43:51,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 417 transitions. [2020-07-07 10:43:51,965 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 417 transitions. Word has length 60 [2020-07-07 10:43:51,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:43:51,966 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 417 transitions. [2020-07-07 10:43:51,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 10:43:51,966 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 417 transitions. [2020-07-07 10:43:51,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-07 10:43:51,969 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:43:51,970 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] [2020-07-07 10:43:51,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:43:51,970 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:43:51,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:43:51,970 INFO L82 PathProgramCache]: Analyzing trace with hash 2086246822, now seen corresponding path program 1 times [2020-07-07 10:43:51,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:43:51,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973707734] [2020-07-07 10:43:51,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:43:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:52,221 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:43:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:43:52,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973707734] [2020-07-07 10:43:52,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:43:52,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 10:43:52,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133209679] [2020-07-07 10:43:52,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 10:43:52,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:43:52,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 10:43:52,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 10:43:52,327 INFO L87 Difference]: Start difference. First operand 341 states and 417 transitions. Second operand 5 states. [2020-07-07 10:43:52,641 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:43:53,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:43:53,133 INFO L93 Difference]: Finished difference Result 586 states and 736 transitions. [2020-07-07 10:43:53,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 10:43:53,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-07-07 10:43:53,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:43:53,138 INFO L225 Difference]: With dead ends: 586 [2020-07-07 10:43:53,138 INFO L226 Difference]: Without dead ends: 308 [2020-07-07 10:43:53,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 10:43:53,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-07-07 10:43:53,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 295. [2020-07-07 10:43:53,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-07-07 10:43:53,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 346 transitions. [2020-07-07 10:43:53,194 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 346 transitions. Word has length 64 [2020-07-07 10:43:53,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:43:53,195 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 346 transitions. [2020-07-07 10:43:53,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 10:43:53,195 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 346 transitions. [2020-07-07 10:43:53,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-07 10:43:53,197 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:43:53,197 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] [2020-07-07 10:43:53,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 10:43:53,197 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:43:53,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:43:53,197 INFO L82 PathProgramCache]: Analyzing trace with hash -68424058, now seen corresponding path program 1 times [2020-07-07 10:43:53,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:43:53,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826477792] [2020-07-07 10:43:53,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:43:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:43:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:43:53,354 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:43:53,354 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:43:53,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 10:43:53,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:43:53 BoogieIcfgContainer [2020-07-07 10:43:53,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:43:53,535 INFO L168 Benchmark]: Toolchain (without parser) took 12962.46 ms. Allocated memory was 139.5 MB in the beginning and 443.0 MB in the end (delta: 303.6 MB). Free memory was 103.4 MB in the beginning and 177.4 MB in the end (delta: -74.0 MB). Peak memory consumption was 229.6 MB. Max. memory is 7.1 GB. [2020-07-07 10:43:53,535 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 10:43:53,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 604.84 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 103.2 MB in the beginning and 173.9 MB in the end (delta: -70.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2020-07-07 10:43:53,537 INFO L168 Benchmark]: Boogie Preprocessor took 87.12 ms. Allocated memory is still 204.5 MB. Free memory was 173.9 MB in the beginning and 169.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:43:53,538 INFO L168 Benchmark]: RCFGBuilder took 1159.83 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 169.8 MB in the beginning and 197.2 MB in the end (delta: -27.3 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-07-07 10:43:53,539 INFO L168 Benchmark]: TraceAbstraction took 11106.07 ms. Allocated memory was 234.4 MB in the beginning and 443.0 MB in the end (delta: 208.7 MB). Free memory was 197.2 MB in the beginning and 177.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 228.4 MB. Max. memory is 7.1 GB. [2020-07-07 10:43:53,543 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 604.84 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 103.2 MB in the beginning and 173.9 MB in the end (delta: -70.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.12 ms. Allocated memory is still 204.5 MB. Free memory was 173.9 MB in the beginning and 169.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1159.83 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 169.8 MB in the beginning and 197.2 MB in the end (delta: -27.3 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11106.07 ms. Allocated memory was 234.4 MB in the beginning and 443.0 MB in the end (delta: 208.7 MB). Free memory was 197.2 MB in the beginning and 177.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 228.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L78] int cleanupTimeShifts = 4; [L386] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L804] int waterLevel = 1; [L805] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] int retValue_acc ; [L160] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L164] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L166] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L166] tmp = valid_product() [L168] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L170] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L171] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L150] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L729] int splverifierCounter ; [L730] int tmp ; [L731] int tmp___0 ; [L732] int tmp___1 ; [L733] int tmp___2 ; [L736] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L738] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L740] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L746] tmp = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L750] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L822] COND TRUE waterLevel < 2 [L823] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L750] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L756] tmp___0 = __VERIFIER_nondet_int() [L758] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L766] tmp___2 = __VERIFIER_nondet_int() [L768] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L783] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L604] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L610] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L843] int retValue_acc ; [L846] retValue_acc = methaneLevelCritical [L847] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L51] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L57] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L875] int retValue_acc ; [L878] retValue_acc = waterLevel [L879] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L57] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L61] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L668] int retValue_acc ; [L671] retValue_acc = pumpRunning [L672] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L61] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L67] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 210 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 415 SDtfs, 629 SDslu, 307 SDs, 0 SdLazy, 1278 SolverSat, 361 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred 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, 5 MinimizatonAttempts, 149 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 281 ConstructedInterpolants, 0 QuantifiedInterpolants, 78428 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...