/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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:32:30,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:32:30,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:32:30,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:32:30,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:32:30,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:32:30,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:32:30,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:32:30,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:32:30,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:32:30,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:32:30,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:32:30,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:32:30,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:32:30,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:32:30,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:32:30,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:32:30,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:32:30,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:32:30,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:32:30,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:32:30,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:32:30,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:32:30,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:32:30,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:32:30,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:32:30,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:32:30,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:32:30,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:32:30,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:32:30,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:32:30,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:32:30,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:32:30,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:32:30,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:32:30,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:32:30,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:32:30,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:32:30,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:32:30,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:32:30,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:32:30,456 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:32:30,465 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:32:30,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:32:30,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:32:30,467 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:32:30,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:32:30,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:32:30,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:32:30,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:32:30,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:32:30,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:32:30,468 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:32:30,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:32:30,469 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:32:30,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:32:30,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:32:30,469 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:32:30,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:32:30,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:32:30,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:32:30,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:32:30,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:32:30,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:32:30,471 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:32:30,733 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:32:30,746 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:32:30,749 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:32:30,751 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:32:30,751 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:32:30,752 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-07-07 12:32:30,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10f59965d/67876d9560ef4770bf457878732cce4f/FLAGe90656f81 [2020-07-07 12:32:31,391 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:32:31,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-07-07 12:32:31,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10f59965d/67876d9560ef4770bf457878732cce4f/FLAGe90656f81 [2020-07-07 12:32:31,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10f59965d/67876d9560ef4770bf457878732cce4f [2020-07-07 12:32:31,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:32:31,682 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:32:31,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:32:31,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:32:31,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:32:31,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:32:31" (1/1) ... [2020-07-07 12:32:31,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d40e82d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:31, skipping insertion in model container [2020-07-07 12:32:31,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:32:31" (1/1) ... [2020-07-07 12:32:31,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:32:31,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:32:32,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:32:32,143 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:32:32,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:32:32,289 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:32:32,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32 WrapperNode [2020-07-07 12:32:32,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:32:32,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:32:32,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:32:32,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:32:32,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:32:32,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:32:32,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:32:32,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:32:32,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:32:32,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:32:32,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:32:32,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:32:32,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:32:32,438 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:32:32,438 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:32:32,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:32:32,439 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:32:32,439 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:32:32,439 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:32:32,439 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:32:32,439 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:32:32,439 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:32:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:32:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:32:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:32:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:32:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:32:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:32:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:32:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:32:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-07 12:32:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:32:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:32:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:32:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:32:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:32:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:32:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:32:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:32:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:32:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:32:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:32:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:32:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:32:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:32:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:32:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:32:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:32:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:32:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:32:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:32:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:32:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:32:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:32:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:32:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:32:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:32:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:32:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:32:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:32:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:32:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:32:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:32:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:32:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:32:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:32:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:32:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:32:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:32:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:32:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:32:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:32:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:32:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:32:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:32:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:32:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:32:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:32:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:32:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:32:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:32:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:32:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:32:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:32:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:32:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:32:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:32:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:32:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:32:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:32:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-07 12:32:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:32:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:32:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:32:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:32:33,550 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:32:33,550 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:32:33,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:32:33 BoogieIcfgContainer [2020-07-07 12:32:33,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:32:33,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:32:33,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:32:33,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:32:33,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:32:31" (1/3) ... [2020-07-07 12:32:33,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b17cb05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:32:33, skipping insertion in model container [2020-07-07 12:32:33,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (2/3) ... [2020-07-07 12:32:33,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b17cb05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:32:33, skipping insertion in model container [2020-07-07 12:32:33,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:32:33" (3/3) ... [2020-07-07 12:32:33,565 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-07-07 12:32:33,576 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:32:33,585 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:32:33,599 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:32:33,622 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:32:33,622 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:32:33,622 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:32:33,622 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:32:33,623 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:32:33,623 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:32:33,623 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:32:33,623 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:32:33,644 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2020-07-07 12:32:33,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:32:33,665 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:33,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:32:33,667 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:33,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:33,673 INFO L82 PathProgramCache]: Analyzing trace with hash 348388081, now seen corresponding path program 1 times [2020-07-07 12:32:33,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:33,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893415943] [2020-07-07 12:32:33,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,450 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:32:34,614 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:34,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893415943] [2020-07-07 12:32:34,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:34,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:32:34,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664690394] [2020-07-07 12:32:34,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:32:34,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:34,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:32:34,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:32:34,644 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 3 states. [2020-07-07 12:32:35,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:35,825 INFO L93 Difference]: Finished difference Result 385 states and 461 transitions. [2020-07-07 12:32:35,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:32:35,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:32:35,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:35,845 INFO L225 Difference]: With dead ends: 385 [2020-07-07 12:32:35,845 INFO L226 Difference]: Without dead ends: 249 [2020-07-07 12:32:35,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:32:35,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-07-07 12:32:35,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 210. [2020-07-07 12:32:35,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-07-07 12:32:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 225 transitions. [2020-07-07 12:32:35,985 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 225 transitions. Word has length 153 [2020-07-07 12:32:35,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:35,986 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 225 transitions. [2020-07-07 12:32:35,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:32:35,986 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 225 transitions. [2020-07-07 12:32:35,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:32:35,991 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:35,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:32:35,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:32:35,992 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:35,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:35,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1859532277, now seen corresponding path program 1 times [2020-07-07 12:32:35,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:35,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126910536] [2020-07-07 12:32:35,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,373 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:32:36,485 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:36,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126910536] [2020-07-07 12:32:36,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:36,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:32:36,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697790778] [2020-07-07 12:32:36,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:32:36,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:36,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:32:36,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:32:36,491 INFO L87 Difference]: Start difference. First operand 210 states and 225 transitions. Second operand 4 states. [2020-07-07 12:32:37,179 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:32:37,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:37,769 INFO L93 Difference]: Finished difference Result 293 states and 326 transitions. [2020-07-07 12:32:37,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:32:37,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:32:37,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:37,781 INFO L225 Difference]: With dead ends: 293 [2020-07-07 12:32:37,782 INFO L226 Difference]: Without dead ends: 232 [2020-07-07 12:32:37,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:32:37,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-07-07 12:32:37,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 200. [2020-07-07 12:32:37,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-07-07 12:32:37,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 212 transitions. [2020-07-07 12:32:37,856 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 212 transitions. Word has length 154 [2020-07-07 12:32:37,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:37,856 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 212 transitions. [2020-07-07 12:32:37,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:32:37,857 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 212 transitions. [2020-07-07 12:32:37,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:32:37,859 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:37,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:32:37,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:32:37,860 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:37,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:37,861 INFO L82 PathProgramCache]: Analyzing trace with hash 97616053, now seen corresponding path program 1 times [2020-07-07 12:32:37,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:37,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433884603] [2020-07-07 12:32:37,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:38,204 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:38,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:32:38,384 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:38,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433884603] [2020-07-07 12:32:38,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:38,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:32:38,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415409364] [2020-07-07 12:32:38,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:32:38,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:38,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:32:38,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:32:38,387 INFO L87 Difference]: Start difference. First operand 200 states and 212 transitions. Second operand 9 states. [2020-07-07 12:32:38,953 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:39,271 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:32:39,528 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:32:39,790 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:40,052 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:40,290 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:41,212 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:32:42,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:42,546 INFO L93 Difference]: Finished difference Result 514 states and 587 transitions. [2020-07-07 12:32:42,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:32:42,547 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:32:42,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:42,552 INFO L225 Difference]: With dead ends: 514 [2020-07-07 12:32:42,553 INFO L226 Difference]: Without dead ends: 424 [2020-07-07 12:32:42,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:32:42,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-07-07 12:32:42,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 353. [2020-07-07 12:32:42,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-07-07 12:32:42,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 388 transitions. [2020-07-07 12:32:42,680 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 388 transitions. Word has length 163 [2020-07-07 12:32:42,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:42,681 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 388 transitions. [2020-07-07 12:32:42,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:32:42,681 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 388 transitions. [2020-07-07 12:32:42,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-07 12:32:42,684 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:42,684 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] [2020-07-07 12:32:42,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:32:42,685 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:42,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:42,685 INFO L82 PathProgramCache]: Analyzing trace with hash -2677620, now seen corresponding path program 1 times [2020-07-07 12:32:42,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:42,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253621732] [2020-07-07 12:32:42,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:43,000 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:43,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:32:43,132 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:43,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253621732] [2020-07-07 12:32:43,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:43,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 12:32:43,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392007375] [2020-07-07 12:32:43,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 12:32:43,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:43,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 12:32:43,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-07 12:32:43,135 INFO L87 Difference]: Start difference. First operand 353 states and 388 transitions. Second operand 8 states. [2020-07-07 12:32:43,653 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:44,952 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:45,186 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:45,432 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:45,708 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:45,937 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:46,192 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:46,467 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:46,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:46,833 INFO L93 Difference]: Finished difference Result 850 states and 994 transitions. [2020-07-07 12:32:46,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:32:46,833 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-07-07 12:32:46,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:46,840 INFO L225 Difference]: With dead ends: 850 [2020-07-07 12:32:46,840 INFO L226 Difference]: Without dead ends: 607 [2020-07-07 12:32:46,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:32:46,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-07-07 12:32:47,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 571. [2020-07-07 12:32:47,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-07-07 12:32:47,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 647 transitions. [2020-07-07 12:32:47,079 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 647 transitions. Word has length 166 [2020-07-07 12:32:47,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:47,080 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 647 transitions. [2020-07-07 12:32:47,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 12:32:47,080 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 647 transitions. [2020-07-07 12:32:47,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-07 12:32:47,084 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:47,084 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] [2020-07-07 12:32:47,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:32:47,084 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:47,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:47,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1190106924, now seen corresponding path program 1 times [2020-07-07 12:32:47,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:47,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216080692] [2020-07-07 12:32:47,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:47,365 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:47,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:32:47,513 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:47,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216080692] [2020-07-07 12:32:47,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:47,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 12:32:47,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436659050] [2020-07-07 12:32:47,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 12:32:47,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:47,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 12:32:47,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:32:47,515 INFO L87 Difference]: Start difference. First operand 571 states and 647 transitions. Second operand 5 states. [2020-07-07 12:32:47,941 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:48,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:48,675 INFO L93 Difference]: Finished difference Result 945 states and 1095 transitions. [2020-07-07 12:32:48,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 12:32:48,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2020-07-07 12:32:48,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:48,682 INFO L225 Difference]: With dead ends: 945 [2020-07-07 12:32:48,682 INFO L226 Difference]: Without dead ends: 544 [2020-07-07 12:32:48,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 12:32:48,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2020-07-07 12:32:48,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 522. [2020-07-07 12:32:48,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2020-07-07 12:32:48,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 573 transitions. [2020-07-07 12:32:48,887 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 573 transitions. Word has length 171 [2020-07-07 12:32:48,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:48,887 INFO L479 AbstractCegarLoop]: Abstraction has 522 states and 573 transitions. [2020-07-07 12:32:48,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 12:32:48,888 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 573 transitions. [2020-07-07 12:32:48,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-07 12:32:48,890 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:48,891 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] [2020-07-07 12:32:48,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:32:48,891 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:48,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:48,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1656398860, now seen corresponding path program 1 times [2020-07-07 12:32:48,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:48,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1228694451] [2020-07-07 12:32:48,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:32:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:32:49,187 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:49,187 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:32:49,187 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:32:49,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:32:49,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:32:49 BoogieIcfgContainer [2020-07-07 12:32:49,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:32:49,229 INFO L168 Benchmark]: Toolchain (without parser) took 17545.90 ms. Allocated memory was 141.0 MB in the beginning and 542.6 MB in the end (delta: 401.6 MB). Free memory was 100.5 MB in the beginning and 386.6 MB in the end (delta: -286.2 MB). Peak memory consumption was 115.4 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:49,235 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 141.0 MB. Free memory was 120.2 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:32:49,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.87 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 100.3 MB in the beginning and 172.7 MB in the end (delta: -72.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:49,237 INFO L168 Benchmark]: Boogie Preprocessor took 85.81 ms. Allocated memory is still 201.9 MB. Free memory was 172.7 MB in the beginning and 168.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:49,238 INFO L168 Benchmark]: RCFGBuilder took 1180.92 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 168.1 MB in the beginning and 181.3 MB in the end (delta: -13.1 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:49,239 INFO L168 Benchmark]: TraceAbstraction took 15668.05 ms. Allocated memory was 232.3 MB in the beginning and 542.6 MB in the end (delta: 310.4 MB). Free memory was 181.3 MB in the beginning and 386.6 MB in the end (delta: -205.4 MB). Peak memory consumption was 105.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:49,251 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 141.0 MB. Free memory was 120.2 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 605.87 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 100.3 MB in the beginning and 172.7 MB in the end (delta: -72.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.81 ms. Allocated memory is still 201.9 MB. Free memory was 172.7 MB in the beginning and 168.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1180.92 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 168.1 MB in the beginning and 181.3 MB in the end (delta: -13.1 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15668.05 ms. Allocated memory was 232.3 MB in the beginning and 542.6 MB in the end (delta: 310.4 MB). Free memory was 181.3 MB in the beginning and 386.6 MB in the end (delta: -205.4 MB). Peak memory consumption was 105.0 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; [L159] int retValue_acc ; [L160] int tmp ; [L164] FCALL select_helpers() [L165] FCALL select_features() [L166] CALL, EXPR valid_product() [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] return (retValue_acc); [L166] RET, EXPR valid_product() [L166] tmp = valid_product() [L168] COND TRUE \read(tmp) [L170] FCALL setup() [L171] CALL runTest() [L150] CALL test() [L729] int splverifierCounter ; [L730] int tmp ; [L731] int tmp___0 ; [L732] int tmp___1 ; [L733] int tmp___2 ; [L736] splverifierCounter = 0 [L738] COND TRUE 1 [L740] COND TRUE splverifierCounter < 4 [L746] tmp = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp) [L750] CALL waterRise() [L822] COND TRUE waterLevel < 2 [L823] waterLevel = waterLevel + 1 [L750] RET waterRise() [L756] tmp___0 = __VERIFIER_nondet_int() [L758] COND FALSE !(\read(tmp___0)) [L766] tmp___2 = __VERIFIER_nondet_int() [L768] COND TRUE \read(tmp___2) [L783] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND TRUE \read(systemActive) [L604] FCALL processEnvironment() [L610] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L843] int retValue_acc ; [L846] retValue_acc = methaneLevelCritical [L847] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L875] int retValue_acc ; [L878] retValue_acc = waterLevel [L879] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L668] int retValue_acc ; [L671] retValue_acc = pumpRunning [L672] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L799] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 593 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 957 SDtfs, 1119 SDslu, 1286 SDs, 0 SdLazy, 2280 SolverSat, 347 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=571occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 200 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...