/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:55:03,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:55:03,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:55:03,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:55:03,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:55:03,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:55:03,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:55:03,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:55:03,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:55:03,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:55:03,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:55:03,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:55:03,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:55:03,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:55:03,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:55:03,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:55:03,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:55:03,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:55:03,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:55:03,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:55:03,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:55:03,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:55:03,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:55:03,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:55:03,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:55:03,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:55:03,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:55:03,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:55:03,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:55:03,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:55:03,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:55:03,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:55:03,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:55:03,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:55:03,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:55:03,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:55:03,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:55:03,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:55:03,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:55:03,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:55:03,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:55:03,456 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:55:03,468 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:55:03,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:55:03,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:55:03,470 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:55:03,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:55:03,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:55:03,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:55:03,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:55:03,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:55:03,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:55:03,472 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:55:03,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:55:03,472 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:55:03,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:55:03,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:55:03,473 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:55:03,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:55:03,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:55:03,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:55:03,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:55:03,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:55:03,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:55:03,474 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:55:03,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:55:03,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:55:03,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:55:03,902 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:55:03,903 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:55:03,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-10-23 19:55:03,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1e8beda9/e80c8d2ac0b146f0a791c4e434e55337/FLAGd93610a79 [2020-10-23 19:55:04,689 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:55:04,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-10-23 19:55:04,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1e8beda9/e80c8d2ac0b146f0a791c4e434e55337/FLAGd93610a79 [2020-10-23 19:55:04,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1e8beda9/e80c8d2ac0b146f0a791c4e434e55337 [2020-10-23 19:55:04,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:55:04,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:55:04,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:55:04,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:55:04,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:55:04,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:55:04" (1/1) ... [2020-10-23 19:55:04,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c58354c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:04, skipping insertion in model container [2020-10-23 19:55:04,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:55:04" (1/1) ... [2020-10-23 19:55:04,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:55:05,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:55:05,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:55:05,341 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:55:05,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:55:05,460 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:55:05,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:05 WrapperNode [2020-10-23 19:55:05,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:55:05,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:55:05,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:55:05,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:55:05,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:05" (1/1) ... [2020-10-23 19:55:05,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:05" (1/1) ... [2020-10-23 19:55:05,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:05" (1/1) ... [2020-10-23 19:55:05,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:05" (1/1) ... [2020-10-23 19:55:05,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:05" (1/1) ... [2020-10-23 19:55:05,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:05" (1/1) ... [2020-10-23 19:55:05,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:05" (1/1) ... [2020-10-23 19:55:05,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:55:05,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:55:05,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:55:05,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:55:05,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:05" (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 [2020-10-23 19:55:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:55:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:55:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:55:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:55:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:55:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:55:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:55:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:55:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:55:05,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:55:05,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:55:05,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:55:05,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:55:05,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:55:05,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:55:05,657 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:55:05,657 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:55:05,657 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:55:05,657 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:55:05,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:55:05,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:55:05,658 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:55:05,658 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:55:05,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:55:05,658 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:55:05,659 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:55:05,659 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:55:05,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:55:05,659 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:55:05,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:55:05,660 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:55:05,660 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:55:05,660 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:55:05,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:55:05,660 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:55:05,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:55:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:55:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:55:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:55:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:55:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:55:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:55:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:55:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:55:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:55:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:55:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:55:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:55:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:55:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:55:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:55:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:55:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:55:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:55:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:55:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:55:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:55:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:55:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:55:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:55:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:55:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:55:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:55:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:55:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:55:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:55:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:55:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:55:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:55:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:55:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:55:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:55:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:55:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:55:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:55:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:55:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:55:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:55:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:55:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:55:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:55:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:55:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:55:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:55:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:55:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:55:06,957 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:55:06,958 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:55:06,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:55:06 BoogieIcfgContainer [2020-10-23 19:55:06,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:55:06,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:55:06,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:55:06,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:55:06,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:55:04" (1/3) ... [2020-10-23 19:55:06,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261bb23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:55:06, skipping insertion in model container [2020-10-23 19:55:06,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:05" (2/3) ... [2020-10-23 19:55:06,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261bb23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:55:06, skipping insertion in model container [2020-10-23 19:55:06,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:55:06" (3/3) ... [2020-10-23 19:55:06,969 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2020-10-23 19:55:06,980 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:55:06,986 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:55:06,998 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:55:07,020 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:55:07,020 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:55:07,020 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:55:07,020 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:55:07,020 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:55:07,021 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:55:07,021 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:55:07,021 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:55:07,042 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states. [2020-10-23 19:55:07,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:55:07,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:07,062 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] [2020-10-23 19:55:07,062 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:55:07,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:07,069 INFO L82 PathProgramCache]: Analyzing trace with hash -274691021, now seen corresponding path program 1 times [2020-10-23 19:55:07,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:07,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186485051] [2020-10-23 19:55:07,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:07,151 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:07,834 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:07,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:07,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:07,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:07,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:07,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:07,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:55:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:07,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:55:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:07,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:55:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:08,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:55:08,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186485051] [2020-10-23 19:55:08,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:08,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:55:08,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392089672] [2020-10-23 19:55:08,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:55:08,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:08,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:55:08,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:55:08,082 INFO L87 Difference]: Start difference. First operand 271 states. Second operand 3 states. [2020-10-23 19:55:09,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:09,472 INFO L93 Difference]: Finished difference Result 384 states and 459 transitions. [2020-10-23 19:55:09,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:55:09,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:55:09,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:09,490 INFO L225 Difference]: With dead ends: 384 [2020-10-23 19:55:09,491 INFO L226 Difference]: Without dead ends: 249 [2020-10-23 19:55:09,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:55:09,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-23 19:55:09,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 211. [2020-10-23 19:55:09,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-23 19:55:09,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 225 transitions. [2020-10-23 19:55:09,652 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 225 transitions. Word has length 159 [2020-10-23 19:55:09,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:09,656 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 225 transitions. [2020-10-23 19:55:09,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:55:09,656 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 225 transitions. [2020-10-23 19:55:09,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:55:09,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:09,668 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] [2020-10-23 19:55:09,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:55:09,669 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:55:09,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:09,670 INFO L82 PathProgramCache]: Analyzing trace with hash 481147691, now seen corresponding path program 1 times [2020-10-23 19:55:09,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:09,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901484446] [2020-10-23 19:55:09,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:09,676 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:10,236 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:10,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:10,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:10,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:10,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:10,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:10,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:55:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:10,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:55:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:10,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:55:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:10,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:55:10,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901484446] [2020-10-23 19:55:10,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:10,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:55:10,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651227365] [2020-10-23 19:55:10,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:55:10,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:10,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:55:10,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:55:10,456 INFO L87 Difference]: Start difference. First operand 211 states and 225 transitions. Second operand 4 states. [2020-10-23 19:55:11,295 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:55:12,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:12,004 INFO L93 Difference]: Finished difference Result 294 states and 326 transitions. [2020-10-23 19:55:12,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:55:12,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:55:12,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:12,010 INFO L225 Difference]: With dead ends: 294 [2020-10-23 19:55:12,010 INFO L226 Difference]: Without dead ends: 232 [2020-10-23 19:55:12,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:55:12,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-23 19:55:12,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 201. [2020-10-23 19:55:12,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-23 19:55:12,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 212 transitions. [2020-10-23 19:55:12,106 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 212 transitions. Word has length 160 [2020-10-23 19:55:12,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:12,108 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 212 transitions. [2020-10-23 19:55:12,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:55:12,109 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 212 transitions. [2020-10-23 19:55:12,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:55:12,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:12,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:12,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:55:12,112 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:55:12,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:12,113 INFO L82 PathProgramCache]: Analyzing trace with hash 218643249, now seen corresponding path program 1 times [2020-10-23 19:55:12,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:12,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551579847] [2020-10-23 19:55:12,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:12,117 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:12,649 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:12,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:12,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:12,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:12,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:12,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:12,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:55:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:12,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:55:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:12,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:55:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:12,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:55:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:12,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:55:12,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551579847] [2020-10-23 19:55:12,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:12,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:55:12,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038695367] [2020-10-23 19:55:12,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:55:12,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:12,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:55:12,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:55:12,837 INFO L87 Difference]: Start difference. First operand 201 states and 212 transitions. Second operand 10 states. [2020-10-23 19:55:13,605 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:55:14,074 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:55:14,462 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:55:14,878 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:15,263 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:55:15,638 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:17,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:17,028 INFO L93 Difference]: Finished difference Result 340 states and 388 transitions. [2020-10-23 19:55:17,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:55:17,029 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:55:17,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:17,033 INFO L225 Difference]: With dead ends: 340 [2020-10-23 19:55:17,033 INFO L226 Difference]: Without dead ends: 254 [2020-10-23 19:55:17,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 19:55:17,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-23 19:55:17,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 201. [2020-10-23 19:55:17,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-23 19:55:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 211 transitions. [2020-10-23 19:55:17,111 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 211 transitions. Word has length 173 [2020-10-23 19:55:17,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:17,112 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 211 transitions. [2020-10-23 19:55:17,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:55:17,112 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 211 transitions. [2020-10-23 19:55:17,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 19:55:17,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:17,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:17,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:55:17,115 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:55:17,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:17,116 INFO L82 PathProgramCache]: Analyzing trace with hash -945491948, now seen corresponding path program 1 times [2020-10-23 19:55:17,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:17,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193708228] [2020-10-23 19:55:17,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:17,119 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:17,538 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:17,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:17,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:17,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:17,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:17,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:17,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:55:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:17,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:55:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:17,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 19:55:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:17,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 19:55:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:17,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-23 19:55:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:17,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:55:17,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193708228] [2020-10-23 19:55:17,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:17,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:55:17,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087132681] [2020-10-23 19:55:17,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:55:17,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:17,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:55:17,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:55:17,822 INFO L87 Difference]: Start difference. First operand 201 states and 211 transitions. Second operand 9 states. [2020-10-23 19:55:18,436 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:55:20,079 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:20,493 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:55:20,909 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:21,327 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:55:21,707 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:55:22,116 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:22,492 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:23,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:23,046 INFO L93 Difference]: Finished difference Result 432 states and 503 transitions. [2020-10-23 19:55:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:55:23,047 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-10-23 19:55:23,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:23,052 INFO L225 Difference]: With dead ends: 432 [2020-10-23 19:55:23,052 INFO L226 Difference]: Without dead ends: 346 [2020-10-23 19:55:23,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:55:23,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-23 19:55:23,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 276. [2020-10-23 19:55:23,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-23 19:55:23,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 298 transitions. [2020-10-23 19:55:23,181 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 298 transitions. Word has length 176 [2020-10-23 19:55:23,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:23,182 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 298 transitions. [2020-10-23 19:55:23,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:55:23,182 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 298 transitions. [2020-10-23 19:55:23,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-23 19:55:23,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:23,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:23,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:55:23,185 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:55:23,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:23,186 INFO L82 PathProgramCache]: Analyzing trace with hash -650069955, now seen corresponding path program 1 times [2020-10-23 19:55:23,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:23,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585384101] [2020-10-23 19:55:23,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:23,190 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:55:23,269 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:55:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:55:23,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:55:23,546 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:55:23,546 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:55:23,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:55:23,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:55:23 BoogieIcfgContainer [2020-10-23 19:55:23,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:55:23,583 INFO L168 Benchmark]: Toolchain (without parser) took 18644.89 ms. Allocated memory was 151.0 MB in the beginning and 388.0 MB in the end (delta: 237.0 MB). Free memory was 126.3 MB in the beginning and 325.8 MB in the end (delta: -199.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:23,584 INFO L168 Benchmark]: CDTParser took 0.95 ms. Allocated memory is still 151.0 MB. Free memory is still 126.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:55:23,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.42 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 106.0 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:23,592 INFO L168 Benchmark]: Boogie Preprocessor took 112.56 ms. Allocated memory is still 151.0 MB. Free memory was 106.0 MB in the beginning and 102.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:23,594 INFO L168 Benchmark]: RCFGBuilder took 1385.22 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 102.2 MB in the beginning and 121.5 MB in the end (delta: -19.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:23,595 INFO L168 Benchmark]: TraceAbstraction took 16618.34 ms. Allocated memory was 181.4 MB in the beginning and 388.0 MB in the end (delta: 206.6 MB). Free memory was 120.9 MB in the beginning and 325.8 MB in the end (delta: -204.8 MB). Peak memory consumption was 1.7 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:23,605 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95 ms. Allocated memory is still 151.0 MB. Free memory is still 126.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 515.42 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 106.0 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 112.56 ms. Allocated memory is still 151.0 MB. Free memory was 106.0 MB in the beginning and 102.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1385.22 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 102.2 MB in the beginning and 121.5 MB in the end (delta: -19.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16618.34 ms. Allocated memory was 181.4 MB in the beginning and 388.0 MB in the end (delta: 206.6 MB). Free memory was 120.9 MB in the beginning and 325.8 MB in the end (delta: -204.8 MB). Peak memory consumption was 1.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L258] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L464] int pumpRunning = 0; [L465] int systemActive = 1; [L685] int cleanupTimeShifts = 4; [L781] int waterLevel = 1; [L782] int methaneLevelCritical = 0; [L758] int retValue_acc ; [L759] int tmp ; [L763] FCALL select_helpers() [L764] FCALL select_features() [L765] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L765] RET, EXPR valid_product() [L765] tmp = valid_product() [L767] COND TRUE \read(tmp) [L769] FCALL setup() [L770] CALL runTest() [L752] CALL test() [L619] int splverifierCounter ; [L620] int tmp ; [L621] int tmp___0 ; [L622] int tmp___1 ; [L623] int tmp___2 ; [L626] splverifierCounter = 0 [L628] COND TRUE 1 [L630] COND TRUE splverifierCounter < 4 [L636] tmp = __VERIFIER_nondet_int() [L638] COND TRUE \read(tmp) [L640] CALL waterRise() [L799] COND TRUE waterLevel < 2 [L800] waterLevel = waterLevel + 1 [L640] RET waterRise() [L646] tmp___0 = __VERIFIER_nondet_int() [L648] COND FALSE !(\read(tmp___0)) [L656] tmp___2 = __VERIFIER_nondet_int() [L658] COND TRUE \read(tmp___2) [L660] CALL startSystem() [L575] systemActive = 1 [L660] RET startSystem() [L673] CALL timeShift() [L472] COND FALSE !(\read(pumpRunning)) [L479] COND TRUE \read(systemActive) [L481] FCALL processEnvironment() [L487] CALL __utac_acc__Specification3_spec__1() [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L588] CALL, EXPR isMethaneLevelCritical() [L820] int retValue_acc ; [L823] retValue_acc = methaneLevelCritical [L824] return (retValue_acc); [L588] RET, EXPR isMethaneLevelCritical() [L588] tmp = isMethaneLevelCritical() [L590] COND FALSE !(\read(tmp)) [L594] CALL, EXPR getWaterLevel() [L852] int retValue_acc ; [L855] retValue_acc = waterLevel [L856] return (retValue_acc); [L594] RET, EXPR getWaterLevel() [L594] tmp___0 = getWaterLevel() [L596] COND TRUE tmp___0 == 2 [L598] CALL, EXPR isPumpRunning() [L527] int retValue_acc ; [L530] retValue_acc = pumpRunning [L531] return (retValue_acc); [L598] RET, EXPR isPumpRunning() [L598] tmp___1 = isPumpRunning() [L600] COND FALSE !(\read(tmp___1)) [L604] CALL __automaton_fail() [L84] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product02.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 595 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 780 SDtfs, 997 SDslu, 1216 SDs, 0 SdLazy, 1889 SolverSat, 309 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 192 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...