/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_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:00:50,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:00:50,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:00:50,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:00:50,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:00:50,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:00:50,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:00:50,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:00:50,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:00:50,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:00:50,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:00:50,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:00:50,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:00:50,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:00:50,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:00:50,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:00:50,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:00:50,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:00:50,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:00:50,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:00:50,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:00:50,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:00:50,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:00:50,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:00:50,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:00:50,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:00:50,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:00:50,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:00:50,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:00:50,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:00:50,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:00:50,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:00:50,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:00:50,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:00:50,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:00:50,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:00:50,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:00:50,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:00:50,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:00:50,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:00:50,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:00:50,465 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:00:50,476 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:00:50,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:00:50,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:00:50,478 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:00:50,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:00:50,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:00:50,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:00:50,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:00:50,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:00:50,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:00:50,479 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:00:50,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:00:50,480 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:00:50,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:00:50,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:00:50,480 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:00:50,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:00:50,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:00:50,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:00:50,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:00:50,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:00:50,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:00:50,482 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:00:50,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:00:50,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:00:50,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:00:50,881 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:00:50,881 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:00:50,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c [2020-11-07 00:00:50,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f8bda78/678ba573b9e84ec09e039c190338ef7f/FLAG72a6e7e65 [2020-11-07 00:00:51,682 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:00:51,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c [2020-11-07 00:00:51,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f8bda78/678ba573b9e84ec09e039c190338ef7f/FLAG72a6e7e65 [2020-11-07 00:00:51,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f8bda78/678ba573b9e84ec09e039c190338ef7f [2020-11-07 00:00:51,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:00:51,928 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:00:51,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:00:51,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:00:51,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:00:51,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:51" (1/1) ... [2020-11-07 00:00:51,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692a7452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:51, skipping insertion in model container [2020-11-07 00:00:51,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:51" (1/1) ... [2020-11-07 00:00:51,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:00:52,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:00:52,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:00:52,427 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:00:52,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:00:52,575 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:00:52,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:52 WrapperNode [2020-11-07 00:00:52,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:00:52,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:00:52,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:00:52,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:00:52,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:52" (1/1) ... [2020-11-07 00:00:52,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:52" (1/1) ... [2020-11-07 00:00:52,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:52" (1/1) ... [2020-11-07 00:00:52,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:52" (1/1) ... [2020-11-07 00:00:52,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:52" (1/1) ... [2020-11-07 00:00:52,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:52" (1/1) ... [2020-11-07 00:00:52,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:52" (1/1) ... [2020-11-07 00:00:52,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:00:52,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:00:52,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:00:52,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:00:52,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:52" (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 [2020-11-07 00:00:52,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:00:52,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:00:52,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:00:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:00:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:00:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:00:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:00:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-11-07 00:00:52,769 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:00:52,769 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:00:52,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:00:52,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:00:52,769 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:00:52,770 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:00:52,770 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:00:52,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:00:52,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:00:52,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:00:52,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:00:52,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:00:52,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:00:52,772 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:00:52,774 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:00:52,774 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:00:52,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:00:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:00:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:00:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:00:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:00:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:00:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:00:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:00:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:00:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:00:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:00:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:00:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:00:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:00:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:00:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:00:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:00:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:00:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:00:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:00:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:00:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:00:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:00:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:00:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:00:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:00:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:00:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:00:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:00:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:00:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:00:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:00:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:00:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-11-07 00:00:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:00:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:00:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:00:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:00:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:00:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:00:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:00:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:00:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:00:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:00:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:00:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:00:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:00:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:00:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:00:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:00:52,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:00:52,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:00:52,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:00:52,782 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:00:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:00:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:00:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:00:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:00:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:00:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:00:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:00:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:00:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:00:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:00:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:00:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:00:53,992 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:00:53,992 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:00:53,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:53 BoogieIcfgContainer [2020-11-07 00:00:53,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:00:53,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:00:53,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:00:54,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:00:54,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:00:51" (1/3) ... [2020-11-07 00:00:54,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616880e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:54, skipping insertion in model container [2020-11-07 00:00:54,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:52" (2/3) ... [2020-11-07 00:00:54,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616880e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:54, skipping insertion in model container [2020-11-07 00:00:54,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:53" (3/3) ... [2020-11-07 00:00:54,004 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2020-11-07 00:00:54,020 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:00:54,024 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:00:54,036 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:00:54,060 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:00:54,060 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:00:54,060 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:00:54,060 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:00:54,060 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:00:54,060 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:00:54,061 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:00:54,061 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:00:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-11-07 00:00:54,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:00:54,124 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:54,125 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] [2020-11-07 00:00:54,125 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]=== [2020-11-07 00:00:54,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:54,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1385097176, now seen corresponding path program 1 times [2020-11-07 00:00:54,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:54,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81552364] [2020-11-07 00:00:54,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:54,217 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:54,970 WARN L194 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:54,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:00:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:00:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:00:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:00:55,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81552364] [2020-11-07 00:00:55,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:55,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:00:55,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043781898] [2020-11-07 00:00:55,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:00:55,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:55,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:00:55,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:00:55,221 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 3 states. [2020-11-07 00:00:56,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:56,737 INFO L93 Difference]: Finished difference Result 437 states and 525 transitions. [2020-11-07 00:00:56,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:00:56,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:00:56,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:56,767 INFO L225 Difference]: With dead ends: 437 [2020-11-07 00:00:56,767 INFO L226 Difference]: Without dead ends: 277 [2020-11-07 00:00:56,775 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 [2020-11-07 00:00:56,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-11-07 00:00:56,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2020-11-07 00:00:56,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-11-07 00:00:56,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 256 transitions. [2020-11-07 00:00:56,977 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 256 transitions. Word has length 159 [2020-11-07 00:00:56,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:56,978 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 256 transitions. [2020-11-07 00:00:56,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:00:56,978 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 256 transitions. [2020-11-07 00:00:56,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:00:56,982 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:56,982 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] [2020-11-07 00:00:56,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:00:56,983 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]=== [2020-11-07 00:00:56,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:56,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1104160339, now seen corresponding path program 1 times [2020-11-07 00:00:56,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:56,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771491677] [2020-11-07 00:00:56,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:56,989 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:57,482 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:57,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:57,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:57,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:57,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:57,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:57,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:00:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:57,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:00:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:57,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:00:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:00:57,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771491677] [2020-11-07 00:00:57,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:57,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:00:57,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846632458] [2020-11-07 00:00:57,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:00:57,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:57,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:00:57,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:00:57,592 INFO L87 Difference]: Start difference. First operand 236 states and 256 transitions. Second operand 4 states. [2020-11-07 00:00:58,435 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:00:59,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:59,397 INFO L93 Difference]: Finished difference Result 345 states and 388 transitions. [2020-11-07 00:00:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:00:59,398 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:00:59,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:59,407 INFO L225 Difference]: With dead ends: 345 [2020-11-07 00:00:59,408 INFO L226 Difference]: Without dead ends: 260 [2020-11-07 00:00:59,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:00:59,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-11-07 00:00:59,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 226. [2020-11-07 00:00:59,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-07 00:00:59,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 243 transitions. [2020-11-07 00:00:59,501 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 243 transitions. Word has length 160 [2020-11-07 00:00:59,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:59,502 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 243 transitions. [2020-11-07 00:00:59,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:00:59,502 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 243 transitions. [2020-11-07 00:00:59,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:00:59,504 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:59,504 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] [2020-11-07 00:00:59,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:00:59,505 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]=== [2020-11-07 00:00:59,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:59,505 INFO L82 PathProgramCache]: Analyzing trace with hash -574420428, now seen corresponding path program 1 times [2020-11-07 00:00:59,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:59,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032276942] [2020-11-07 00:00:59,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:59,509 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:00,166 WARN L194 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:00,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:00,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:00,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:00,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:00,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:00,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:01:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:00,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:01:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:00,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:01:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:00,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:01:00,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032276942] [2020-11-07 00:01:00,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:00,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:01:00,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649653766] [2020-11-07 00:01:00,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:01:00,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:00,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:01:00,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:01:00,404 INFO L87 Difference]: Start difference. First operand 226 states and 243 transitions. Second operand 9 states. [2020-11-07 00:01:01,060 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:01,568 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:01:01,976 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:01:02,383 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:02,779 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:03,133 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:04,347 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:01:06,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:06,446 INFO L93 Difference]: Finished difference Result 587 states and 677 transitions. [2020-11-07 00:01:06,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:01:06,447 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:01:06,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:06,453 INFO L225 Difference]: With dead ends: 587 [2020-11-07 00:01:06,453 INFO L226 Difference]: Without dead ends: 476 [2020-11-07 00:01:06,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:01:06,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-11-07 00:01:06,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 411. [2020-11-07 00:01:06,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-11-07 00:01:06,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 460 transitions. [2020-11-07 00:01:06,669 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 460 transitions. Word has length 169 [2020-11-07 00:01:06,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:06,670 INFO L481 AbstractCegarLoop]: Abstraction has 411 states and 460 transitions. [2020-11-07 00:01:06,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:01:06,670 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 460 transitions. [2020-11-07 00:01:06,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 00:01:06,673 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:06,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:01:06,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:01:06,674 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]=== [2020-11-07 00:01:06,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:06,675 INFO L82 PathProgramCache]: Analyzing trace with hash -2048359531, now seen corresponding path program 1 times [2020-11-07 00:01:06,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:06,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336529502] [2020-11-07 00:01:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:06,678 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:07,053 WARN L194 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:07,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:07,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:07,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:07,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:07,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:07,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 00:01:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:07,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:01:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:07,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-07 00:01:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:07,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 00:01:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:07,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-07 00:01:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:07,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:01:07,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336529502] [2020-11-07 00:01:07,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:07,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:01:07,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423019748] [2020-11-07 00:01:07,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:01:07,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:07,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:01:07,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:01:07,216 INFO L87 Difference]: Start difference. First operand 411 states and 460 transitions. Second operand 9 states. [2020-11-07 00:01:07,863 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:09,874 WARN L194 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:10,272 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:10,670 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:11,083 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:11,452 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:11,827 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:12,187 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:13,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:13,130 INFO L93 Difference]: Finished difference Result 1169 states and 1460 transitions. [2020-11-07 00:01:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:01:13,131 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2020-11-07 00:01:13,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:13,140 INFO L225 Difference]: With dead ends: 1169 [2020-11-07 00:01:13,140 INFO L226 Difference]: Without dead ends: 873 [2020-11-07 00:01:13,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:01:13,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2020-11-07 00:01:13,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 685. [2020-11-07 00:01:13,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-11-07 00:01:13,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 791 transitions. [2020-11-07 00:01:13,493 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 791 transitions. Word has length 177 [2020-11-07 00:01:13,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:13,493 INFO L481 AbstractCegarLoop]: Abstraction has 685 states and 791 transitions. [2020-11-07 00:01:13,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:01:13,494 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 791 transitions. [2020-11-07 00:01:13,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-11-07 00:01:13,498 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:13,498 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, 1] [2020-11-07 00:01:13,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:01:13,499 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]=== [2020-11-07 00:01:13,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:13,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1732878084, now seen corresponding path program 1 times [2020-11-07 00:01:13,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:13,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055034336] [2020-11-07 00:01:13,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:13,503 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:01:13,578 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:01:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:01:13,649 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:01:13,834 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:01:13,834 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:01:13,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:01:13,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:01:13 BoogieIcfgContainer [2020-11-07 00:01:13,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:01:13,860 INFO L168 Benchmark]: Toolchain (without parser) took 21936.43 ms. Allocated memory was 160.4 MB in the beginning and 413.1 MB in the end (delta: 252.7 MB). Free memory was 134.5 MB in the beginning and 202.6 MB in the end (delta: -68.1 MB). Peak memory consumption was 185.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:13,860 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 160.4 MB. Free memory is still 134.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:01:13,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 642.71 ms. Allocated memory is still 160.4 MB. Free memory was 133.9 MB in the beginning and 113.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:13,862 INFO L168 Benchmark]: Boogie Preprocessor took 106.56 ms. Allocated memory is still 160.4 MB. Free memory was 113.5 MB in the beginning and 109.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:13,863 INFO L168 Benchmark]: RCFGBuilder took 1311.33 ms. Allocated memory was 160.4 MB in the beginning and 196.1 MB in the end (delta: 35.7 MB). Free memory was 109.6 MB in the beginning and 174.5 MB in the end (delta: -64.9 MB). Peak memory consumption was 60.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:13,864 INFO L168 Benchmark]: TraceAbstraction took 19860.80 ms. Allocated memory was 196.1 MB in the beginning and 413.1 MB in the end (delta: 217.1 MB). Free memory was 174.0 MB in the beginning and 202.6 MB in the end (delta: -28.6 MB). Peak memory consumption was 188.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:13,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 160.4 MB. Free memory is still 134.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 642.71 ms. Allocated memory is still 160.4 MB. Free memory was 133.9 MB in the beginning and 113.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 106.56 ms. Allocated memory is still 160.4 MB. Free memory was 113.5 MB in the beginning and 109.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1311.33 ms. Allocated memory was 160.4 MB in the beginning and 196.1 MB in the end (delta: 35.7 MB). Free memory was 109.6 MB in the beginning and 174.5 MB in the end (delta: -64.9 MB). Peak memory consumption was 60.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 19860.80 ms. Allocated memory was 196.1 MB in the beginning and 413.1 MB in the end (delta: 217.1 MB). Free memory was 174.0 MB in the beginning and 202.6 MB in the end (delta: -28.6 MB). Peak memory consumption was 188.4 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: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L456] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int waterLevel = 1; [L655] int methaneLevelCritical = 0; [L734] int cleanupTimeShifts = 4; [L810] int retValue_acc ; [L811] int tmp ; [L815] FCALL select_helpers() [L816] FCALL select_features() [L817] CALL, EXPR valid_product() [L903] int retValue_acc ; [L906] retValue_acc = 1 [L907] return (retValue_acc); [L817] RET, EXPR valid_product() [L817] tmp = valid_product() [L819] COND TRUE \read(tmp) [L821] FCALL setup() [L822] CALL runTest() [L801] CALL test() [L221] int splverifierCounter ; [L222] int tmp ; [L223] int tmp___0 ; [L224] int tmp___1 ; [L225] int tmp___2 ; [L228] splverifierCounter = 0 [L230] COND TRUE 1 [L232] COND TRUE splverifierCounter < 4 [L238] tmp = __VERIFIER_nondet_int() [L240] COND TRUE \read(tmp) [L242] CALL waterRise() [L672] COND TRUE waterLevel < 2 [L673] waterLevel = waterLevel + 1 [L242] RET waterRise() [L248] tmp___0 = __VERIFIER_nondet_int() [L250] COND FALSE !(\read(tmp___0)) [L258] tmp___2 = __VERIFIER_nondet_int() [L260] COND TRUE \read(tmp___2) [L275] CALL timeShift() [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L68] CALL processEnvironment() [L88] int tmp ; [L91] COND FALSE !(\read(pumpRunning)) [L106] FCALL processEnvironment__wrappee__methaneQuery() [L68] RET processEnvironment() [L74] CALL __utac_acc__Specification3_spec__1() [L835] int tmp ; [L836] int tmp___0 ; [L837] int tmp___1 ; [L841] CALL, EXPR isMethaneLevelCritical() [L693] int retValue_acc ; [L696] retValue_acc = methaneLevelCritical [L697] return (retValue_acc); [L841] RET, EXPR isMethaneLevelCritical() [L841] tmp = isMethaneLevelCritical() [L843] COND FALSE !(\read(tmp)) [L847] CALL, EXPR getWaterLevel() [L725] int retValue_acc ; [L728] retValue_acc = waterLevel [L729] return (retValue_acc); [L847] RET, EXPR getWaterLevel() [L847] tmp___0 = getWaterLevel() [L849] COND TRUE tmp___0 == 2 [L851] CALL, EXPR isPumpRunning() [L157] int retValue_acc ; [L160] retValue_acc = pumpRunning [L161] return (retValue_acc); [L851] RET, EXPR isPumpRunning() [L851] tmp___1 = isPumpRunning() [L853] COND FALSE !(\read(tmp___1)) [L857] CALL __automaton_fail() [L872] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product15.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 618 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 904 SDtfs, 1029 SDslu, 1393 SDs, 0 SdLazy, 2775 SolverSat, 356 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=685occurred 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: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 328 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...