/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_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:55:15,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:55:15,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:55:15,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:55:15,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:55:15,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:55:15,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:55:15,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:55:15,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:55:15,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:55:15,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:55:15,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:55:15,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:55:15,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:55:15,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:55:15,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:55:15,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:55:15,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:55:15,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:55:15,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:55:15,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:55:15,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:55:15,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:55:15,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:55:15,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:55:15,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:55:15,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:55:15,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:55:15,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:55:15,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:55:15,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:55:15,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:55:15,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:55:15,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:55:15,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:55:15,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:55:15,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:55:15,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:55:15,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:55:15,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:55:15,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:55:15,678 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 19:55:15,689 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:55:15,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:55:15,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:55:15,691 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:55:15,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:55:15,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:55:15,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:55:15,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:55:15,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:55:15,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:55:15,692 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:55:15,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:55:15,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:55:15,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:55:15,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:55:15,693 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:55:15,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:55:15,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:55:15,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:55:15,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:55:15,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:55:15,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:55:15,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:55:16,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:55:16,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:55:16,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:55:16,125 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:55:16,126 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:55:16,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2020-10-23 19:55:16,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46ebd57ec/cf8ae8eb84a54020b9fd337b5f63d700/FLAG528fc6b36 [2020-10-23 19:55:16,853 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:55:16,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2020-10-23 19:55:16,890 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46ebd57ec/cf8ae8eb84a54020b9fd337b5f63d700/FLAG528fc6b36 [2020-10-23 19:55:17,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46ebd57ec/cf8ae8eb84a54020b9fd337b5f63d700 [2020-10-23 19:55:17,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:55:17,102 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:55:17,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:55:17,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:55:17,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:55:17,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:55:17" (1/1) ... [2020-10-23 19:55:17,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626c23dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:17, skipping insertion in model container [2020-10-23 19:55:17,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:55:17" (1/1) ... [2020-10-23 19:55:17,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:55:17,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:55:17,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:55:17,604 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:55:17,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:55:17,765 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:55:17,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:17 WrapperNode [2020-10-23 19:55:17,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:55:17,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:55:17,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:55:17,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:55:17,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:17" (1/1) ... [2020-10-23 19:55:17,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:17" (1/1) ... [2020-10-23 19:55:17,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:17" (1/1) ... [2020-10-23 19:55:17,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:17" (1/1) ... [2020-10-23 19:55:17,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:17" (1/1) ... [2020-10-23 19:55:17,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:17" (1/1) ... [2020-10-23 19:55:17,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:17" (1/1) ... [2020-10-23 19:55:17,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:55:17,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:55:17,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:55:17,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:55:17,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:17" (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 19:55:17,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:55:17,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:55:17,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:55:17,931 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:55:17,931 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:55:17,931 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:55:17,931 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:55:17,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:55:17,932 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:55:17,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:55:17,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:55:17,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:55:17,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:55:17,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:55:17,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:55:17,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:55:17,934 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:55:17,934 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:55:17,936 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:55:17,936 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:55:17,937 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:55:17,937 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:55:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:55:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:55:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:55:17,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:55:17,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:55:17,940 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:55:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:55:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:55:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:55:17,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:55:17,946 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:55:17,946 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:55:17,946 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:55:17,947 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:55:17,947 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:55:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:55:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:55:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:55:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:55:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:55:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:55:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:55:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:55:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:55:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:55:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:55:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:55:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:55:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:55:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:55:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:55:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:55:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:55:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:55:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:55:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:55:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:55:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:55:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:55:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:55:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:55:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:55:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:55:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:55:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:55:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:55:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:55:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:55:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:55:17,953 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:55:17,953 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:55:17,953 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:55:17,953 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:55:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:55:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:55:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:55:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:55:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:55:17,955 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:55:17,955 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:55:17,955 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:55:17,956 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:55:17,956 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:55:17,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:55:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:55:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:55:19,226 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:55:19,226 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:55:19,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:55:19 BoogieIcfgContainer [2020-10-23 19:55:19,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:55:19,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:55:19,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:55:19,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:55:19,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:55:17" (1/3) ... [2020-10-23 19:55:19,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121f42e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:55:19, skipping insertion in model container [2020-10-23 19:55:19,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:17" (2/3) ... [2020-10-23 19:55:19,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121f42e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:55:19, skipping insertion in model container [2020-10-23 19:55:19,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:55:19" (3/3) ... [2020-10-23 19:55:19,237 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2020-10-23 19:55:19,249 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:55:19,254 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:55:19,266 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:55:19,289 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:55:19,289 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:55:19,290 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:55:19,290 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:55:19,290 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:55:19,290 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:55:19,290 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:55:19,290 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:55:19,311 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states. [2020-10-23 19:55:19,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:55:19,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:19,330 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 19:55:19,331 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 19:55:19,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:19,337 INFO L82 PathProgramCache]: Analyzing trace with hash 348133695, now seen corresponding path program 1 times [2020-10-23 19:55:19,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:19,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134163130] [2020-10-23 19:55:19,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:19,419 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:20,316 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:20,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:20,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:20,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:20,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:20,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:20,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:55:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:20,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:55:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:20,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:55:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:20,542 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 19:55:20,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134163130] [2020-10-23 19:55:20,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:20,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:55:20,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758200480] [2020-10-23 19:55:20,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:55:20,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:20,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:55:20,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:55:20,585 INFO L87 Difference]: Start difference. First operand 280 states. Second operand 3 states. [2020-10-23 19:55:22,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:22,049 INFO L93 Difference]: Finished difference Result 404 states and 482 transitions. [2020-10-23 19:55:22,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:55:22,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:55:22,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:22,067 INFO L225 Difference]: With dead ends: 404 [2020-10-23 19:55:22,067 INFO L226 Difference]: Without dead ends: 260 [2020-10-23 19:55:22,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:55:22,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-23 19:55:22,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 220. [2020-10-23 19:55:22,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-23 19:55:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 235 transitions. [2020-10-23 19:55:22,202 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 235 transitions. Word has length 159 [2020-10-23 19:55:22,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:22,203 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 235 transitions. [2020-10-23 19:55:22,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:55:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 235 transitions. [2020-10-23 19:55:22,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:55:22,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:22,208 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 19:55:22,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:55:22,209 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 19:55:22,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:22,210 INFO L82 PathProgramCache]: Analyzing trace with hash 192684030, now seen corresponding path program 1 times [2020-10-23 19:55:22,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:22,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851562654] [2020-10-23 19:55:22,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:22,215 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:22,666 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:22,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:22,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:22,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:22,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:22,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:22,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:55:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:22,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:55:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:22,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:55:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:22,760 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 19:55:22,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851562654] [2020-10-23 19:55:22,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:22,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:55:22,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665251735] [2020-10-23 19:55:22,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:55:22,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:22,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:55:22,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:55:22,763 INFO L87 Difference]: Start difference. First operand 220 states and 235 transitions. Second operand 4 states. [2020-10-23 19:55:23,566 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:55:24,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:24,337 INFO L93 Difference]: Finished difference Result 305 states and 339 transitions. [2020-10-23 19:55:24,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:55:24,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:55:24,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:24,342 INFO L225 Difference]: With dead ends: 305 [2020-10-23 19:55:24,342 INFO L226 Difference]: Without dead ends: 243 [2020-10-23 19:55:24,344 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 19:55:24,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-10-23 19:55:24,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 210. [2020-10-23 19:55:24,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-23 19:55:24,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 222 transitions. [2020-10-23 19:55:24,427 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 222 transitions. Word has length 160 [2020-10-23 19:55:24,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:24,428 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 222 transitions. [2020-10-23 19:55:24,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:55:24,428 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 222 transitions. [2020-10-23 19:55:24,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:55:24,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:24,431 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 19:55:24,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:55:24,431 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 19:55:24,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:24,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1361226376, now seen corresponding path program 1 times [2020-10-23 19:55:24,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:24,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767751289] [2020-10-23 19:55:24,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:24,436 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:24,934 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:24,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:24,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:24,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:24,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:25,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:25,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:55:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:25,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:55:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:25,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:55:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:25,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:55:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:25,097 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 19:55:25,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767751289] [2020-10-23 19:55:25,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:25,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:55:25,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347486560] [2020-10-23 19:55:25,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:55:25,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:25,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:55:25,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:55:25,100 INFO L87 Difference]: Start difference. First operand 210 states and 222 transitions. Second operand 10 states. [2020-10-23 19:55:25,836 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:55:26,294 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:55:26,698 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:55:27,096 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:27,462 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:55:27,831 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:28,926 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:55:30,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:30,844 INFO L93 Difference]: Finished difference Result 559 states and 647 transitions. [2020-10-23 19:55:30,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:55:30,845 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:55:30,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:30,851 INFO L225 Difference]: With dead ends: 559 [2020-10-23 19:55:30,852 INFO L226 Difference]: Without dead ends: 464 [2020-10-23 19:55:30,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:55:30,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-23 19:55:31,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 363. [2020-10-23 19:55:31,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-10-23 19:55:31,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 398 transitions. [2020-10-23 19:55:31,026 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 398 transitions. Word has length 173 [2020-10-23 19:55:31,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:31,026 INFO L481 AbstractCegarLoop]: Abstraction has 363 states and 398 transitions. [2020-10-23 19:55:31,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:55:31,027 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 398 transitions. [2020-10-23 19:55:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 19:55:31,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:31,030 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 19:55:31,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:55:31,031 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 19:55:31,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:31,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2138961886, now seen corresponding path program 1 times [2020-10-23 19:55:31,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:31,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245896014] [2020-10-23 19:55:31,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:31,035 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:31,434 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:31,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:31,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:31,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:31,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:31,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:31,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:55:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:31,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:55:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:31,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 19:55:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:31,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 19:55:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:31,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-23 19:55:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:31,593 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 19:55:31,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1245896014] [2020-10-23 19:55:31,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:31,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:55:31,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333525908] [2020-10-23 19:55:31,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:55:31,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:31,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:55:31,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:55:31,595 INFO L87 Difference]: Start difference. First operand 363 states and 398 transitions. Second operand 9 states. [2020-10-23 19:55:32,275 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:55:33,998 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:34,420 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:55:34,842 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:35,256 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:55:35,634 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:55:36,043 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:36,422 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:37,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:37,138 INFO L93 Difference]: Finished difference Result 916 states and 1084 transitions. [2020-10-23 19:55:37,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:55:37,138 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-10-23 19:55:37,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:37,145 INFO L225 Difference]: With dead ends: 916 [2020-10-23 19:55:37,146 INFO L226 Difference]: Without dead ends: 668 [2020-10-23 19:55:37,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:55:37,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2020-10-23 19:55:37,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 585. [2020-10-23 19:55:37,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-23 19:55:37,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 661 transitions. [2020-10-23 19:55:37,422 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 661 transitions. Word has length 176 [2020-10-23 19:55:37,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:37,423 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 661 transitions. [2020-10-23 19:55:37,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:55:37,423 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 661 transitions. [2020-10-23 19:55:37,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-23 19:55:37,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:37,427 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 19:55:37,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:55:37,428 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 19:55:37,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:37,428 INFO L82 PathProgramCache]: Analyzing trace with hash -183750465, now seen corresponding path program 1 times [2020-10-23 19:55:37,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:37,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412315573] [2020-10-23 19:55:37,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:37,432 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:55:37,514 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:55:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:55:37,607 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:55:37,840 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:55:37,841 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:55:37,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:55:37,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:55:37 BoogieIcfgContainer [2020-10-23 19:55:37,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:55:37,863 INFO L168 Benchmark]: Toolchain (without parser) took 20766.94 ms. Allocated memory was 154.1 MB in the beginning and 478.2 MB in the end (delta: 324.0 MB). Free memory was 136.7 MB in the beginning and 414.3 MB in the end (delta: -277.6 MB). Peak memory consumption was 293.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:37,864 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 126.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:55:37,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.31 ms. Allocated memory is still 154.1 MB. Free memory was 135.9 MB in the beginning and 129.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:37,865 INFO L168 Benchmark]: Boogie Preprocessor took 82.07 ms. Allocated memory is still 154.1 MB. Free memory was 129.4 MB in the beginning and 125.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:37,866 INFO L168 Benchmark]: RCFGBuilder took 1379.21 ms. Allocated memory was 154.1 MB in the beginning and 188.7 MB in the end (delta: 34.6 MB). Free memory was 125.5 MB in the beginning and 103.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 58.8 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:37,867 INFO L168 Benchmark]: TraceAbstraction took 18631.07 ms. Allocated memory was 188.7 MB in the beginning and 478.2 MB in the end (delta: 289.4 MB). Free memory was 102.5 MB in the beginning and 414.3 MB in the end (delta: -311.8 MB). Peak memory consumption was 225.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:37,870 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 126.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 662.31 ms. Allocated memory is still 154.1 MB. Free memory was 135.9 MB in the beginning and 129.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 82.07 ms. Allocated memory is still 154.1 MB. Free memory was 129.4 MB in the beginning and 125.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1379.21 ms. Allocated memory was 154.1 MB in the beginning and 188.7 MB in the end (delta: 34.6 MB). Free memory was 125.5 MB in the beginning and 103.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 58.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18631.07 ms. Allocated memory was 188.7 MB in the beginning and 478.2 MB in the end (delta: 289.4 MB). Free memory was 102.5 MB in the beginning and 414.3 MB in the end (delta: -311.8 MB). Peak memory consumption was 225.1 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: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L532] int cleanupTimeShifts = 4; [L679] int pumpRunning = 0; [L680] int systemActive = 1; [L608] int retValue_acc ; [L609] int tmp ; [L613] FCALL select_helpers() [L614] FCALL select_features() [L615] CALL, EXPR valid_product() [L523] int retValue_acc ; [L526] retValue_acc = 1 [L527] return (retValue_acc); [L615] RET, EXPR valid_product() [L615] tmp = valid_product() [L617] COND TRUE \read(tmp) [L619] FCALL setup() [L620] CALL runTest() [L602] CALL test() [L810] int splverifierCounter ; [L811] int tmp ; [L812] int tmp___0 ; [L813] int tmp___1 ; [L814] int tmp___2 ; [L817] splverifierCounter = 0 [L819] COND TRUE 1 [L821] COND TRUE splverifierCounter < 4 [L827] tmp = __VERIFIER_nondet_int() [L829] COND TRUE \read(tmp) [L831] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L831] RET waterRise() [L837] tmp___0 = __VERIFIER_nondet_int() [L839] COND FALSE !(\read(tmp___0)) [L847] tmp___2 = __VERIFIER_nondet_int() [L849] COND TRUE \read(tmp___2) [L851] CALL startSystem() [L804] systemActive = 1 [L851] RET startSystem() [L866] CALL timeShift() [L686] COND FALSE !(\read(pumpRunning)) [L693] COND TRUE \read(systemActive) [L695] FCALL processEnvironment() [L701] CALL __utac_acc__Specification3_spec__1() [L642] int tmp ; [L643] int tmp___0 ; [L644] int tmp___1 ; [L648] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L648] RET, EXPR isMethaneLevelCritical() [L648] tmp = isMethaneLevelCritical() [L650] COND FALSE !(\read(tmp)) [L654] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L654] RET, EXPR getWaterLevel() [L654] tmp___0 = getWaterLevel() [L656] COND TRUE tmp___0 == 2 [L658] CALL, EXPR isPumpRunning() [L741] int retValue_acc ; [L744] retValue_acc = pumpRunning [L745] return (retValue_acc); [L658] RET, EXPR isPumpRunning() [L658] tmp___1 = isPumpRunning() [L660] COND FALSE !(\read(tmp___1)) [L664] CALL __automaton_fail() [L635] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product04.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 601 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 824 SDtfs, 1041 SDslu, 1475 SDs, 0 SdLazy, 2375 SolverSat, 338 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=585occurred 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: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 257 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...