/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_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:00:37,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:00:37,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:00:37,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:00:37,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:00:37,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:00:37,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:00:37,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:00:37,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:00:37,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:00:37,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:00:37,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:00:37,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:00:37,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:00:37,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:00:37,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:00:37,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:00:37,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:00:37,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:00:37,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:00:37,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:00:37,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:00:37,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:00:37,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:00:37,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:00:37,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:00:37,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:00:37,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:00:37,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:00:37,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:00:37,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:00:37,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:00:37,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:00:37,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:00:37,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:00:37,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:00:37,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:00:37,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:00:37,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:00:37,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:00:37,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:00:37,376 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 00:00:37,389 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:00:37,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:00:37,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:00:37,391 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:00:37,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:00:37,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:00:37,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:00:37,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:00:37,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:00:37,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:00:37,393 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:00:37,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:00:37,393 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:00:37,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:00:37,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:00:37,394 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:00:37,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:00:37,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:00:37,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:00:37,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:00:37,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:00:37,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:00:37,395 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:00:37,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:00:37,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:00:37,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:00:37,852 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:00:37,853 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:00:37,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-11-07 00:00:37,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67462b011/87bca7e9cbe349e7952985716ed17e5c/FLAG448bcc0ed [2020-11-07 00:00:38,676 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:00:38,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-11-07 00:00:38,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67462b011/87bca7e9cbe349e7952985716ed17e5c/FLAG448bcc0ed [2020-11-07 00:00:38,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67462b011/87bca7e9cbe349e7952985716ed17e5c [2020-11-07 00:00:39,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:00:39,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:00:39,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:00:39,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:00:39,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:00:39,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:38" (1/1) ... [2020-11-07 00:00:39,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3256c09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:39, skipping insertion in model container [2020-11-07 00:00:39,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:38" (1/1) ... [2020-11-07 00:00:39,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:00:39,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:00:39,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:00:39,496 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:00:39,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:00:39,683 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:00:39,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:39 WrapperNode [2020-11-07 00:00:39,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:00:39,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:00:39,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:00:39,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:00:39,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:39" (1/1) ... [2020-11-07 00:00:39,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:39" (1/1) ... [2020-11-07 00:00:39,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:39" (1/1) ... [2020-11-07 00:00:39,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:39" (1/1) ... [2020-11-07 00:00:39,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:39" (1/1) ... [2020-11-07 00:00:39,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:39" (1/1) ... [2020-11-07 00:00:39,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:39" (1/1) ... [2020-11-07 00:00:39,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:00:39,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:00:39,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:00:39,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:00:39,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:39" (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 00:00:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:00:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:00:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:00:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:00:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:00:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:00:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:00:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:00:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:00:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:00:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:00:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:00:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:00:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:00:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:00:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:00:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:00:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:00:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:00:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:00:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:00:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:00:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:00:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:00:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-11-07 00:00:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:00:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:00:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:00:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:00:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:00:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 00:00:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:00:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:00:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:00:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:00:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:00:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:00:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:00:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:00:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:00:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:00:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:00:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:00:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:00:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:00:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:00:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:00:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:00:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:00:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:00:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:00:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:00:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:00:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:00:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:00:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:00:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:00:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:00:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:00:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:00:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:00:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:00:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:00:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:00:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:00:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:00:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:00:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:00:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:00:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 00:00:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:00:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:00:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:00:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:00:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:00:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:00:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:00:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:00:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:00:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-11-07 00:00:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:00:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:00:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:00:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:00:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:00:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:00:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:00:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:00:41,223 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:00:41,223 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:00:41,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:41 BoogieIcfgContainer [2020-11-07 00:00:41,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:00:41,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:00:41,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:00:41,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:00:41,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:00:38" (1/3) ... [2020-11-07 00:00:41,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37dde303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:41, skipping insertion in model container [2020-11-07 00:00:41,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:39" (2/3) ... [2020-11-07 00:00:41,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37dde303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:41, skipping insertion in model container [2020-11-07 00:00:41,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:41" (3/3) ... [2020-11-07 00:00:41,238 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2020-11-07 00:00:41,253 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:00:41,258 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:00:41,271 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:00:41,293 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:00:41,293 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:00:41,293 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:00:41,293 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:00:41,294 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:00:41,294 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:00:41,294 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:00:41,294 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:00:41,331 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-11-07 00:00:41,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:00:41,349 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:41,350 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 00:00:41,350 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 00:00:41,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:41,357 INFO L82 PathProgramCache]: Analyzing trace with hash 929326269, now seen corresponding path program 1 times [2020-11-07 00:00:41,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:41,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366850061] [2020-11-07 00:00:41,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:41,444 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:42,195 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:42,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:42,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:42,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:42,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:42,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:42,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:00:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:42,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:00:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:42,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:00:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:42,433 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 00:00:42,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366850061] [2020-11-07 00:00:42,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:42,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:00:42,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809784129] [2020-11-07 00:00:42,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:00:42,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:42,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:00:42,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:00:42,463 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2020-11-07 00:00:43,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:43,917 INFO L93 Difference]: Finished difference Result 384 states and 459 transitions. [2020-11-07 00:00:43,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:00:43,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:00:43,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:43,935 INFO L225 Difference]: With dead ends: 384 [2020-11-07 00:00:43,936 INFO L226 Difference]: Without dead ends: 249 [2020-11-07 00:00:43,940 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 00:00:43,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-11-07 00:00:44,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 211. [2020-11-07 00:00:44,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-11-07 00:00:44,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 225 transitions. [2020-11-07 00:00:44,071 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 225 transitions. Word has length 159 [2020-11-07 00:00:44,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:44,072 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 225 transitions. [2020-11-07 00:00:44,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:00:44,072 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 225 transitions. [2020-11-07 00:00:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:00:44,076 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:44,077 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 00:00:44,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:00:44,077 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 00:00:44,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:44,078 INFO L82 PathProgramCache]: Analyzing trace with hash -806384479, now seen corresponding path program 1 times [2020-11-07 00:00:44,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:44,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687019424] [2020-11-07 00:00:44,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:44,083 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:44,574 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:44,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:44,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:44,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:44,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:44,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:44,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:00:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:44,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:00:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:44,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:00:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:44,699 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 00:00:44,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687019424] [2020-11-07 00:00:44,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:44,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:00:44,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271701512] [2020-11-07 00:00:44,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:00:44,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:44,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:00:44,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:00:44,703 INFO L87 Difference]: Start difference. First operand 211 states and 225 transitions. Second operand 4 states. [2020-11-07 00:00:45,581 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:00:46,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:46,356 INFO L93 Difference]: Finished difference Result 294 states and 326 transitions. [2020-11-07 00:00:46,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:00:46,358 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:00:46,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:46,362 INFO L225 Difference]: With dead ends: 294 [2020-11-07 00:00:46,362 INFO L226 Difference]: Without dead ends: 232 [2020-11-07 00:00:46,364 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 [2020-11-07 00:00:46,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-11-07 00:00:46,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 201. [2020-11-07 00:00:46,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-07 00:00:46,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 212 transitions. [2020-11-07 00:00:46,472 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 212 transitions. Word has length 160 [2020-11-07 00:00:46,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:46,474 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 212 transitions. [2020-11-07 00:00:46,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:00:46,475 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 212 transitions. [2020-11-07 00:00:46,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 00:00:46,485 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:46,486 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] [2020-11-07 00:00:46,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:00:46,486 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 00:00:46,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:46,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1960308462, now seen corresponding path program 1 times [2020-11-07 00:00:46,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:46,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602630461] [2020-11-07 00:00:46,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:46,491 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:47,103 WARN L194 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:47,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:47,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:47,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:47,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:47,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:47,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:00:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:47,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:00:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:47,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:00:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:47,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:00:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:47,380 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 00:00:47,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602630461] [2020-11-07 00:00:47,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:47,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:00:47,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998614333] [2020-11-07 00:00:47,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:00:47,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:47,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:00:47,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:00:47,385 INFO L87 Difference]: Start difference. First operand 201 states and 212 transitions. Second operand 10 states. [2020-11-07 00:00:48,100 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:48,621 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:00:49,039 WARN L194 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 00:00:49,453 WARN L194 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:49,862 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:50,264 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:51,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:51,708 INFO L93 Difference]: Finished difference Result 340 states and 388 transitions. [2020-11-07 00:00:51,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:00:51,711 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-07 00:00:51,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:51,715 INFO L225 Difference]: With dead ends: 340 [2020-11-07 00:00:51,716 INFO L226 Difference]: Without dead ends: 254 [2020-11-07 00:00:51,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:00:51,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-11-07 00:00:51,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 201. [2020-11-07 00:00:51,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-07 00:00:51,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 211 transitions. [2020-11-07 00:00:51,806 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 211 transitions. Word has length 173 [2020-11-07 00:00:51,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:51,806 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 211 transitions. [2020-11-07 00:00:51,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:00:51,806 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 211 transitions. [2020-11-07 00:00:51,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-11-07 00:00:51,809 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:51,809 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] [2020-11-07 00:00:51,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:00:51,809 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 00:00:51,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:51,810 INFO L82 PathProgramCache]: Analyzing trace with hash -2012766727, now seen corresponding path program 1 times [2020-11-07 00:00:51,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:51,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184521528] [2020-11-07 00:00:51,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:51,814 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,278 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:52,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:00:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:00:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-11-07 00:00:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-07 00:00:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-11-07 00:00:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:52,447 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 00:00:52,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184521528] [2020-11-07 00:00:52,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:52,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:00:52,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473849992] [2020-11-07 00:00:52,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:00:52,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:52,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:00:52,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:00:52,450 INFO L87 Difference]: Start difference. First operand 201 states and 211 transitions. Second operand 9 states. [2020-11-07 00:00:53,144 WARN L194 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:54,719 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:55,131 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:55,567 WARN L194 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:56,021 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:56,421 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:56,857 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:57,214 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:57,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:57,744 INFO L93 Difference]: Finished difference Result 432 states and 503 transitions. [2020-11-07 00:00:57,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:00:57,745 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-11-07 00:00:57,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:57,752 INFO L225 Difference]: With dead ends: 432 [2020-11-07 00:00:57,752 INFO L226 Difference]: Without dead ends: 346 [2020-11-07 00:00:57,754 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 [2020-11-07 00:00:57,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-11-07 00:00:57,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 276. [2020-11-07 00:00:57,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-11-07 00:00:57,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 298 transitions. [2020-11-07 00:00:57,879 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 298 transitions. Word has length 176 [2020-11-07 00:00:57,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:57,880 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 298 transitions. [2020-11-07 00:00:57,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:00:57,880 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 298 transitions. [2020-11-07 00:00:57,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-11-07 00:00:57,883 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:57,883 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] [2020-11-07 00:00:57,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:00:57,883 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 00:00:57,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:57,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1116949369, now seen corresponding path program 1 times [2020-11-07 00:00:57,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:57,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861356361] [2020-11-07 00:00:57,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:57,887 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:00:57,958 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:00:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:00:58,028 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:00:58,241 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:00:58,241 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:00:58,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:00:58,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:00:58 BoogieIcfgContainer [2020-11-07 00:00:58,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:00:58,265 INFO L168 Benchmark]: Toolchain (without parser) took 19258.73 ms. Allocated memory was 165.7 MB in the beginning and 369.1 MB in the end (delta: 203.4 MB). Free memory was 141.2 MB in the beginning and 278.8 MB in the end (delta: -137.6 MB). Peak memory consumption was 66.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:58,265 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 125.8 MB. Free memory is still 102.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:00:58,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.03 ms. Allocated memory is still 165.7 MB. Free memory was 140.5 MB in the beginning and 120.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:58,267 INFO L168 Benchmark]: Boogie Preprocessor took 139.31 ms. Allocated memory is still 165.7 MB. Free memory was 120.5 MB in the beginning and 116.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:58,268 INFO L168 Benchmark]: RCFGBuilder took 1391.77 ms. Allocated memory is still 165.7 MB. Free memory was 116.6 MB in the beginning and 93.2 MB in the end (delta: 23.3 MB). Peak memory consumption was 24.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:58,269 INFO L168 Benchmark]: TraceAbstraction took 17033.03 ms. Allocated memory was 165.7 MB in the beginning and 369.1 MB in the end (delta: 203.4 MB). Free memory was 92.7 MB in the beginning and 278.8 MB in the end (delta: -186.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:58,272 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02 ms. Allocated memory is still 125.8 MB. Free memory is still 102.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 669.03 ms. Allocated memory is still 165.7 MB. Free memory was 140.5 MB in the beginning and 120.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 139.31 ms. Allocated memory is still 165.7 MB. Free memory was 120.5 MB in the beginning and 116.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1391.77 ms. Allocated memory is still 165.7 MB. Free memory was 116.6 MB in the beginning and 93.2 MB in the end (delta: 23.3 MB). Peak memory consumption was 24.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17033.03 ms. Allocated memory was 165.7 MB in the beginning and 369.1 MB in the end (delta: 203.4 MB). Free memory was 92.7 MB in the beginning and 278.8 MB in the end (delta: -186.1 MB). Peak memory consumption was 17.3 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: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L615] int pumpRunning = 0; [L616] int systemActive = 1; [L783] int cleanupTimeShifts = 4; [L856] int retValue_acc ; [L857] int tmp ; [L861] FCALL select_helpers() [L862] FCALL select_features() [L863] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L863] RET, EXPR valid_product() [L863] tmp = valid_product() [L865] COND TRUE \read(tmp) [L867] FCALL setup() [L868] CALL runTest() [L850] CALL test() [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) [L566] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L566] RET waterRise() [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND TRUE \read(tmp___2) [L586] CALL startSystem() [L744] systemActive = 1 [L586] RET startSystem() [L599] CALL timeShift() [L623] COND FALSE !(\read(pumpRunning)) [L630] COND TRUE \read(systemActive) [L632] FCALL processEnvironment() [L638] CALL __utac_acc__Specification3_spec__1() [L750] int tmp ; [L751] int tmp___0 ; [L752] int tmp___1 ; [L756] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L756] RET, EXPR isMethaneLevelCritical() [L756] tmp = isMethaneLevelCritical() [L758] COND FALSE !(\read(tmp)) [L762] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L762] RET, EXPR getWaterLevel() [L762] tmp___0 = getWaterLevel() [L764] COND TRUE tmp___0 == 2 [L766] CALL, EXPR isPumpRunning() [L696] int retValue_acc ; [L699] retValue_acc = pumpRunning [L700] return (retValue_acc); [L766] RET, EXPR isPumpRunning() [L766] tmp___1 = isPumpRunning() [L768] COND FALSE !(\read(tmp___1)) [L772] CALL __automaton_fail() [L170] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product10.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 604 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 780 SDtfs, 997 SDslu, 1219 SDs, 0 SdLazy, 1889 SolverSat, 307 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 192 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...