/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_spec4_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:11:49,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:11:49,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:11:49,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:11:49,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:11:49,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:11:49,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:11:49,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:11:49,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:11:49,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:11:49,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:11:49,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:11:49,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:11:49,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:11:49,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:11:49,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:11:49,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:11:49,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:11:49,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:11:49,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:11:49,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:11:49,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:11:49,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:11:49,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:11:49,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:11:49,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:11:49,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:11:49,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:11:49,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:11:49,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:11:49,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:11:49,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:11:49,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:11:49,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:11:49,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:11:49,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:11:49,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:11:49,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:11:49,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:11:49,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:11:49,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:11:49,921 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 20:11:49,934 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:11:49,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:11:49,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:11:49,937 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:11:49,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:11:49,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:11:49,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:11:49,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:11:49,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:11:49,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:11:49,939 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:11:49,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:11:49,939 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:11:49,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:11:49,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:11:49,940 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:11:49,940 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:11:49,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:11:49,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:11:49,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:11:49,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:11:49,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:11:49,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:11:50,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:11:50,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:11:50,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:11:50,427 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:11:50,427 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:11:50,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c [2020-10-23 20:11:50,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2690d6b7d/0ab48170884849d7beea287b7e037ad9/FLAG086986656 [2020-10-23 20:11:51,325 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:11:51,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c [2020-10-23 20:11:51,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2690d6b7d/0ab48170884849d7beea287b7e037ad9/FLAG086986656 [2020-10-23 20:11:51,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2690d6b7d/0ab48170884849d7beea287b7e037ad9 [2020-10-23 20:11:51,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:11:51,638 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:11:51,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:11:51,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:11:51,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:11:51,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:11:51" (1/1) ... [2020-10-23 20:11:51,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15dcdcff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:51, skipping insertion in model container [2020-10-23 20:11:51,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:11:51" (1/1) ... [2020-10-23 20:11:51,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:11:51,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:11:52,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:11:52,143 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:11:52,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:11:52,299 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:11:52,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:52 WrapperNode [2020-10-23 20:11:52,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:11:52,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:11:52,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:11:52,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:11:52,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:52" (1/1) ... [2020-10-23 20:11:52,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:52" (1/1) ... [2020-10-23 20:11:52,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:52" (1/1) ... [2020-10-23 20:11:52,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:52" (1/1) ... [2020-10-23 20:11:52,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:52" (1/1) ... [2020-10-23 20:11:52,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:52" (1/1) ... [2020-10-23 20:11:52,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:52" (1/1) ... [2020-10-23 20:11:52,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:11:52,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:11:52,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:11:52,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:11:52,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:11:52,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:11:52,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:11:52,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:11:52,633 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:11:52,633 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:11:52,633 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:11:52,633 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:11:52,634 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:11:52,634 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:11:52,634 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:11:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:11:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:11:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 20:11:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:11:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 20:11:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:11:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:11:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:11:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:11:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:11:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:11:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:11:52,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:11:52,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:11:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:11:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:11:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:11:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:11:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:11:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:11:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:11:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:11:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:11:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:11:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:11:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:11:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:11:52,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:11:52,646 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:11:52,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:11:52,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:11:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:11:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:11:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:11:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:11:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:11:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:11:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:11:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:11:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:11:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:11:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:11:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:11:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:11:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:11:52,650 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:11:52,650 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:11:52,650 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:11:52,650 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:11:52,650 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:11:52,650 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:11:52,651 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:11:52,651 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:11:52,651 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:11:52,651 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:11:52,651 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:11:52,651 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:11:52,652 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:11:52,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:11:52,652 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:11:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:11:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:11:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 20:11:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:11:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 20:11:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:11:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:11:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:11:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:11:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:11:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:11:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:11:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:11:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:11:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:11:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:11:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:11:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:11:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:11:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:11:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:11:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:11:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:11:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:11:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:11:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:11:54,317 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:11:54,317 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:11:54,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:11:54 BoogieIcfgContainer [2020-10-23 20:11:54,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:11:54,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:11:54,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:11:54,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:11:54,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:11:51" (1/3) ... [2020-10-23 20:11:54,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d69fc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:11:54, skipping insertion in model container [2020-10-23 20:11:54,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:52" (2/3) ... [2020-10-23 20:11:54,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d69fc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:11:54, skipping insertion in model container [2020-10-23 20:11:54,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:11:54" (3/3) ... [2020-10-23 20:11:54,332 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product47.cil.c [2020-10-23 20:11:54,352 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:11:54,360 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:11:54,376 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:11:54,417 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:11:54,417 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:11:54,418 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:11:54,418 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:11:54,419 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:11:54,419 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:11:54,419 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:11:54,419 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:11:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states. [2020-10-23 20:11:54,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:11:54,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:54,508 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] [2020-10-23 20:11:54,510 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 20:11:54,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:54,522 INFO L82 PathProgramCache]: Analyzing trace with hash -35628097, now seen corresponding path program 1 times [2020-10-23 20:11:54,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:54,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703387302] [2020-10-23 20:11:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:54,624 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:55,566 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:55,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:55,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:55,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:55,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:55,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:55,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:11:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:55,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:11:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:55,732 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 20:11:55,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703387302] [2020-10-23 20:11:55,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:55,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:11:55,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162064622] [2020-10-23 20:11:55,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:11:55,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:55,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:11:55,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:11:55,765 INFO L87 Difference]: Start difference. First operand 330 states. Second operand 3 states. [2020-10-23 20:11:58,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:58,082 INFO L93 Difference]: Finished difference Result 521 states and 620 transitions. [2020-10-23 20:11:58,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:11:58,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:11:58,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:58,106 INFO L225 Difference]: With dead ends: 521 [2020-10-23 20:11:58,106 INFO L226 Difference]: Without dead ends: 321 [2020-10-23 20:11:58,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 20:11:58,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-23 20:11:58,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 276. [2020-10-23 20:11:58,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-23 20:11:58,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 301 transitions. [2020-10-23 20:11:58,300 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 301 transitions. Word has length 148 [2020-10-23 20:11:58,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:58,302 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 301 transitions. [2020-10-23 20:11:58,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:11:58,302 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 301 transitions. [2020-10-23 20:11:58,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:11:58,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:58,307 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] [2020-10-23 20:11:58,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:11:58,308 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 20:11:58,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:58,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1416708451, now seen corresponding path program 1 times [2020-10-23 20:11:58,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:58,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328171065] [2020-10-23 20:11:58,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:58,316 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:58,931 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:58,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:59,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:59,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:59,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:59,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:59,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:11:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:59,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:11:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:59,101 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 20:11:59,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328171065] [2020-10-23 20:11:59,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:59,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:11:59,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820233453] [2020-10-23 20:11:59,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:11:59,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:59,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:11:59,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:11:59,106 INFO L87 Difference]: Start difference. First operand 276 states and 301 transitions. Second operand 4 states. [2020-10-23 20:12:00,043 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:12:01,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:01,602 INFO L93 Difference]: Finished difference Result 429 states and 483 transitions. [2020-10-23 20:12:01,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:12:01,603 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:12:01,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:01,608 INFO L225 Difference]: With dead ends: 429 [2020-10-23 20:12:01,608 INFO L226 Difference]: Without dead ends: 304 [2020-10-23 20:12:01,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:12:01,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-10-23 20:12:01,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 266. [2020-10-23 20:12:01,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-23 20:12:01,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 288 transitions. [2020-10-23 20:12:01,741 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 288 transitions. Word has length 149 [2020-10-23 20:12:01,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:01,744 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 288 transitions. [2020-10-23 20:12:01,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:12:01,745 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 288 transitions. [2020-10-23 20:12:01,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:12:01,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:01,751 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] [2020-10-23 20:12:01,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:12:01,752 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 20:12:01,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:01,753 INFO L82 PathProgramCache]: Analyzing trace with hash -2033151781, now seen corresponding path program 1 times [2020-10-23 20:12:01,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:01,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736120295] [2020-10-23 20:12:01,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:01,760 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:02,299 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:02,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:02,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:02,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:02,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:02,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:02,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:12:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:02,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:12:02,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:02,515 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 20:12:02,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736120295] [2020-10-23 20:12:02,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:02,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:12:02,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507211304] [2020-10-23 20:12:02,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:12:02,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:02,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:12:02,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:12:02,520 INFO L87 Difference]: Start difference. First operand 266 states and 288 transitions. Second operand 9 states. [2020-10-23 20:12:03,354 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:03,902 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:12:04,337 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:12:04,816 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:05,262 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:05,678 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:07,014 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:12:10,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:10,289 INFO L93 Difference]: Finished difference Result 704 states and 810 transitions. [2020-10-23 20:12:10,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:12:10,294 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:12:10,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:10,299 INFO L225 Difference]: With dead ends: 704 [2020-10-23 20:12:10,299 INFO L226 Difference]: Without dead ends: 553 [2020-10-23 20:12:10,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:12:10,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-10-23 20:12:10,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 480. [2020-10-23 20:12:10,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2020-10-23 20:12:10,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 538 transitions. [2020-10-23 20:12:10,563 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 538 transitions. Word has length 158 [2020-10-23 20:12:10,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:10,565 INFO L481 AbstractCegarLoop]: Abstraction has 480 states and 538 transitions. [2020-10-23 20:12:10,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:12:10,565 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 538 transitions. [2020-10-23 20:12:10,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:12:10,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:10,572 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] [2020-10-23 20:12:10,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:12:10,573 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 20:12:10,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:10,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1861448144, now seen corresponding path program 1 times [2020-10-23 20:12:10,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:10,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365605690] [2020-10-23 20:12:10,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:10,580 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:11,142 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:11,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:11,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:11,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:11,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:11,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:11,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:12:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:11,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:12:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:11,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:12:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:11,408 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 20:12:11,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365605690] [2020-10-23 20:12:11,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:11,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:12:11,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741202154] [2020-10-23 20:12:11,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:12:11,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:11,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:12:11,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:12:11,412 INFO L87 Difference]: Start difference. First operand 480 states and 538 transitions. Second operand 14 states. [2020-10-23 20:12:12,177 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:12,741 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:12:13,171 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:12:13,623 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:14,064 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:14,492 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:15,480 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:12:17,328 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:17,920 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:18,598 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:19,114 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:12:19,566 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:12:19,976 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:20,425 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:12:20,897 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:21,317 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:21,966 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:22,551 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:12:23,047 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:23,606 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:26,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:26,689 INFO L93 Difference]: Finished difference Result 1667 states and 2086 transitions. [2020-10-23 20:12:26,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:12:26,690 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:12:26,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:26,702 INFO L225 Difference]: With dead ends: 1667 [2020-10-23 20:12:26,703 INFO L226 Difference]: Without dead ends: 1302 [2020-10-23 20:12:26,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:12:26,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-10-23 20:12:27,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1163. [2020-10-23 20:12:27,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1163 states. [2020-10-23 20:12:27,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1375 transitions. [2020-10-23 20:12:27,349 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1375 transitions. Word has length 167 [2020-10-23 20:12:27,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:27,350 INFO L481 AbstractCegarLoop]: Abstraction has 1163 states and 1375 transitions. [2020-10-23 20:12:27,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:12:27,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1375 transitions. [2020-10-23 20:12:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 20:12:27,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:27,361 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] [2020-10-23 20:12:27,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:12:27,363 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 20:12:27,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:27,363 INFO L82 PathProgramCache]: Analyzing trace with hash 362256202, now seen corresponding path program 1 times [2020-10-23 20:12:27,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:27,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242045845] [2020-10-23 20:12:27,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:27,367 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:27,862 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:27,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:27,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:27,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:27,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:27,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:27,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:12:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:27,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:12:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:27,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:12:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:27,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 20:12:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:28,029 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 20:12:28,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242045845] [2020-10-23 20:12:28,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:28,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:12:28,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267273055] [2020-10-23 20:12:28,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:12:28,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:28,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:12:28,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:12:28,033 INFO L87 Difference]: Start difference. First operand 1163 states and 1375 transitions. Second operand 6 states. [2020-10-23 20:12:28,749 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:32,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:32,361 INFO L93 Difference]: Finished difference Result 2742 states and 3408 transitions. [2020-10-23 20:12:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 20:12:32,361 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-10-23 20:12:32,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:32,378 INFO L225 Difference]: With dead ends: 2742 [2020-10-23 20:12:32,379 INFO L226 Difference]: Without dead ends: 1694 [2020-10-23 20:12:32,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:12:32,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2020-10-23 20:12:33,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1570. [2020-10-23 20:12:33,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1570 states. [2020-10-23 20:12:33,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1832 transitions. [2020-10-23 20:12:33,230 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1832 transitions. Word has length 172 [2020-10-23 20:12:33,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:33,232 INFO L481 AbstractCegarLoop]: Abstraction has 1570 states and 1832 transitions. [2020-10-23 20:12:33,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:12:33,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1832 transitions. [2020-10-23 20:12:33,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 20:12:33,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:33,238 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:33,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:12:33,238 INFO L429 AbstractCegarLoop]: === Iteration 6 === [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 20:12:33,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:33,239 INFO L82 PathProgramCache]: Analyzing trace with hash 151260184, now seen corresponding path program 1 times [2020-10-23 20:12:33,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:33,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982298747] [2020-10-23 20:12:33,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:33,420 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:33,714 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:34,003 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:34,289 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:34,589 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:34,879 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:35,134 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:35,396 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:35,665 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:35,951 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:36,244 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:36,531 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:36,806 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:37,076 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:37,611 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:37,996 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:38,366 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:38,744 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:39,107 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:39,466 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:39,839 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:40,199 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:40,203 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:41,656 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:12:41,679 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:44,254 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:12:44,268 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:46,901 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:12:46,907 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:48,183 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:12:48,190 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:50,741 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:12:50,745 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:53,343 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:12:55,852 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:12:55,862 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:58,346 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:12:58,352 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:58,357 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:00,996 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:03,599 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:03,608 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:06,167 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:06,173 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:08,797 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:11,430 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:11,435 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:14,009 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:14,013 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:16,753 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:16,758 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:18,227 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:18,232 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:18,237 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:20,762 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:13:23,307 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:25,876 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:25,881 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:28,515 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:28,520 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:31,051 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:31,055 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:33,657 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:33,662 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:36,302 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:36,307 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:38,884 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:13:38,889 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:38,917 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:41,489 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:41,493 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:43,015 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:43,019 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:45,633 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:45,638 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:48,288 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:50,870 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:53,471 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:53,474 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:56,177 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:58,771 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:58,775 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:58,778 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:59,154 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:59,563 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:59,972 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:00,410 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:00,817 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:01,225 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:01,619 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:02,025 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:02,028 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:02,438 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:02,857 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:03,286 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:14:03,702 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:14:04,084 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:14:04,481 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:14:04,888 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:05,302 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:14:05,304 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:05,717 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:14:06,126 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:14:06,552 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:14:06,928 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:07,324 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:14:07,754 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:14:08,161 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:08,564 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:08,567 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:08,979 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:09,371 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:14:09,773 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:14:10,214 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:10,630 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:14:11,072 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:11,490 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:11,903 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:14:11,905 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:14,570 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:14,575 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:16,353 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:18,975 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:18,978 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:21,594 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:21,599 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:24,232 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:24,236 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:26,873 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:26,878 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:29,362 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:29,367 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:31,004 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:31,010 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:33,700 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:33,706 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:35,658 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:35,662 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:38,283 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:38,285 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:40,944 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:40,949 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:43,526 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:43,531 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:46,101 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:46,105 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:48,681 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:51,283 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:51,286 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:51,290 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:52,926 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:52,929 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:55,495 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:55,498 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:58,121 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:58,125 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:00,742 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:15:00,746 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:02,250 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:15:02,254 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:04,803 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:04,805 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:07,351 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:07,356 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:09,891 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:09,895 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:09,898 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:10,268 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:15:10,666 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:15:11,056 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:15:11,429 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:15:11,793 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:15:12,163 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:15:12,541 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:15:12,901 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:15:12,903 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:14,518 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:14,521 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:17,086 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:17,089 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:19,682 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:19,685 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:21,233 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:21,236 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:23,761 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:26,374 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:26,377 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:28,982 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:28,986 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:31,552 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:31,555 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:31,559 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:15:31,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:15:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:15:32,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:15:33,158 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:15:33,158 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:15:33,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:15:33,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:15:33 BoogieIcfgContainer [2020-10-23 20:15:33,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:15:33,208 INFO L168 Benchmark]: Toolchain (without parser) took 221572.23 ms. Allocated memory was 151.0 MB in the beginning and 687.9 MB in the end (delta: 536.9 MB). Free memory was 126.5 MB in the beginning and 301.0 MB in the end (delta: -174.6 MB). Peak memory consumption was 363.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:15:33,209 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:15:33,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.45 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 104.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:15:33,217 INFO L168 Benchmark]: Boogie Preprocessor took 213.34 ms. Allocated memory is still 151.0 MB. Free memory was 104.3 MB in the beginning and 132.4 MB in the end (delta: -28.1 MB). Peak memory consumption was 6.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:15:33,217 INFO L168 Benchmark]: RCFGBuilder took 1803.17 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 86.0 MB in the end (delta: 46.4 MB). Peak memory consumption was 64.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:15:33,218 INFO L168 Benchmark]: TraceAbstraction took 218879.78 ms. Allocated memory was 151.0 MB in the beginning and 687.9 MB in the end (delta: 536.9 MB). Free memory was 86.0 MB in the beginning and 301.0 MB in the end (delta: -215.1 MB). Peak memory consumption was 321.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:15:33,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 659.45 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 104.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 213.34 ms. Allocated memory is still 151.0 MB. Free memory was 104.3 MB in the beginning and 132.4 MB in the end (delta: -28.1 MB). Peak memory consumption was 6.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1803.17 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 86.0 MB in the end (delta: 46.4 MB). Peak memory consumption was 64.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 218879.78 ms. Allocated memory was 151.0 MB in the beginning and 687.9 MB in the end (delta: 536.9 MB). Free memory was 86.0 MB in the beginning and 301.0 MB in the end (delta: -215.1 MB). Peak memory consumption was 321.8 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: [L42] int cleanupTimeShifts = 4; [L221] int pumpRunning = 0; [L222] int systemActive = 1; [L601] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L870] int waterLevel = 1; [L871] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L148] int splverifierCounter ; [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L152] int tmp___2 ; [L155] splverifierCounter = 0 [L157] COND TRUE 1 [L159] COND TRUE splverifierCounter < 4 [L165] tmp = __VERIFIER_nondet_int() [L167] COND TRUE \read(tmp) [L169] CALL waterRise() [L888] COND TRUE waterLevel < 2 [L889] waterLevel = waterLevel + 1 [L169] RET waterRise() [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND FALSE !(\read(tmp___0)) [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND FALSE !(\read(tmp___2)) [L191] tmp___1 = __VERIFIER_nondet_int() [L193] COND TRUE \read(tmp___1) [L195] CALL stopSystem() [L420] COND FALSE !(\read(pumpRunning)) [L427] systemActive = 0 [L195] RET stopSystem() [L202] CALL timeShift() [L229] COND FALSE !(\read(pumpRunning)) [L236] COND FALSE !(\read(systemActive)) [L244] CALL __utac_acc__Specification4_spec__1() [L801] int tmp ; [L802] int tmp___0 ; [L806] CALL, EXPR getWaterLevel() [L941] int retValue_acc ; [L944] retValue_acc = waterLevel [L945] return (retValue_acc); [L806] RET, EXPR getWaterLevel() [L806] tmp = getWaterLevel() [L808] COND FALSE !(tmp == 0) [L244] RET __utac_acc__Specification4_spec__1() [L202] RET timeShift() [L157] COND TRUE 1 [L159] COND TRUE splverifierCounter < 4 [L165] tmp = __VERIFIER_nondet_int() [L167] COND TRUE \read(tmp) [L169] CALL waterRise() [L888] COND TRUE waterLevel < 2 [L889] waterLevel = waterLevel + 1 [L169] RET waterRise() [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND FALSE !(\read(tmp___0)) [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND TRUE \read(tmp___2) [L202] CALL timeShift() [L229] COND FALSE !(\read(pumpRunning)) [L236] COND FALSE !(\read(systemActive)) [L244] CALL __utac_acc__Specification4_spec__1() [L801] int tmp ; [L802] int tmp___0 ; [L806] CALL, EXPR getWaterLevel() [L941] int retValue_acc ; [L944] retValue_acc = waterLevel [L945] return (retValue_acc); [L806] RET, EXPR getWaterLevel() [L806] tmp = getWaterLevel() [L808] COND TRUE tmp == 0 [L810] CALL, EXPR isPumpRunning() [L353] int retValue_acc ; [L356] retValue_acc = pumpRunning [L357] return (retValue_acc); [L810] RET, EXPR isPumpRunning() [L810] tmp___0 = isPumpRunning() [L812] COND TRUE \read(tmp___0) [L814] CALL __automaton_fail() [L830] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product47.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 646 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 218.7s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 32.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1293 SDtfs, 2405 SDslu, 2016 SDs, 0 SdLazy, 5122 SolverSat, 866 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 14.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1570occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 419 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...