/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_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:09:30,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:09:30,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:09:30,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:09:30,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:09:30,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:09:30,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:09:30,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:09:30,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:09:30,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:09:30,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:09:30,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:09:30,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:09:30,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:09:30,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:09:30,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:09:30,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:09:30,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:09:30,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:09:30,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:09:30,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:09:30,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:09:30,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:09:30,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:09:30,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:09:30,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:09:30,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:09:30,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:09:30,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:09:30,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:09:30,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:09:30,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:09:30,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:09:31,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:09:31,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:09:31,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:09:31,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:09:31,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:09:31,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:09:31,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:09:31,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:09:31,008 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 20:09:31,037 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:09:31,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:09:31,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:09:31,046 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:09:31,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:09:31,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:09:31,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:09:31,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:09:31,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:09:31,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:09:31,049 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:09:31,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:09:31,049 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:09:31,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:09:31,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:09:31,051 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:09:31,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:09:31,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:09:31,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:09:31,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:09:31,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:09:31,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:09:31,052 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:09:31,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:09:31,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:09:31,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:09:31,558 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:09:31,559 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:09:31,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-10-23 20:09:31,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/258264e9b/da159cf1837147d0ba9bbb1c8938335f/FLAG1d024d823 [2020-10-23 20:09:32,471 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:09:32,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-10-23 20:09:32,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/258264e9b/da159cf1837147d0ba9bbb1c8938335f/FLAG1d024d823 [2020-10-23 20:09:32,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/258264e9b/da159cf1837147d0ba9bbb1c8938335f [2020-10-23 20:09:32,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:09:32,754 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:09:32,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:09:32,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:09:32,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:09:32,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:09:32" (1/1) ... [2020-10-23 20:09:32,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f90f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:32, skipping insertion in model container [2020-10-23 20:09:32,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:09:32" (1/1) ... [2020-10-23 20:09:32,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:09:32,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:09:33,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:09:33,250 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:09:33,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:09:33,453 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:09:33,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:33 WrapperNode [2020-10-23 20:09:33,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:09:33,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:09:33,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:09:33,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:09:33,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:33" (1/1) ... [2020-10-23 20:09:33,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:33" (1/1) ... [2020-10-23 20:09:33,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:33" (1/1) ... [2020-10-23 20:09:33,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:33" (1/1) ... [2020-10-23 20:09:33,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:33" (1/1) ... [2020-10-23 20:09:33,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:33" (1/1) ... [2020-10-23 20:09:33,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:33" (1/1) ... [2020-10-23 20:09:33,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:09:33,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:09:33,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:09:33,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:09:33,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:33" (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 20:09:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:09:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:09:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:09:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:09:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:09:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:09:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:09:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:09:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:09:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:09:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:09:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:09:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:09:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:09:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:09:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:09:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:09:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:09:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:09:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:09:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:09:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:09:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:09:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:09:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:09:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:09:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:09:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:09:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:09:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:09:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:09:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:09:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:09:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:09:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:09:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:09:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:09:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:09:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:09:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:09:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:09:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:09:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:09:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:09:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:09:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:09:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:09:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:09:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:09:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:09:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:09:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:09:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:09:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:09:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:09:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:09:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:09:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:09:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:09:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:09:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:09:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:09:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:09:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:09:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:09:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:09:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:09:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:09:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:09:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:09:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:09:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:09:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:09:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:09:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:09:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:09:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:09:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:09:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:09:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:09:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:09:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:09:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:09:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:09:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:09:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:09:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:09:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:09:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:09:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:09:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:09:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:09:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:09:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:09:35,233 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:09:35,234 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:09:35,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:09:35 BoogieIcfgContainer [2020-10-23 20:09:35,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:09:35,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:09:35,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:09:35,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:09:35,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:09:32" (1/3) ... [2020-10-23 20:09:35,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2405ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:09:35, skipping insertion in model container [2020-10-23 20:09:35,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:33" (2/3) ... [2020-10-23 20:09:35,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2405ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:09:35, skipping insertion in model container [2020-10-23 20:09:35,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:09:35" (3/3) ... [2020-10-23 20:09:35,252 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-10-23 20:09:35,268 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:09:35,277 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:09:35,297 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:09:35,333 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:09:35,333 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:09:35,333 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:09:35,333 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:09:35,334 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:09:35,334 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:09:35,334 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:09:35,334 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:09:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-10-23 20:09:35,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:09:35,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:35,390 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 20:09:35,391 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 20:09:35,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:35,402 INFO L82 PathProgramCache]: Analyzing trace with hash -423889719, now seen corresponding path program 1 times [2020-10-23 20:09:35,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:35,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204979927] [2020-10-23 20:09:35,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:35,533 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:36,652 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:36,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:36,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:36,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:36,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:36,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:36,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:09:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:36,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:09:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:36,881 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 20:09:36,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204979927] [2020-10-23 20:09:36,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:36,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:09:36,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000325914] [2020-10-23 20:09:36,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:09:36,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:36,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:09:36,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:09:36,917 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 3 states. [2020-10-23 20:09:39,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:39,174 INFO L93 Difference]: Finished difference Result 458 states and 545 transitions. [2020-10-23 20:09:39,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:09:39,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:09:39,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:39,198 INFO L225 Difference]: With dead ends: 458 [2020-10-23 20:09:39,198 INFO L226 Difference]: Without dead ends: 288 [2020-10-23 20:09:39,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:09:39,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-10-23 20:09:39,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 246. [2020-10-23 20:09:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-23 20:09:39,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 265 transitions. [2020-10-23 20:09:39,418 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 265 transitions. Word has length 148 [2020-10-23 20:09:39,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:39,420 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 265 transitions. [2020-10-23 20:09:39,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:09:39,421 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 265 transitions. [2020-10-23 20:09:39,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:09:39,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:39,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:09:39,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:09:39,428 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 20:09:39,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:39,429 INFO L82 PathProgramCache]: Analyzing trace with hash -2146088137, now seen corresponding path program 1 times [2020-10-23 20:09:39,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:39,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851941340] [2020-10-23 20:09:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:39,437 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:40,115 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:40,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:40,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:40,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:40,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:40,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:40,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:09:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:40,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:09:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:40,244 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 20:09:40,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851941340] [2020-10-23 20:09:40,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:40,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:09:40,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560041777] [2020-10-23 20:09:40,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:09:40,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:40,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:09:40,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:09:40,250 INFO L87 Difference]: Start difference. First operand 246 states and 265 transitions. Second operand 4 states. [2020-10-23 20:09:41,320 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:42,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:42,567 INFO L93 Difference]: Finished difference Result 359 states and 402 transitions. [2020-10-23 20:09:42,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:09:42,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:09:42,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:42,574 INFO L225 Difference]: With dead ends: 359 [2020-10-23 20:09:42,575 INFO L226 Difference]: Without dead ends: 271 [2020-10-23 20:09:42,578 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 20:09:42,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-23 20:09:42,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 236. [2020-10-23 20:09:42,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-23 20:09:42,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 252 transitions. [2020-10-23 20:09:42,688 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 252 transitions. Word has length 149 [2020-10-23 20:09:42,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:42,689 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 252 transitions. [2020-10-23 20:09:42,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:09:42,690 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 252 transitions. [2020-10-23 20:09:42,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 20:09:42,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:42,694 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] [2020-10-23 20:09:42,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:09:42,694 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 20:09:42,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:42,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1261998348, now seen corresponding path program 1 times [2020-10-23 20:09:42,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:42,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405016359] [2020-10-23 20:09:42,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:42,702 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:43,307 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:43,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:43,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:43,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:43,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:43,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:43,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:09:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:43,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:09:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:43,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:09:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:43,607 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 20:09:43,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405016359] [2020-10-23 20:09:43,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:43,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:09:43,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475119696] [2020-10-23 20:09:43,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:09:43,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:43,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:09:43,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:09:43,616 INFO L87 Difference]: Start difference. First operand 236 states and 252 transitions. Second operand 10 states. [2020-10-23 20:09:44,532 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:09:45,051 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:09:45,517 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:09:45,955 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:46,403 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:46,841 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:48,213 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:51,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:51,003 INFO L93 Difference]: Finished difference Result 630 states and 731 transitions. [2020-10-23 20:09:51,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 20:09:51,012 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 20:09:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:51,021 INFO L225 Difference]: With dead ends: 630 [2020-10-23 20:09:51,021 INFO L226 Difference]: Without dead ends: 509 [2020-10-23 20:09:51,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 20:09:51,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-10-23 20:09:51,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 404. [2020-10-23 20:09:51,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-10-23 20:09:51,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 446 transitions. [2020-10-23 20:09:51,276 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 446 transitions. Word has length 162 [2020-10-23 20:09:51,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:51,277 INFO L481 AbstractCegarLoop]: Abstraction has 404 states and 446 transitions. [2020-10-23 20:09:51,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:09:51,277 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 446 transitions. [2020-10-23 20:09:51,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:09:51,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:51,280 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 20:09:51,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:09:51,281 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 20:09:51,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:51,282 INFO L82 PathProgramCache]: Analyzing trace with hash -861647770, now seen corresponding path program 1 times [2020-10-23 20:09:51,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:51,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [773405978] [2020-10-23 20:09:51,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:51,286 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:51,791 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:51,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:51,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:51,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:51,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:51,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:51,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:09:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:52,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:09:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:52,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:09:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:52,156 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 20:09:52,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [773405978] [2020-10-23 20:09:52,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:52,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:09:52,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878312965] [2020-10-23 20:09:52,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:09:52,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:52,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:09:52,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:09:52,161 INFO L87 Difference]: Start difference. First operand 404 states and 446 transitions. Second operand 14 states. [2020-10-23 20:09:52,970 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:09:53,531 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:09:53,989 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:09:54,424 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:54,849 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:55,260 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:56,199 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:57,774 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:58,228 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:58,829 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:59,331 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:09:59,758 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:00,184 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:10:00,605 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:10:01,037 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:01,444 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:01,971 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:02,533 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:10:02,985 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:03,480 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:05,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:05,996 INFO L93 Difference]: Finished difference Result 1343 states and 1684 transitions. [2020-10-23 20:10:05,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:10:05,998 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:10:05,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:06,009 INFO L225 Difference]: With dead ends: 1343 [2020-10-23 20:10:06,010 INFO L226 Difference]: Without dead ends: 1054 [2020-10-23 20:10:06,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:10:06,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2020-10-23 20:10:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 919. [2020-10-23 20:10:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-10-23 20:10:06,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1071 transitions. [2020-10-23 20:10:06,668 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1071 transitions. Word has length 167 [2020-10-23 20:10:06,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:06,671 INFO L481 AbstractCegarLoop]: Abstraction has 919 states and 1071 transitions. [2020-10-23 20:10:06,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:10:06,671 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1071 transitions. [2020-10-23 20:10:06,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 20:10:06,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:06,678 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 20:10:06,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:10:06,679 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 20:10:06,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:06,681 INFO L82 PathProgramCache]: Analyzing trace with hash -100959170, now seen corresponding path program 1 times [2020-10-23 20:10:06,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:06,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236227503] [2020-10-23 20:10:06,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:06,686 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,184 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:07,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:10:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:10:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:10:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 20:10:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:07,391 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 20:10:07,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236227503] [2020-10-23 20:10:07,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:07,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:10:07,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841385380] [2020-10-23 20:10:07,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:10:07,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:07,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:10:07,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:10:07,402 INFO L87 Difference]: Start difference. First operand 919 states and 1071 transitions. Second operand 6 states. [2020-10-23 20:10:08,166 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:11,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:11,259 INFO L93 Difference]: Finished difference Result 2188 states and 2690 transitions. [2020-10-23 20:10:11,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 20:10:11,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-10-23 20:10:11,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:11,279 INFO L225 Difference]: With dead ends: 2188 [2020-10-23 20:10:11,279 INFO L226 Difference]: Without dead ends: 1384 [2020-10-23 20:10:11,284 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 20:10:11,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2020-10-23 20:10:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1280. [2020-10-23 20:10:12,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1280 states. [2020-10-23 20:10:12,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1498 transitions. [2020-10-23 20:10:12,162 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1498 transitions. Word has length 172 [2020-10-23 20:10:12,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:12,162 INFO L481 AbstractCegarLoop]: Abstraction has 1280 states and 1498 transitions. [2020-10-23 20:10:12,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:10:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1498 transitions. [2020-10-23 20:10:12,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-23 20:10:12,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:12,170 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, 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] [2020-10-23 20:10:12,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:10:12,170 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 20:10:12,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:12,171 INFO L82 PathProgramCache]: Analyzing trace with hash 752113666, now seen corresponding path program 1 times [2020-10-23 20:10:12,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:12,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282380219] [2020-10-23 20:10:12,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:12,350 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:12,635 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:10:12,902 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:13,165 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:10:13,433 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:13,537 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-23 20:10:13,717 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:13,991 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:10:14,255 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:10:14,534 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:10:14,813 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:10:15,068 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:10:15,328 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:10:15,593 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:10:15,855 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:16,155 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:10:16,424 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:16,697 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:10:16,963 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:10:17,453 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:17,809 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:18,158 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:10:18,510 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:18,901 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:19,258 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:10:19,616 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:10:19,981 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:19,985 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:22,633 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:10:22,652 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:23,786 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:10:23,799 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:26,433 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:10:26,441 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:29,150 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:10:29,155 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:31,709 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:10:31,720 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:33,577 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:10:33,583 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:36,290 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:10:36,295 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:38,822 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:10:38,828 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:38,833 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:39,182 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:39,548 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:39,930 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:40,302 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:10:40,687 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:10:41,057 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:41,452 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:10:41,797 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:41,800 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:42,966 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:10:42,972 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:44,399 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:10:44,404 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:45,472 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:10:45,480 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:47,995 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:10:48,001 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:50,560 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:10:50,565 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:53,120 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:10:53,125 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:55,663 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:10:55,668 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:58,255 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:10:58,262 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:00,834 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:11:00,838 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:02,345 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:11:02,351 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:04,897 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:04,903 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:07,474 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:07,478 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:10,048 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:11:10,052 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:12,614 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:15,152 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:11:17,813 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:11:17,820 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:18,220 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:11:18,620 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:19,022 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:11:19,401 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:11:19,784 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:20,244 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:11:20,675 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:21,096 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:11:21,100 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:23,759 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:11:23,765 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:26,487 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:11:26,492 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:29,142 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:11:29,148 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:31,858 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:11:31,862 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:34,581 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:11:34,587 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:37,237 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:11:37,241 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:39,977 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:11:39,985 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:42,165 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:11:42,169 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:42,172 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:44,776 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:11:44,781 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:47,469 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:11:47,476 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:50,051 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:11:52,615 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:11:52,619 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:53,967 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:11:53,971 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:56,544 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:11:56,547 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:59,127 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:11:59,131 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:01,725 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:12:01,733 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:04,337 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:04,340 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:06,302 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:06,306 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:08,859 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:08,862 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:11,426 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:11,430 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:13,970 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:13,973 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:16,500 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:16,503 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:18,333 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:18,337 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:20,847 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:20,850 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:20,854 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:23,513 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:26,121 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:26,124 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:28,658 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:28,661 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:31,203 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:31,206 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:33,138 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:33,142 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:35,691 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:35,693 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:37,741 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:37,744 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:40,325 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:40,329 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:40,704 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:12:41,086 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:41,457 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:41,801 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:12:42,150 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:42,505 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:12:42,854 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:12:43,204 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:43,205 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:45,321 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:45,325 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:48,063 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:48,067 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:50,671 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:50,674 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:53,254 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:53,256 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:55,838 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:55,842 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:58,435 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:58,437 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:00,988 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:00,992 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:03,842 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:03,847 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:04,241 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:04,638 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:05,006 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:05,402 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:05,793 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:06,196 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:06,589 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:06,974 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:06,977 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:08,848 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:08,851 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:11,436 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:14,007 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:14,011 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:16,616 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:16,619 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:19,146 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:13:21,397 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:13:21,400 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:23,949 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:23,953 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:26,503 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:26,506 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:26,509 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:29,146 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:29,149 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:31,719 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:31,722 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:34,346 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:34,349 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:36,992 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:36,995 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:39,675 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:42,360 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:42,364 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:44,975 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:44,977 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:47,587 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:47,590 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:47,592 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:50,181 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:52,634 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:52,638 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:55,232 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:13:57,819 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:57,823 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:00,306 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:00,309 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:02,855 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:14:02,857 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:05,506 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:05,509 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:08,208 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:14:08,212 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:08,215 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:10,864 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:10,868 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:13,604 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:13,608 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:16,284 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:16,287 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:19,023 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:19,026 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:21,765 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:24,418 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:24,420 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:27,041 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:27,045 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:29,767 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:29,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:29,773 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:30,187 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:30,596 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:31,008 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:31,442 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:31,857 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:32,254 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:32,653 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:33,070 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:33,073 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:14:33,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:14:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:14:34,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:14:34,377 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:14:34,378 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:14:34,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:14:34,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:14:34 BoogieIcfgContainer [2020-10-23 20:14:34,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:14:34,427 INFO L168 Benchmark]: Toolchain (without parser) took 301677.91 ms. Allocated memory was 153.1 MB in the beginning and 714.1 MB in the end (delta: 561.0 MB). Free memory was 128.8 MB in the beginning and 252.8 MB in the end (delta: -124.0 MB). Peak memory consumption was 437.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:34,427 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 153.1 MB. Free memory is still 127.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:14:34,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.08 ms. Allocated memory is still 153.1 MB. Free memory was 128.2 MB in the beginning and 107.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:34,430 INFO L168 Benchmark]: Boogie Preprocessor took 142.90 ms. Allocated memory is still 153.1 MB. Free memory was 107.3 MB in the beginning and 134.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:34,431 INFO L168 Benchmark]: RCFGBuilder took 1637.16 ms. Allocated memory is still 153.1 MB. Free memory was 134.4 MB in the beginning and 91.0 MB in the end (delta: 43.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:34,437 INFO L168 Benchmark]: TraceAbstraction took 299183.59 ms. Allocated memory was 153.1 MB in the beginning and 714.1 MB in the end (delta: 561.0 MB). Free memory was 90.4 MB in the beginning and 252.8 MB in the end (delta: -162.4 MB). Peak memory consumption was 398.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:34,445 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 153.1 MB. Free memory is still 127.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 691.08 ms. Allocated memory is still 153.1 MB. Free memory was 128.2 MB in the beginning and 107.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 142.90 ms. Allocated memory is still 153.1 MB. Free memory was 107.3 MB in the beginning and 134.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1637.16 ms. Allocated memory is still 153.1 MB. Free memory was 134.4 MB in the beginning and 91.0 MB in the end (delta: 43.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 299183.59 ms. Allocated memory was 153.1 MB in the beginning and 714.1 MB in the end (delta: 561.0 MB). Free memory was 90.4 MB in the beginning and 252.8 MB in the end (delta: -162.4 MB). Peak memory consumption was 398.6 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: [L125] int pumpRunning = 0; [L126] int systemActive = 1; [L301] int cleanupTimeShifts = 4; [L613] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; [L377] int retValue_acc ; [L378] int tmp ; [L382] FCALL select_helpers() [L383] FCALL select_features() [L384] CALL, EXPR valid_product() [L426] int retValue_acc ; [L429] retValue_acc = 1 [L430] return (retValue_acc); [L384] RET, EXPR valid_product() [L384] tmp = valid_product() [L386] COND TRUE \read(tmp) [L388] FCALL setup() [L389] CALL runTest() [L368] CALL test() [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 [L58] COND TRUE 1 [L60] COND TRUE splverifierCounter < 4 [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) [L70] CALL waterRise() [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 [L70] RET waterRise() [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND FALSE !(\read(tmp___2)) [L94] tmp___1 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___1) [L98] CALL stopSystem() [L281] COND FALSE !(\read(pumpRunning)) [L288] systemActive = 0 [L98] RET stopSystem() [L105] CALL timeShift() [L133] COND FALSE !(\read(pumpRunning)) [L140] COND FALSE !(\read(systemActive)) [L148] CALL __utac_acc__Specification4_spec__1() [L906] int tmp ; [L907] int tmp___0 ; [L911] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L911] RET, EXPR getWaterLevel() [L911] tmp = getWaterLevel() [L913] COND FALSE !(tmp == 0) [L148] RET __utac_acc__Specification4_spec__1() [L105] RET timeShift() [L58] COND TRUE 1 [L60] COND TRUE splverifierCounter < 4 [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) [L70] CALL waterRise() [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 [L70] RET waterRise() [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND FALSE !(\read(tmp___2)) [L94] tmp___1 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___1)) [L105] CALL timeShift() [L133] COND FALSE !(\read(pumpRunning)) [L140] COND FALSE !(\read(systemActive)) [L148] CALL __utac_acc__Specification4_spec__1() [L906] int tmp ; [L907] int tmp___0 ; [L911] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L911] RET, EXPR getWaterLevel() [L911] tmp = getWaterLevel() [L913] COND TRUE tmp == 0 [L915] CALL, EXPR isPumpRunning() [L214] int retValue_acc ; [L217] retValue_acc = pumpRunning [L218] return (retValue_acc); [L915] RET, EXPR isPumpRunning() [L915] tmp___0 = isPumpRunning() [L917] COND TRUE \read(tmp___0) [L919] CALL __automaton_fail() [L439] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product36.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 629 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 299.0s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 29.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1177 SDtfs, 2026 SDslu, 2285 SDs, 0 SdLazy, 4421 SolverSat, 696 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1280occurred 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, 421 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...