/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:25:18,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:25:18,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:25:18,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:25:18,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:25:18,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:25:18,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:25:18,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:25:18,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:25:18,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:25:18,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:25:18,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:25:18,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:25:18,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:25:18,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:25:18,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:25:18,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:25:18,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:25:18,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:25:18,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:25:18,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:25:18,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:25:18,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:25:18,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:25:18,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:25:18,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:25:18,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:25:18,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:25:18,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:25:18,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:25:18,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:25:18,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:25:18,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:25:18,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:25:18,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:25:18,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:25:18,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:25:18,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:25:18,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:25:18,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:25:18,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:25:18,698 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:25:18,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:25:18,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:25:18,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:25:18,729 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:25:18,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:25:18,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:25:18,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:25:18,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:25:18,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:25:18,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:25:18,730 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:25:18,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:25:18,731 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:25:18,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:25:18,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:25:18,734 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:25:18,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:25:18,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:25:18,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:25:18,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:25:18,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:25:18,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:25:18,735 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:25:18,736 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:25:19,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:25:19,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:25:19,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:25:19,265 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:25:19,266 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:25:19,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2021-02-24 04:25:19,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a70824108/0b8527c0d5eb4fccbcb2b57aa41343aa/FLAG1bb59de85 [2021-02-24 04:25:20,284 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:25:20,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i [2021-02-24 04:25:20,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a70824108/0b8527c0d5eb4fccbcb2b57aa41343aa/FLAG1bb59de85 [2021-02-24 04:25:20,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a70824108/0b8527c0d5eb4fccbcb2b57aa41343aa [2021-02-24 04:25:20,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:25:20,490 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:25:20,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:25:20,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:25:20,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:25:20,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:25:20" (1/1) ... [2021-02-24 04:25:20,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e6ea11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:20, skipping insertion in model container [2021-02-24 04:25:20,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:25:20" (1/1) ... [2021-02-24 04:25:20,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:25:20,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:25:20,920 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22080,22093] [2021-02-24 04:25:20,934 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22353,22366] [2021-02-24 04:25:20,941 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22587,22600] [2021-02-24 04:25:20,943 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22657,22670] [2021-02-24 04:25:20,950 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22924,22937] [2021-02-24 04:25:20,952 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23032,23045] [2021-02-24 04:25:20,961 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23263,23276] [2021-02-24 04:25:20,963 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23343,23356] [2021-02-24 04:25:20,966 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23422,23435] [2021-02-24 04:25:20,968 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23512,23525] [2021-02-24 04:25:20,974 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23690,23703] [2021-02-24 04:25:20,976 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23768,23781] [2021-02-24 04:25:20,978 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23845,23858] [2021-02-24 04:25:20,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:25:21,008 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:25:21,081 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22080,22093] [2021-02-24 04:25:21,091 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22353,22366] [2021-02-24 04:25:21,097 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22587,22600] [2021-02-24 04:25:21,098 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22657,22670] [2021-02-24 04:25:21,101 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22924,22937] [2021-02-24 04:25:21,103 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23032,23045] [2021-02-24 04:25:21,105 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23263,23276] [2021-02-24 04:25:21,106 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23343,23356] [2021-02-24 04:25:21,107 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23422,23435] [2021-02-24 04:25:21,108 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23512,23525] [2021-02-24 04:25:21,110 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23690,23703] [2021-02-24 04:25:21,111 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23768,23781] [2021-02-24 04:25:21,112 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23845,23858] [2021-02-24 04:25:21,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:25:21,174 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:25:21,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:21 WrapperNode [2021-02-24 04:25:21,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:25:21,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:25:21,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:25:21,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:25:21,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:21" (1/1) ... [2021-02-24 04:25:21,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:21" (1/1) ... [2021-02-24 04:25:21,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:21" (1/1) ... [2021-02-24 04:25:21,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:21" (1/1) ... [2021-02-24 04:25:21,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:21" (1/1) ... [2021-02-24 04:25:21,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:21" (1/1) ... [2021-02-24 04:25:21,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:21" (1/1) ... [2021-02-24 04:25:21,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:25:21,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:25:21,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:25:21,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:25:21,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:21" (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 [2021-02-24 04:25:21,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:25:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:25:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:25:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:25:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-24 04:25:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-24 04:25:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-24 04:25:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-24 04:25:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-24 04:25:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-24 04:25:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-24 04:25:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-24 04:25:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-24 04:25:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-24 04:25:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-24 04:25:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-24 04:25:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-24 04:25:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-24 04:25:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-24 04:25:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-24 04:25:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-24 04:25:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-24 04:25:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-24 04:25:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-24 04:25:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-24 04:25:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-24 04:25:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-24 04:25:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-24 04:25:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-24 04:25:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-24 04:25:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-24 04:25:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-24 04:25:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-24 04:25:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-24 04:25:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-24 04:25:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-24 04:25:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-24 04:25:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-24 04:25:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-24 04:25:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-24 04:25:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-24 04:25:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-24 04:25:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-24 04:25:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-24 04:25:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-24 04:25:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-24 04:25:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-24 04:25:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-24 04:25:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-24 04:25:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-24 04:25:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-24 04:25:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-24 04:25:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-24 04:25:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-24 04:25:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 04:25:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-24 04:25:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-24 04:25:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 04:25:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-24 04:25:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-24 04:25:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-24 04:25:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-24 04:25:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-24 04:25:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:25:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-24 04:25:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-24 04:25:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-24 04:25:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:25:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-24 04:25:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-24 04:25:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-24 04:25:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-24 04:25:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-24 04:25:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-24 04:25:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-24 04:25:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-24 04:25:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-24 04:25:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-24 04:25:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-24 04:25:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-24 04:25:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-24 04:25:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-24 04:25:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-24 04:25:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-24 04:25:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-24 04:25:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-24 04:25:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-24 04:25:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-24 04:25:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-24 04:25:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-24 04:25:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-24 04:25:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-24 04:25:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-24 04:25:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-24 04:25:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-24 04:25:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-24 04:25:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-24 04:25:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-24 04:25:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-24 04:25:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-24 04:25:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-24 04:25:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-24 04:25:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-24 04:25:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-24 04:25:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-24 04:25:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-24 04:25:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-24 04:25:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:25:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:25:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 04:25:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 04:25:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:25:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:25:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:25:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 04:25:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 04:25:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 04:25:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:25:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:25:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:25:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:25:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:25:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:25:22,153 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:25:22,154 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-02-24 04:25:22,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:25:22 BoogieIcfgContainer [2021-02-24 04:25:22,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:25:22,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:25:22,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:25:22,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:25:22,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:25:20" (1/3) ... [2021-02-24 04:25:22,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1349f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:25:22, skipping insertion in model container [2021-02-24 04:25:22,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:21" (2/3) ... [2021-02-24 04:25:22,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1349f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:25:22, skipping insertion in model container [2021-02-24 04:25:22,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:25:22" (3/3) ... [2021-02-24 04:25:22,167 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2021-02-24 04:25:22,175 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:25:22,181 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2021-02-24 04:25:22,203 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-02-24 04:25:22,228 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:25:22,228 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:25:22,228 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:25:22,228 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:25:22,229 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:25:22,229 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:25:22,229 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:25:22,229 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:25:22,252 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states. [2021-02-24 04:25:22,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-24 04:25:22,261 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:22,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:22,263 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:22,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:22,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1375890334, now seen corresponding path program 1 times [2021-02-24 04:25:22,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:22,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805149952] [2021-02-24 04:25:22,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:22,385 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:22,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:22,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:22,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:22,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:22,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:22,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:22,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:22,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:22,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:22,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:22,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:22,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:22,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805149952] [2021-02-24 04:25:22,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:22,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 04:25:22,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479868488] [2021-02-24 04:25:22,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 04:25:22,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:22,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 04:25:22,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:25:22,734 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 5 states. [2021-02-24 04:25:23,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:23,262 INFO L93 Difference]: Finished difference Result 376 states and 492 transitions. [2021-02-24 04:25:23,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:25:23,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-02-24 04:25:23,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:23,277 INFO L225 Difference]: With dead ends: 376 [2021-02-24 04:25:23,277 INFO L226 Difference]: Without dead ends: 198 [2021-02-24 04:25:23,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:25:23,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-02-24 04:25:23,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 168. [2021-02-24 04:25:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2021-02-24 04:25:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 177 transitions. [2021-02-24 04:25:23,356 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 177 transitions. Word has length 17 [2021-02-24 04:25:23,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:23,356 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 177 transitions. [2021-02-24 04:25:23,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 04:25:23,357 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 177 transitions. [2021-02-24 04:25:23,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-24 04:25:23,358 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:23,358 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] [2021-02-24 04:25:23,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:25:23,359 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:23,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:23,360 INFO L82 PathProgramCache]: Analyzing trace with hash -590767728, now seen corresponding path program 1 times [2021-02-24 04:25:23,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:23,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345803926] [2021-02-24 04:25:23,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:23,366 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:23,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:23,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:23,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:23,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:23,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:23,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:23,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:23,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:23,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:23,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:23,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345803926] [2021-02-24 04:25:23,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:23,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:25:23,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113230101] [2021-02-24 04:25:23,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:25:23,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:23,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:25:23,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:23,530 INFO L87 Difference]: Start difference. First operand 168 states and 177 transitions. Second operand 4 states. [2021-02-24 04:25:23,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:23,879 INFO L93 Difference]: Finished difference Result 174 states and 183 transitions. [2021-02-24 04:25:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 04:25:23,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2021-02-24 04:25:23,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:23,885 INFO L225 Difference]: With dead ends: 174 [2021-02-24 04:25:23,885 INFO L226 Difference]: Without dead ends: 169 [2021-02-24 04:25:23,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:23,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-02-24 04:25:23,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-02-24 04:25:23,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2021-02-24 04:25:23,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 178 transitions. [2021-02-24 04:25:23,935 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 178 transitions. Word has length 29 [2021-02-24 04:25:23,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:23,936 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 178 transitions. [2021-02-24 04:25:23,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:25:23,936 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 178 transitions. [2021-02-24 04:25:23,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-24 04:25:23,941 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:23,941 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] [2021-02-24 04:25:23,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:25:23,946 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:23,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:23,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1889053171, now seen corresponding path program 1 times [2021-02-24 04:25:23,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:23,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801391178] [2021-02-24 04:25:23,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:23,958 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:23,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:24,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:24,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:25:24,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:24,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:24,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:24,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:24,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:24,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:24,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:24,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801391178] [2021-02-24 04:25:24,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:24,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 04:25:24,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586455129] [2021-02-24 04:25:24,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 04:25:24,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:24,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 04:25:24,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:25:24,104 INFO L87 Difference]: Start difference. First operand 169 states and 178 transitions. Second operand 8 states. [2021-02-24 04:25:24,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:24,756 INFO L93 Difference]: Finished difference Result 260 states and 275 transitions. [2021-02-24 04:25:24,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 04:25:24,759 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2021-02-24 04:25:24,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:24,763 INFO L225 Difference]: With dead ends: 260 [2021-02-24 04:25:24,764 INFO L226 Difference]: Without dead ends: 255 [2021-02-24 04:25:24,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-02-24 04:25:24,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-02-24 04:25:24,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 163. [2021-02-24 04:25:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2021-02-24 04:25:24,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 172 transitions. [2021-02-24 04:25:24,818 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 172 transitions. Word has length 31 [2021-02-24 04:25:24,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:24,818 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 172 transitions. [2021-02-24 04:25:24,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 04:25:24,818 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 172 transitions. [2021-02-24 04:25:24,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-24 04:25:24,822 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:24,822 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] [2021-02-24 04:25:24,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:25:24,823 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:24,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:24,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1151103869, now seen corresponding path program 1 times [2021-02-24 04:25:24,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:24,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356927075] [2021-02-24 04:25:24,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:24,829 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:24,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:24,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:24,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:24,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-24 04:25:24,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:24,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:24,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:24,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:24,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356927075] [2021-02-24 04:25:24,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:24,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:25:24,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865732107] [2021-02-24 04:25:24,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:25:24,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:24,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:25:24,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:25:24,981 INFO L87 Difference]: Start difference. First operand 163 states and 172 transitions. Second operand 6 states. [2021-02-24 04:25:25,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:25,454 INFO L93 Difference]: Finished difference Result 381 states and 403 transitions. [2021-02-24 04:25:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:25:25,454 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2021-02-24 04:25:25,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:25,457 INFO L225 Difference]: With dead ends: 381 [2021-02-24 04:25:25,458 INFO L226 Difference]: Without dead ends: 253 [2021-02-24 04:25:25,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:25:25,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-02-24 04:25:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 166. [2021-02-24 04:25:25,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2021-02-24 04:25:25,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 175 transitions. [2021-02-24 04:25:25,512 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 175 transitions. Word has length 37 [2021-02-24 04:25:25,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:25,513 INFO L480 AbstractCegarLoop]: Abstraction has 166 states and 175 transitions. [2021-02-24 04:25:25,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:25:25,513 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 175 transitions. [2021-02-24 04:25:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-02-24 04:25:25,518 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:25,518 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] [2021-02-24 04:25:25,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:25:25,519 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:25,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:25,520 INFO L82 PathProgramCache]: Analyzing trace with hash 670006272, now seen corresponding path program 1 times [2021-02-24 04:25:25,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:25,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033070748] [2021-02-24 04:25:25,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:25,527 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:25,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:25,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:25,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:25,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:25,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:25,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:25,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:25,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:25,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:25,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:25,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:25,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:25,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:25,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033070748] [2021-02-24 04:25:25,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:25,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:25:25,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783744678] [2021-02-24 04:25:25,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:25:25,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:25,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:25:25,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:25:25,671 INFO L87 Difference]: Start difference. First operand 166 states and 175 transitions. Second operand 6 states. [2021-02-24 04:25:26,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:26,109 INFO L93 Difference]: Finished difference Result 274 states and 289 transitions. [2021-02-24 04:25:26,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 04:25:26,109 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2021-02-24 04:25:26,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:26,111 INFO L225 Difference]: With dead ends: 274 [2021-02-24 04:25:26,111 INFO L226 Difference]: Without dead ends: 242 [2021-02-24 04:25:26,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:25:26,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-02-24 04:25:26,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 165. [2021-02-24 04:25:26,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2021-02-24 04:25:26,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 174 transitions. [2021-02-24 04:25:26,134 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 174 transitions. Word has length 39 [2021-02-24 04:25:26,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:26,135 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 174 transitions. [2021-02-24 04:25:26,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:25:26,135 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 174 transitions. [2021-02-24 04:25:26,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-24 04:25:26,136 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:26,137 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] [2021-02-24 04:25:26,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 04:25:26,137 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:26,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:26,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1831766512, now seen corresponding path program 1 times [2021-02-24 04:25:26,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:26,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758467700] [2021-02-24 04:25:26,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:26,142 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:26,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:26,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:26,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:26,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:25:26,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:26,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:25:26,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:26,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:25:26,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:26,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:26,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:26,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:25:26,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:26,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:25:26,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:26,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:25:26,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:26,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:26,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:26,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:26,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:26,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:26,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:26,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:26,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:26,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:26,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758467700] [2021-02-24 04:25:26,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:26,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 04:25:26,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723150122] [2021-02-24 04:25:26,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 04:25:26,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:26,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 04:25:26,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:25:26,354 INFO L87 Difference]: Start difference. First operand 165 states and 174 transitions. Second operand 12 states. [2021-02-24 04:25:27,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:27,284 INFO L93 Difference]: Finished difference Result 290 states and 306 transitions. [2021-02-24 04:25:27,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 04:25:27,285 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2021-02-24 04:25:27,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:27,287 INFO L225 Difference]: With dead ends: 290 [2021-02-24 04:25:27,288 INFO L226 Difference]: Without dead ends: 286 [2021-02-24 04:25:27,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2021-02-24 04:25:27,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-02-24 04:25:27,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 180. [2021-02-24 04:25:27,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2021-02-24 04:25:27,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 190 transitions. [2021-02-24 04:25:27,319 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 190 transitions. Word has length 46 [2021-02-24 04:25:27,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:27,320 INFO L480 AbstractCegarLoop]: Abstraction has 180 states and 190 transitions. [2021-02-24 04:25:27,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 04:25:27,320 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 190 transitions. [2021-02-24 04:25:27,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-24 04:25:27,321 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:27,321 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] [2021-02-24 04:25:27,322 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 04:25:27,322 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:27,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:27,323 INFO L82 PathProgramCache]: Analyzing trace with hash 2040854509, now seen corresponding path program 1 times [2021-02-24 04:25:27,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:27,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1781275773] [2021-02-24 04:25:27,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:27,327 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:27,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:27,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:27,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:27,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:25:27,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:27,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:27,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:27,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:27,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:27,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:27,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1781275773] [2021-02-24 04:25:27,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:27,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:25:27,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531932626] [2021-02-24 04:25:27,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:25:27,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:27,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:25:27,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:27,399 INFO L87 Difference]: Start difference. First operand 180 states and 190 transitions. Second operand 4 states. [2021-02-24 04:25:27,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:27,732 INFO L93 Difference]: Finished difference Result 286 states and 305 transitions. [2021-02-24 04:25:27,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 04:25:27,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2021-02-24 04:25:27,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:27,734 INFO L225 Difference]: With dead ends: 286 [2021-02-24 04:25:27,735 INFO L226 Difference]: Without dead ends: 219 [2021-02-24 04:25:27,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:27,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-02-24 04:25:27,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 183. [2021-02-24 04:25:27,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2021-02-24 04:25:27,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 194 transitions. [2021-02-24 04:25:27,764 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 194 transitions. Word has length 47 [2021-02-24 04:25:27,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:27,764 INFO L480 AbstractCegarLoop]: Abstraction has 183 states and 194 transitions. [2021-02-24 04:25:27,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:25:27,764 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 194 transitions. [2021-02-24 04:25:27,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-02-24 04:25:27,766 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:27,766 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] [2021-02-24 04:25:27,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 04:25:27,766 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:27,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:27,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1539352912, now seen corresponding path program 1 times [2021-02-24 04:25:27,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:27,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930667066] [2021-02-24 04:25:27,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:27,771 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:27,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:27,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:27,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:27,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:27,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:27,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:27,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:27,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:27,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:27,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:27,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930667066] [2021-02-24 04:25:27,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:27,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:25:27,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191813241] [2021-02-24 04:25:27,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:25:27,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:27,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:25:27,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:27,842 INFO L87 Difference]: Start difference. First operand 183 states and 194 transitions. Second operand 4 states. [2021-02-24 04:25:28,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:28,134 INFO L93 Difference]: Finished difference Result 183 states and 194 transitions. [2021-02-24 04:25:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 04:25:28,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2021-02-24 04:25:28,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:28,137 INFO L225 Difference]: With dead ends: 183 [2021-02-24 04:25:28,137 INFO L226 Difference]: Without dead ends: 181 [2021-02-24 04:25:28,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:28,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-02-24 04:25:28,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-02-24 04:25:28,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2021-02-24 04:25:28,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 192 transitions. [2021-02-24 04:25:28,166 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 192 transitions. Word has length 49 [2021-02-24 04:25:28,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:28,167 INFO L480 AbstractCegarLoop]: Abstraction has 181 states and 192 transitions. [2021-02-24 04:25:28,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:25:28,167 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 192 transitions. [2021-02-24 04:25:28,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-24 04:25:28,168 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:28,169 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] [2021-02-24 04:25:28,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 04:25:28,169 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:28,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:28,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1003431575, now seen corresponding path program 1 times [2021-02-24 04:25:28,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:28,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419514030] [2021-02-24 04:25:28,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:28,174 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:28,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:28,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:28,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:25:28,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:28,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:28,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:28,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:28,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:28,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:28,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:28,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:28,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419514030] [2021-02-24 04:25:28,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:28,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 04:25:28,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833771958] [2021-02-24 04:25:28,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 04:25:28,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:28,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 04:25:28,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 04:25:28,386 INFO L87 Difference]: Start difference. First operand 181 states and 192 transitions. Second operand 9 states. [2021-02-24 04:25:29,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:29,087 INFO L93 Difference]: Finished difference Result 372 states and 397 transitions. [2021-02-24 04:25:29,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 04:25:29,087 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2021-02-24 04:25:29,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:29,089 INFO L225 Difference]: With dead ends: 372 [2021-02-24 04:25:29,089 INFO L226 Difference]: Without dead ends: 304 [2021-02-24 04:25:29,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:25:29,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-02-24 04:25:29,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 200. [2021-02-24 04:25:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-24 04:25:29,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 212 transitions. [2021-02-24 04:25:29,123 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 212 transitions. Word has length 53 [2021-02-24 04:25:29,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:29,124 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 212 transitions. [2021-02-24 04:25:29,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 04:25:29,124 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 212 transitions. [2021-02-24 04:25:29,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-24 04:25:29,125 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:29,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:29,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 04:25:29,126 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:29,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:29,127 INFO L82 PathProgramCache]: Analyzing trace with hash 46675779, now seen corresponding path program 1 times [2021-02-24 04:25:29,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:29,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928257446] [2021-02-24 04:25:29,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:29,166 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:29,188 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:29,197 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:29,202 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:29,219 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-24 04:25:29,237 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-24 04:25:29,243 WARN L141 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size [2021-02-24 04:25:29,248 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:29,253 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:29,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:25:29,266 WARN L147 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-02-24 04:25:29,268 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:29,272 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:29,276 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:29,281 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:29,291 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-24 04:25:29,295 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-24 04:25:29,300 WARN L141 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size [2021-02-24 04:25:29,302 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:29,304 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:29,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:25:29,310 WARN L147 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size 66 [2021-02-24 04:25:29,312 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:29,316 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:29,319 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:29,322 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:29,332 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-24 04:25:29,339 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-24 04:25:29,347 WARN L141 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size [2021-02-24 04:25:29,350 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:29,355 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:29,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:25:29,366 WARN L147 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size 66 [2021-02-24 04:25:29,370 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:29,375 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:29,378 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:29,385 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:29,394 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-24 04:25:29,397 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-24 04:25:29,401 WARN L141 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size [2021-02-24 04:25:29,420 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:29,422 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:29,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:25:29,430 WARN L147 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-02-24 04:25:29,431 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:25:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:29,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:29,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:29,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:29,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:29,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:29,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:29,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:25:29,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:25:29,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:25:29,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:29,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:25:29,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:25:29,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:29,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:25:29,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:29,687 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.5 percent of original size [2021-02-24 04:25:29,688 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.5 percent of original size 37 [2021-02-24 04:25:29,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:29,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:25:29,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:29,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:25:29,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-24 04:25:29,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:29,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:25:29,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-24 04:25:29,828 WARN L141 QuantifierPusher]: treesize reduction 15, result has 6.3 percent of original size [2021-02-24 04:25:29,828 WARN L147 QuantifierPusher]: treesize reduction 15, result has 6.3 percent of original size 1 [2021-02-24 04:25:29,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928257446] [2021-02-24 04:25:29,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:29,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 04:25:29,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844600809] [2021-02-24 04:25:29,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 04:25:29,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:29,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 04:25:29,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:25:29,833 INFO L87 Difference]: Start difference. First operand 200 states and 212 transitions. Second operand 12 states. [2021-02-24 04:25:30,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:30,571 INFO L93 Difference]: Finished difference Result 214 states and 227 transitions. [2021-02-24 04:25:30,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 04:25:30,572 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 58 [2021-02-24 04:25:30,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:30,573 INFO L225 Difference]: With dead ends: 214 [2021-02-24 04:25:30,574 INFO L226 Difference]: Without dead ends: 210 [2021-02-24 04:25:30,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-02-24 04:25:30,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-02-24 04:25:30,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 194. [2021-02-24 04:25:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-02-24 04:25:30,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 206 transitions. [2021-02-24 04:25:30,622 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 206 transitions. Word has length 58 [2021-02-24 04:25:30,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:30,622 INFO L480 AbstractCegarLoop]: Abstraction has 194 states and 206 transitions. [2021-02-24 04:25:30,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 04:25:30,622 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 206 transitions. [2021-02-24 04:25:30,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-24 04:25:30,623 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:30,624 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] [2021-02-24 04:25:30,624 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-24 04:25:30,624 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:30,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:30,625 INFO L82 PathProgramCache]: Analyzing trace with hash -520604991, now seen corresponding path program 1 times [2021-02-24 04:25:30,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:30,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12492152] [2021-02-24 04:25:30,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:30,630 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:30,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:30,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:30,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:30,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:25:30,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:25:30,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:25:30,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:25:30,922 WARN L141 QuantifierPusher]: treesize reduction 11, result has 76.1 percent of original size [2021-02-24 04:25:30,924 WARN L147 QuantifierPusher]: treesize reduction 11, result has 76.1 percent of original size 35 [2021-02-24 04:25:30,969 WARN L141 QuantifierPusher]: treesize reduction 10, result has 84.4 percent of original size [2021-02-24 04:25:30,971 WARN L147 QuantifierPusher]: treesize reduction 10, result has 84.4 percent of original size 54 [2021-02-24 04:25:31,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:31,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:25:31,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:31,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:25:31,056 WARN L141 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-02-24 04:25:31,057 WARN L147 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size 27 [2021-02-24 04:25:31,088 WARN L141 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-02-24 04:25:31,089 WARN L147 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size 22 [2021-02-24 04:25:31,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:31,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:31,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:31,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:31,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:31,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:31,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:31,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:31,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12492152] [2021-02-24 04:25:31,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:31,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-24 04:25:31,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276562069] [2021-02-24 04:25:31,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-24 04:25:31,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:31,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-24 04:25:31,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:25:31,225 INFO L87 Difference]: Start difference. First operand 194 states and 206 transitions. Second operand 16 states. [2021-02-24 04:25:34,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:34,592 INFO L93 Difference]: Finished difference Result 629 states and 668 transitions. [2021-02-24 04:25:34,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-02-24 04:25:34,593 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 58 [2021-02-24 04:25:34,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:34,598 INFO L225 Difference]: With dead ends: 629 [2021-02-24 04:25:34,599 INFO L226 Difference]: Without dead ends: 626 [2021-02-24 04:25:34,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=470, Invalid=1980, Unknown=0, NotChecked=0, Total=2450 [2021-02-24 04:25:34,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2021-02-24 04:25:34,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 211. [2021-02-24 04:25:34,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2021-02-24 04:25:34,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 224 transitions. [2021-02-24 04:25:34,656 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 224 transitions. Word has length 58 [2021-02-24 04:25:34,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:34,656 INFO L480 AbstractCegarLoop]: Abstraction has 211 states and 224 transitions. [2021-02-24 04:25:34,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-24 04:25:34,656 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 224 transitions. [2021-02-24 04:25:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-24 04:25:34,657 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:34,657 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] [2021-02-24 04:25:34,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-24 04:25:34,658 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:34,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:34,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1730207930, now seen corresponding path program 1 times [2021-02-24 04:25:34,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:34,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236838463] [2021-02-24 04:25:34,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:34,663 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:34,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:34,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:34,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:34,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:34,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:34,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:34,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:34,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:34,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:34,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:34,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236838463] [2021-02-24 04:25:34,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:34,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:25:34,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922117760] [2021-02-24 04:25:34,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:25:34,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:34,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:25:34,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:34,726 INFO L87 Difference]: Start difference. First operand 211 states and 224 transitions. Second operand 4 states. [2021-02-24 04:25:35,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:35,037 INFO L93 Difference]: Finished difference Result 217 states and 230 transitions. [2021-02-24 04:25:35,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 04:25:35,038 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2021-02-24 04:25:35,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:35,039 INFO L225 Difference]: With dead ends: 217 [2021-02-24 04:25:35,040 INFO L226 Difference]: Without dead ends: 212 [2021-02-24 04:25:35,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:35,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-02-24 04:25:35,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2021-02-24 04:25:35,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2021-02-24 04:25:35,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 225 transitions. [2021-02-24 04:25:35,089 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 225 transitions. Word has length 60 [2021-02-24 04:25:35,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:35,089 INFO L480 AbstractCegarLoop]: Abstraction has 212 states and 225 transitions. [2021-02-24 04:25:35,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:25:35,089 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 225 transitions. [2021-02-24 04:25:35,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-24 04:25:35,090 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:35,091 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] [2021-02-24 04:25:35,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-24 04:25:35,091 INFO L428 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:35,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:35,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1932580842, now seen corresponding path program 1 times [2021-02-24 04:25:35,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:35,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1781125712] [2021-02-24 04:25:35,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:35,098 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:35,102 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:35,104 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:35,107 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:35,115 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-24 04:25:35,119 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-24 04:25:35,123 WARN L141 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size [2021-02-24 04:25:35,124 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:35,126 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:25:35,152 WARN L147 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-02-24 04:25:35,153 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:35,157 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:35,158 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:35,162 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:35,171 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-24 04:25:35,173 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-24 04:25:35,177 WARN L141 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size [2021-02-24 04:25:35,178 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:35,179 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:25:35,185 WARN L147 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size 66 [2021-02-24 04:25:35,187 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:35,190 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:35,193 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:35,196 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:35,207 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-24 04:25:35,209 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-24 04:25:35,212 WARN L141 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size [2021-02-24 04:25:35,213 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:35,215 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:25:35,220 WARN L147 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size 66 [2021-02-24 04:25:35,222 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:35,225 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:35,228 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:35,231 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:35,240 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-24 04:25:35,242 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-24 04:25:35,245 WARN L141 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size [2021-02-24 04:25:35,247 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:35,251 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:25:35,256 WARN L147 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-02-24 04:25:35,257 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:25:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:35,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:35,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:35,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:35,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:35,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:35,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:35,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:35,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:35,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:35,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:35,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:35,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:35,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:25:35,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:25:35,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:25:35,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:25:35,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:25:35,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:25:35,399 WARN L141 QuantifierPusher]: treesize reduction 10, result has 28.6 percent of original size [2021-02-24 04:25:35,400 WARN L147 QuantifierPusher]: treesize reduction 10, result has 28.6 percent of original size 4 [2021-02-24 04:25:35,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:25:35,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 04:25:35,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:25:35,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:25:35,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:25:35,530 WARN L141 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size [2021-02-24 04:25:35,531 WARN L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-02-24 04:25:35,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:25:35,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 04:25:35,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:35,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:25:35,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:35,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-24 04:25:35,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:35,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-24 04:25:35,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:35,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-24 04:25:35,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:35,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-02-24 04:25:35,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:35,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-02-24 04:25:35,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:35,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-02-24 04:25:35,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:35,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:35,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:35,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-02-24 04:25:36,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:36,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:36,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:36,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:36,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-02-24 04:25:36,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:36,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:36,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:36,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:36,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-02-24 04:25:36,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:36,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:36,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:36,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:36,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-02-24 04:25:36,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:36,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:36,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:36,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:36,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-02-24 04:25:36,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:36,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:36,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:36,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:36,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-02-24 04:25:36,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1781125712] [2021-02-24 04:25:36,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:36,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-02-24 04:25:36,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051137815] [2021-02-24 04:25:36,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-24 04:25:36,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:36,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-24 04:25:36,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2021-02-24 04:25:36,417 INFO L87 Difference]: Start difference. First operand 212 states and 225 transitions. Second operand 23 states. [2021-02-24 04:25:38,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:38,488 INFO L93 Difference]: Finished difference Result 312 states and 331 transitions. [2021-02-24 04:25:38,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-24 04:25:38,489 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 62 [2021-02-24 04:25:38,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:38,492 INFO L225 Difference]: With dead ends: 312 [2021-02-24 04:25:38,492 INFO L226 Difference]: Without dead ends: 309 [2021-02-24 04:25:38,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=256, Invalid=1466, Unknown=0, NotChecked=0, Total=1722 [2021-02-24 04:25:38,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-02-24 04:25:38,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 232. [2021-02-24 04:25:38,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2021-02-24 04:25:38,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 248 transitions. [2021-02-24 04:25:38,550 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 248 transitions. Word has length 62 [2021-02-24 04:25:38,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:38,551 INFO L480 AbstractCegarLoop]: Abstraction has 232 states and 248 transitions. [2021-02-24 04:25:38,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-02-24 04:25:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 248 transitions. [2021-02-24 04:25:38,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-24 04:25:38,552 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:38,552 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] [2021-02-24 04:25:38,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-24 04:25:38,553 INFO L428 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:38,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:38,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1674423261, now seen corresponding path program 1 times [2021-02-24 04:25:38,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:38,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623076039] [2021-02-24 04:25:38,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:38,557 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:38,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:38,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:38,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:38,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:38,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:38,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:25:38,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:38,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:38,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:38,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:38,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:38,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:38,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:38,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:38,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:38,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:38,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:38,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623076039] [2021-02-24 04:25:38,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:38,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 04:25:38,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025023526] [2021-02-24 04:25:38,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 04:25:38,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:38,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 04:25:38,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:25:38,670 INFO L87 Difference]: Start difference. First operand 232 states and 248 transitions. Second operand 8 states. [2021-02-24 04:25:39,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:39,250 INFO L93 Difference]: Finished difference Result 250 states and 268 transitions. [2021-02-24 04:25:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 04:25:39,250 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2021-02-24 04:25:39,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:39,251 INFO L225 Difference]: With dead ends: 250 [2021-02-24 04:25:39,251 INFO L226 Difference]: Without dead ends: 245 [2021-02-24 04:25:39,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-02-24 04:25:39,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-02-24 04:25:39,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 226. [2021-02-24 04:25:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2021-02-24 04:25:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2021-02-24 04:25:39,310 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 62 [2021-02-24 04:25:39,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:39,311 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2021-02-24 04:25:39,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 04:25:39,311 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2021-02-24 04:25:39,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-24 04:25:39,312 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:39,312 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] [2021-02-24 04:25:39,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-24 04:25:39,313 INFO L428 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:39,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:39,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1193557234, now seen corresponding path program 1 times [2021-02-24 04:25:39,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:39,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982822517] [2021-02-24 04:25:39,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:39,317 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:25:39,334 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:25:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:25:39,353 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:25:39,394 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:25:39,395 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:25:39,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-02-24 04:25:39,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:25:39 BoogieIcfgContainer [2021-02-24 04:25:39,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:25:39,423 INFO L168 Benchmark]: Toolchain (without parser) took 18945.43 ms. Allocated memory was 165.7 MB in the beginning and 345.0 MB in the end (delta: 179.3 MB). Free memory was 141.6 MB in the beginning and 134.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 187.9 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:39,423 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 165.7 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:25:39,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.17 ms. Allocated memory is still 165.7 MB. Free memory was 140.3 MB in the beginning and 115.9 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:39,425 INFO L168 Benchmark]: Boogie Preprocessor took 165.20 ms. Allocated memory is still 165.7 MB. Free memory was 115.9 MB in the beginning and 147.7 MB in the end (delta: -31.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:39,425 INFO L168 Benchmark]: RCFGBuilder took 814.35 ms. Allocated memory was 165.7 MB in the beginning and 199.2 MB in the end (delta: 33.6 MB). Free memory was 147.7 MB in the beginning and 172.8 MB in the end (delta: -25.1 MB). Peak memory consumption was 59.3 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:39,425 INFO L168 Benchmark]: TraceAbstraction took 17263.09 ms. Allocated memory was 199.2 MB in the beginning and 345.0 MB in the end (delta: 145.8 MB). Free memory was 172.3 MB in the beginning and 134.0 MB in the end (delta: 38.3 MB). Peak memory consumption was 184.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:39,426 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 165.7 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 681.17 ms. Allocated memory is still 165.7 MB. Free memory was 140.3 MB in the beginning and 115.9 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 165.20 ms. Allocated memory is still 165.7 MB. Free memory was 115.9 MB in the beginning and 147.7 MB in the end (delta: -31.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 814.35 ms. Allocated memory was 165.7 MB in the beginning and 199.2 MB in the end (delta: 33.6 MB). Free memory was 147.7 MB in the beginning and 172.8 MB in the end (delta: -25.1 MB). Peak memory consumption was 59.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17263.09 ms. Allocated memory was 199.2 MB in the beginning and 345.0 MB in the end (delta: 145.8 MB). Free memory was 172.3 MB in the beginning and 134.0 MB in the end (delta: 38.3 MB). Peak memory consumption was 184.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1040]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1003] SLL* list = malloc(sizeof(SLL)); [L1004] list->next = ((void*)0) [L1005] list->prev = ((void*)0) [L1006] COND FALSE !(!(list != ((void*)0))) [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1006] list->inner = malloc(sizeof(SLL)) [L1006] EXPR list->inner [L1006] list->inner->next = ((void*)0) [L1006] EXPR list->inner [L1006] list->inner->inner = ((void*)0) [L1006] EXPR list->inner [L1006] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L1006] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1008] SLL* end = list; [L1011] COND FALSE !(__VERIFIER_nondet_int()) [L1022] end = ((void*)0) [L1023] end = list [L1026] COND FALSE !(!(((void*)0) != end)) [L1028] COND TRUE ((void*)0) != end [L1030] int len = 0; [L1031] EXPR end->inner [L1031] SLL* inner = end->inner; [L1032] COND TRUE ((void*)0) != inner [L1034] COND TRUE len == 0 [L1035] len = 1 [L1038] COND FALSE !(!(((void*)0) != inner)) [L1039] EXPR inner->inner [L1039] COND FALSE !(!(((void*)0) == inner->inner)) [L1040] EXPR inner->next [L1040] COND TRUE !(((void*)0) != inner->next) [L1040] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 193 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.1s, OverallIterations: 15, TraceHistogramMax: 1, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2257 SDtfs, 4045 SDslu, 6522 SDs, 0 SdLazy, 5206 SolverSat, 148 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 239 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 1059 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...