/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-b7b32d2 [2021-02-22 02:00:25,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:00:25,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:00:25,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 02:00:25,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 02:00:25,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 02:00:25,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 02:00:25,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 02:00:25,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 02:00:25,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 02:00:25,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 02:00:25,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 02:00:25,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:00:25,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:00:25,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:00:25,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:00:25,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:00:25,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:00:25,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:00:25,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:00:25,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:00:25,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:00:25,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:00:25,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:00:25,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 02:00:25,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 02:00:25,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 02:00:25,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 02:00:25,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 02:00:25,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 02:00:25,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 02:00:25,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 02:00:25,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 02:00:25,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 02:00:25,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 02:00:25,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 02:00:25,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 02:00:25,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 02:00:25,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:00:25,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:00:25,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:00:25,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:00:25,835 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:00:25,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:00:25,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:00:25,840 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:00:25,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:00:25,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:00:25,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:00:25,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:00:25,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:00:25,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:00:25,843 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:00:25,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:00:25,843 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:00:25,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:00:25,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:00:25,844 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:00:25,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:00:25,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:00:25,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:00:25,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:00:25,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:00:25,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:00:25,846 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:00:25,846 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:00:26,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:00:26,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:00:26,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:00:26,345 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:00:26,350 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:00:26,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2021-02-22 02:00:26,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b18a6ea/5c0151304bcc43468b9bc7f1837df590/FLAG8f06c2d72 [2021-02-22 02:00:27,114 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:00:27,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i [2021-02-22 02:00:27,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b18a6ea/5c0151304bcc43468b9bc7f1837df590/FLAG8f06c2d72 [2021-02-22 02:00:27,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b18a6ea/5c0151304bcc43468b9bc7f1837df590 [2021-02-22 02:00:27,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:00:27,451 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:00:27,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:00:27,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:00:27,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:00:27,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:00:27" (1/1) ... [2021-02-22 02:00:27,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73570a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:27, skipping insertion in model container [2021-02-22 02:00:27,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:00:27" (1/1) ... [2021-02-22 02:00:27,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:00:27,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:00:27,932 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] [2021-02-22 02:00:27,953 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] [2021-02-22 02:00:27,958 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] [2021-02-22 02:00:27,959 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] [2021-02-22 02:00:27,964 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] [2021-02-22 02:00:27,966 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[23032,23045] [2021-02-22 02:00:27,972 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] [2021-02-22 02:00:27,974 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[23343,23356] [2021-02-22 02:00:27,976 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[23422,23435] [2021-02-22 02:00:27,978 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[23512,23525] [2021-02-22 02:00:27,981 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] [2021-02-22 02:00:27,983 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] [2021-02-22 02:00:27,985 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] [2021-02-22 02:00:28,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:00:28,012 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:00:28,047 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] [2021-02-22 02:00:28,051 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] [2021-02-22 02:00:28,053 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] [2021-02-22 02:00:28,054 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] [2021-02-22 02:00:28,057 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] [2021-02-22 02:00:28,058 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] [2021-02-22 02:00:28,060 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] [2021-02-22 02:00:28,061 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] [2021-02-22 02:00:28,062 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] [2021-02-22 02:00:28,063 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] [2021-02-22 02:00:28,065 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] [2021-02-22 02:00:28,065 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] [2021-02-22 02:00:28,066 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] [2021-02-22 02:00:28,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:00:28,176 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:00:28,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:28 WrapperNode [2021-02-22 02:00:28,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:00:28,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:00:28,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:00:28,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:00:28,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:28" (1/1) ... [2021-02-22 02:00:28,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:28" (1/1) ... [2021-02-22 02:00:28,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:28" (1/1) ... [2021-02-22 02:00:28,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:28" (1/1) ... [2021-02-22 02:00:28,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:28" (1/1) ... [2021-02-22 02:00:28,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:28" (1/1) ... [2021-02-22 02:00:28,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:28" (1/1) ... [2021-02-22 02:00:28,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:00:28,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:00:28,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:00:28,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:00:28,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:28" (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 [2021-02-22 02:00:28,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:00:28,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:00:28,394 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:00:28,394 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:00:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-22 02:00:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-22 02:00:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-22 02:00:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-22 02:00:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-22 02:00:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-22 02:00:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-22 02:00:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-22 02:00:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-22 02:00:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-22 02:00:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-22 02:00:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-22 02:00:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-22 02:00:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-22 02:00:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-22 02:00:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-22 02:00:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-22 02:00:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-22 02:00:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-22 02:00:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-22 02:00:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-22 02:00:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-22 02:00:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-22 02:00:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-22 02:00:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-22 02:00:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-22 02:00:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-22 02:00:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-22 02:00:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-22 02:00:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-22 02:00:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-22 02:00:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-22 02:00:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-22 02:00:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-22 02:00:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-22 02:00:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-22 02:00:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-22 02:00:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-22 02:00:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-22 02:00:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-22 02:00:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-22 02:00:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-22 02:00:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-22 02:00:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-22 02:00:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-22 02:00:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-22 02:00:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-22 02:00:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-22 02:00:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-22 02:00:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-22 02:00:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 02:00:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-22 02:00:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-22 02:00:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 02:00:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-22 02:00:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-22 02:00:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-22 02:00:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-22 02:00:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-22 02:00:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:00:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-22 02:00:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-22 02:00:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-22 02:00:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:00:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-22 02:00:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-22 02:00:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-22 02:00:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-22 02:00:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-22 02:00:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-22 02:00:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-22 02:00:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-22 02:00:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-22 02:00:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-22 02:00:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-22 02:00:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-22 02:00:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-22 02:00:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-22 02:00:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-22 02:00:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-22 02:00:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-22 02:00:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-22 02:00:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-22 02:00:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-22 02:00:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-22 02:00:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-22 02:00:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-22 02:00:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-22 02:00:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-22 02:00:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-22 02:00:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-22 02:00:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-22 02:00:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-22 02:00:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-22 02:00:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-22 02:00:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-22 02:00:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-22 02:00:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-22 02:00:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-22 02:00:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-22 02:00:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-22 02:00:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-22 02:00:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-22 02:00:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:00:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:00:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-22 02:00:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-22 02:00:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:00:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:00:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:00:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 02:00:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 02:00:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 02:00:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:00:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:00:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:00:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:00:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:00:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:00:29,457 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:00:29,457 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-02-22 02:00:29,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:00:29 BoogieIcfgContainer [2021-02-22 02:00:29,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:00:29,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:00:29,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:00:29,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:00:29,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:00:27" (1/3) ... [2021-02-22 02:00:29,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3671ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:00:29, skipping insertion in model container [2021-02-22 02:00:29,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:28" (2/3) ... [2021-02-22 02:00:29,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3671ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:00:29, skipping insertion in model container [2021-02-22 02:00:29,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:00:29" (3/3) ... [2021-02-22 02:00:29,468 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2021-02-22 02:00:29,476 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:00:29,481 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2021-02-22 02:00:29,502 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-02-22 02:00:29,533 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:00:29,533 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:00:29,533 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:00:29,534 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:00:29,534 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:00:29,534 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:00:29,534 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:00:29,534 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:00:29,574 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states. [2021-02-22 02:00:29,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-22 02:00:29,590 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:29,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:00:29,592 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]=== [2021-02-22 02:00:29,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:29,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1375890334, now seen corresponding path program 1 times [2021-02-22 02:00:29,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:29,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511611689] [2021-02-22 02:00:29,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:29,741 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:29,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:29,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:29,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:30,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:30,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:30,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:30,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:30,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:30,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:30,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:30,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:30,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:30,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511611689] [2021-02-22 02:00:30,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:30,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-22 02:00:30,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315758338] [2021-02-22 02:00:30,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-22 02:00:30,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:30,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-22 02:00:30,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:00:30,124 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 5 states. [2021-02-22 02:00:30,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:30,863 INFO L93 Difference]: Finished difference Result 376 states and 492 transitions. [2021-02-22 02:00:30,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 02:00:30,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-02-22 02:00:30,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:30,879 INFO L225 Difference]: With dead ends: 376 [2021-02-22 02:00:30,879 INFO L226 Difference]: Without dead ends: 198 [2021-02-22 02:00:30,885 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 [2021-02-22 02:00:30,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-02-22 02:00:30,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 168. [2021-02-22 02:00:30,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2021-02-22 02:00:30,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 177 transitions. [2021-02-22 02:00:30,957 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 177 transitions. Word has length 17 [2021-02-22 02:00:30,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:30,957 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 177 transitions. [2021-02-22 02:00:30,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-22 02:00:30,957 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 177 transitions. [2021-02-22 02:00:30,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-22 02:00:30,959 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:30,959 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] [2021-02-22 02:00:30,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:00:30,960 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]=== [2021-02-22 02:00:30,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:30,961 INFO L82 PathProgramCache]: Analyzing trace with hash -590767728, now seen corresponding path program 1 times [2021-02-22 02:00:30,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:30,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117036153] [2021-02-22 02:00:30,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:30,971 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:31,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:31,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:31,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:31,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:31,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:31,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:31,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:31,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:31,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:31,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117036153] [2021-02-22 02:00:31,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:31,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:00:31,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896669952] [2021-02-22 02:00:31,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:00:31,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:31,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:00:31,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:00:31,083 INFO L87 Difference]: Start difference. First operand 168 states and 177 transitions. Second operand 4 states. [2021-02-22 02:00:31,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:31,618 INFO L93 Difference]: Finished difference Result 174 states and 183 transitions. [2021-02-22 02:00:31,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 02:00:31,619 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2021-02-22 02:00:31,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:31,622 INFO L225 Difference]: With dead ends: 174 [2021-02-22 02:00:31,622 INFO L226 Difference]: Without dead ends: 169 [2021-02-22 02:00:31,624 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 [2021-02-22 02:00:31,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-02-22 02:00:31,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-02-22 02:00:31,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2021-02-22 02:00:31,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 178 transitions. [2021-02-22 02:00:31,650 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 178 transitions. Word has length 29 [2021-02-22 02:00:31,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:31,651 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 178 transitions. [2021-02-22 02:00:31,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:00:31,651 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 178 transitions. [2021-02-22 02:00:31,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-22 02:00:31,652 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:31,653 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] [2021-02-22 02:00:31,653 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:00:31,653 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]=== [2021-02-22 02:00:31,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:31,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1889053171, now seen corresponding path program 1 times [2021-02-22 02:00:31,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:31,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272357039] [2021-02-22 02:00:31,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:31,660 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:31,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:31,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:31,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:31,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:00:31,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:31,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 02:00:31,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:31,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:00:31,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:31,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:00:31,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:31,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:31,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:31,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:31,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:31,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:31,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:31,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:31,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272357039] [2021-02-22 02:00:31,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:31,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:00:31,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920402340] [2021-02-22 02:00:31,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:00:31,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:31,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:00:31,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:00:31,999 INFO L87 Difference]: Start difference. First operand 169 states and 178 transitions. Second operand 8 states. [2021-02-22 02:00:32,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:32,874 INFO L93 Difference]: Finished difference Result 259 states and 274 transitions. [2021-02-22 02:00:32,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-22 02:00:32,875 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2021-02-22 02:00:32,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:32,879 INFO L225 Difference]: With dead ends: 259 [2021-02-22 02:00:32,879 INFO L226 Difference]: Without dead ends: 254 [2021-02-22 02:00:32,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-02-22 02:00:32,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-02-22 02:00:32,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 163. [2021-02-22 02:00:32,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2021-02-22 02:00:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 172 transitions. [2021-02-22 02:00:32,908 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 172 transitions. Word has length 31 [2021-02-22 02:00:32,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:32,908 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 172 transitions. [2021-02-22 02:00:32,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:00:32,909 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 172 transitions. [2021-02-22 02:00:32,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-22 02:00:32,910 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:32,910 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] [2021-02-22 02:00:32,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 02:00:32,911 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]=== [2021-02-22 02:00:32,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:32,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1151103869, now seen corresponding path program 1 times [2021-02-22 02:00:32,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:32,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180079069] [2021-02-22 02:00:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:32,917 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:32,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:32,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:32,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:32,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:00:32,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:32,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:00:32,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:32,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-22 02:00:32,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:32,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:33,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:33,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:33,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:33,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180079069] [2021-02-22 02:00:33,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:33,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 02:00:33,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707688645] [2021-02-22 02:00:33,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 02:00:33,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:33,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 02:00:33,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-22 02:00:33,064 INFO L87 Difference]: Start difference. First operand 163 states and 172 transitions. Second operand 6 states. [2021-02-22 02:00:33,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:33,674 INFO L93 Difference]: Finished difference Result 381 states and 403 transitions. [2021-02-22 02:00:33,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-22 02:00:33,674 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2021-02-22 02:00:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:33,676 INFO L225 Difference]: With dead ends: 381 [2021-02-22 02:00:33,676 INFO L226 Difference]: Without dead ends: 253 [2021-02-22 02:00:33,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:00:33,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-02-22 02:00:33,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 166. [2021-02-22 02:00:33,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2021-02-22 02:00:33,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 175 transitions. [2021-02-22 02:00:33,702 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 175 transitions. Word has length 37 [2021-02-22 02:00:33,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:33,703 INFO L480 AbstractCegarLoop]: Abstraction has 166 states and 175 transitions. [2021-02-22 02:00:33,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 02:00:33,703 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 175 transitions. [2021-02-22 02:00:33,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-02-22 02:00:33,704 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:33,705 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] [2021-02-22 02:00:33,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 02:00:33,705 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]=== [2021-02-22 02:00:33,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:33,706 INFO L82 PathProgramCache]: Analyzing trace with hash 670006272, now seen corresponding path program 1 times [2021-02-22 02:00:33,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:33,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050030883] [2021-02-22 02:00:33,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:33,711 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:33,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:33,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:33,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:33,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:33,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:33,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:33,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:33,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:33,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050030883] [2021-02-22 02:00:33,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:33,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 02:00:33,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925058749] [2021-02-22 02:00:33,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 02:00:33,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:33,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 02:00:33,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-22 02:00:33,812 INFO L87 Difference]: Start difference. First operand 166 states and 175 transitions. Second operand 6 states. [2021-02-22 02:00:34,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:34,192 INFO L93 Difference]: Finished difference Result 274 states and 289 transitions. [2021-02-22 02:00:34,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-22 02:00:34,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2021-02-22 02:00:34,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:34,195 INFO L225 Difference]: With dead ends: 274 [2021-02-22 02:00:34,195 INFO L226 Difference]: Without dead ends: 242 [2021-02-22 02:00:34,196 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 [2021-02-22 02:00:34,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-02-22 02:00:34,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 165. [2021-02-22 02:00:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2021-02-22 02:00:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 174 transitions. [2021-02-22 02:00:34,217 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 174 transitions. Word has length 39 [2021-02-22 02:00:34,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:34,217 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 174 transitions. [2021-02-22 02:00:34,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 02:00:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 174 transitions. [2021-02-22 02:00:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-22 02:00:34,219 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:34,219 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] [2021-02-22 02:00:34,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 02:00:34,219 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]=== [2021-02-22 02:00:34,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:34,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1831766512, now seen corresponding path program 1 times [2021-02-22 02:00:34,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:34,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837763963] [2021-02-22 02:00:34,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:34,225 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:34,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:34,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:00:34,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:00:34,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:00:34,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:00:34,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 02:00:34,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:00:34,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:00:34,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:34,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:34,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:34,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:34,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:34,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:34,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837763963] [2021-02-22 02:00:34,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:34,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:00:34,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035970798] [2021-02-22 02:00:34,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:00:34,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:34,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:00:34,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:00:34,456 INFO L87 Difference]: Start difference. First operand 165 states and 174 transitions. Second operand 12 states. [2021-02-22 02:00:35,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:35,345 INFO L93 Difference]: Finished difference Result 290 states and 306 transitions. [2021-02-22 02:00:35,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 02:00:35,346 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2021-02-22 02:00:35,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:35,348 INFO L225 Difference]: With dead ends: 290 [2021-02-22 02:00:35,348 INFO L226 Difference]: Without dead ends: 286 [2021-02-22 02:00:35,349 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 [2021-02-22 02:00:35,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-02-22 02:00:35,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 180. [2021-02-22 02:00:35,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2021-02-22 02:00:35,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 190 transitions. [2021-02-22 02:00:35,380 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 190 transitions. Word has length 46 [2021-02-22 02:00:35,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:35,381 INFO L480 AbstractCegarLoop]: Abstraction has 180 states and 190 transitions. [2021-02-22 02:00:35,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:00:35,381 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 190 transitions. [2021-02-22 02:00:35,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-22 02:00:35,382 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:35,382 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] [2021-02-22 02:00:35,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 02:00:35,383 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]=== [2021-02-22 02:00:35,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:35,383 INFO L82 PathProgramCache]: Analyzing trace with hash 2040854509, now seen corresponding path program 1 times [2021-02-22 02:00:35,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:35,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146130670] [2021-02-22 02:00:35,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:35,388 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:35,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:35,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:00:35,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:35,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:35,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:35,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146130670] [2021-02-22 02:00:35,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:35,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:00:35,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637772170] [2021-02-22 02:00:35,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:00:35,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:35,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:00:35,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:00:35,459 INFO L87 Difference]: Start difference. First operand 180 states and 190 transitions. Second operand 4 states. [2021-02-22 02:00:35,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:35,753 INFO L93 Difference]: Finished difference Result 286 states and 305 transitions. [2021-02-22 02:00:35,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 02:00:35,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2021-02-22 02:00:35,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:35,758 INFO L225 Difference]: With dead ends: 286 [2021-02-22 02:00:35,759 INFO L226 Difference]: Without dead ends: 219 [2021-02-22 02:00:35,760 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 [2021-02-22 02:00:35,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-02-22 02:00:35,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 183. [2021-02-22 02:00:35,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2021-02-22 02:00:35,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 194 transitions. [2021-02-22 02:00:35,803 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 194 transitions. Word has length 47 [2021-02-22 02:00:35,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:35,806 INFO L480 AbstractCegarLoop]: Abstraction has 183 states and 194 transitions. [2021-02-22 02:00:35,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:00:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 194 transitions. [2021-02-22 02:00:35,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-02-22 02:00:35,814 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:35,814 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] [2021-02-22 02:00:35,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 02:00:35,815 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]=== [2021-02-22 02:00:35,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:35,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1539352912, now seen corresponding path program 1 times [2021-02-22 02:00:35,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:35,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201250542] [2021-02-22 02:00:35,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:35,822 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:35,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:35,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:00:35,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:35,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:35,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:35,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201250542] [2021-02-22 02:00:35,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:35,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:00:35,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137439150] [2021-02-22 02:00:35,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:00:35,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:35,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:00:35,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:00:35,918 INFO L87 Difference]: Start difference. First operand 183 states and 194 transitions. Second operand 4 states. [2021-02-22 02:00:36,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:36,190 INFO L93 Difference]: Finished difference Result 183 states and 194 transitions. [2021-02-22 02:00:36,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 02:00:36,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2021-02-22 02:00:36,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:36,192 INFO L225 Difference]: With dead ends: 183 [2021-02-22 02:00:36,193 INFO L226 Difference]: Without dead ends: 181 [2021-02-22 02:00:36,193 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 [2021-02-22 02:00:36,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-02-22 02:00:36,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-02-22 02:00:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2021-02-22 02:00:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 192 transitions. [2021-02-22 02:00:36,222 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 192 transitions. Word has length 49 [2021-02-22 02:00:36,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:36,223 INFO L480 AbstractCegarLoop]: Abstraction has 181 states and 192 transitions. [2021-02-22 02:00:36,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:00:36,223 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 192 transitions. [2021-02-22 02:00:36,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-22 02:00:36,224 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:36,224 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] [2021-02-22 02:00:36,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 02:00:36,224 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]=== [2021-02-22 02:00:36,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:36,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1003431575, now seen corresponding path program 1 times [2021-02-22 02:00:36,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:36,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732632221] [2021-02-22 02:00:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:36,229 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:36,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:36,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:36,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:36,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:00:36,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:36,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 02:00:36,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:36,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:00:36,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:36,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:00:36,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:36,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:00:36,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:36,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:00:36,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:36,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:36,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:36,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:36,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:36,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:36,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732632221] [2021-02-22 02:00:36,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:36,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 02:00:36,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948298668] [2021-02-22 02:00:36,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 02:00:36,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:36,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 02:00:36,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 02:00:36,430 INFO L87 Difference]: Start difference. First operand 181 states and 192 transitions. Second operand 9 states. [2021-02-22 02:00:37,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:37,135 INFO L93 Difference]: Finished difference Result 372 states and 397 transitions. [2021-02-22 02:00:37,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-22 02:00:37,135 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2021-02-22 02:00:37,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:37,140 INFO L225 Difference]: With dead ends: 372 [2021-02-22 02:00:37,140 INFO L226 Difference]: Without dead ends: 304 [2021-02-22 02:00:37,142 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 [2021-02-22 02:00:37,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-02-22 02:00:37,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 200. [2021-02-22 02:00:37,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-22 02:00:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 212 transitions. [2021-02-22 02:00:37,176 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 212 transitions. Word has length 53 [2021-02-22 02:00:37,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:37,178 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 212 transitions. [2021-02-22 02:00:37,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 02:00:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 212 transitions. [2021-02-22 02:00:37,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-22 02:00:37,179 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:37,179 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] [2021-02-22 02:00:37,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 02:00:37,180 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]=== [2021-02-22 02:00:37,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:37,180 INFO L82 PathProgramCache]: Analyzing trace with hash 46675779, now seen corresponding path program 1 times [2021-02-22 02:00:37,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:37,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260045610] [2021-02-22 02:00:37,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:37,224 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:37,245 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:37,257 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:37,264 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:37,279 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-22 02:00:37,300 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-22 02:00:37,315 WARN L141 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size [2021-02-22 02:00:37,321 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:37,326 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-22 02:00:37,336 WARN L147 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-02-22 02:00:37,338 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:37,342 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:37,344 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:37,348 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:37,358 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-22 02:00:37,361 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-22 02:00:37,365 WARN L141 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size [2021-02-22 02:00:37,366 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:37,368 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-22 02:00:37,373 WARN L147 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size 66 [2021-02-22 02:00:37,375 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:37,378 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:37,380 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:37,384 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:37,392 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-22 02:00:37,395 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-22 02:00:37,398 WARN L141 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size [2021-02-22 02:00:37,400 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:37,401 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-22 02:00:37,407 WARN L147 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size 66 [2021-02-22 02:00:37,408 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:37,412 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:37,414 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:37,417 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:37,426 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-22 02:00:37,429 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-22 02:00:37,432 WARN L141 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size [2021-02-22 02:00:37,434 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:37,435 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-22 02:00:37,441 WARN L147 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-02-22 02:00:37,441 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:00:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:37,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:37,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:00:37,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:37,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:37,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:37,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:37,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:00:37,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:00:37,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:00:37,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:00:37,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 02:00:37,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:00:37,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:37,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:00:37,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:37,667 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.5 percent of original size [2021-02-22 02:00:37,668 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.5 percent of original size 37 [2021-02-22 02:00:37,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:37,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-22 02:00:37,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-22 02:00:37,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-22 02:00:37,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-22 02:00:37,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-22 02:00:37,797 WARN L141 QuantifierPusher]: treesize reduction 15, result has 6.3 percent of original size [2021-02-22 02:00:37,797 WARN L147 QuantifierPusher]: treesize reduction 15, result has 6.3 percent of original size 1 [2021-02-22 02:00:37,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260045610] [2021-02-22 02:00:37,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:37,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:00:37,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216175137] [2021-02-22 02:00:37,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:00:37,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:37,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:00:37,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:00:37,800 INFO L87 Difference]: Start difference. First operand 200 states and 212 transitions. Second operand 12 states. [2021-02-22 02:00:38,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:38,567 INFO L93 Difference]: Finished difference Result 214 states and 227 transitions. [2021-02-22 02:00:38,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-22 02:00:38,567 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 58 [2021-02-22 02:00:38,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:38,569 INFO L225 Difference]: With dead ends: 214 [2021-02-22 02:00:38,569 INFO L226 Difference]: Without dead ends: 210 [2021-02-22 02:00:38,570 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 [2021-02-22 02:00:38,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-02-22 02:00:38,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 194. [2021-02-22 02:00:38,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-02-22 02:00:38,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 206 transitions. [2021-02-22 02:00:38,607 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 206 transitions. Word has length 58 [2021-02-22 02:00:38,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:38,625 INFO L480 AbstractCegarLoop]: Abstraction has 194 states and 206 transitions. [2021-02-22 02:00:38,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:00:38,625 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 206 transitions. [2021-02-22 02:00:38,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-22 02:00:38,625 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:38,626 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] [2021-02-22 02:00:38,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-22 02:00:38,626 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]=== [2021-02-22 02:00:38,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:38,627 INFO L82 PathProgramCache]: Analyzing trace with hash -520604991, now seen corresponding path program 1 times [2021-02-22 02:00:38,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:38,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22511679] [2021-02-22 02:00:38,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:38,635 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:38,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:38,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:38,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:38,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:00:38,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:38,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:00:38,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:38,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:00:38,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:38,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:00:38,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:38,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 02:00:38,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:38,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 02:00:38,898 WARN L141 QuantifierPusher]: treesize reduction 11, result has 76.1 percent of original size [2021-02-22 02:00:38,900 WARN L147 QuantifierPusher]: treesize reduction 11, result has 76.1 percent of original size 35 [2021-02-22 02:00:38,944 WARN L141 QuantifierPusher]: treesize reduction 10, result has 84.4 percent of original size [2021-02-22 02:00:38,946 WARN L147 QuantifierPusher]: treesize reduction 10, result has 84.4 percent of original size 54 [2021-02-22 02:00:38,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:38,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-22 02:00:39,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:39,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:00:39,036 WARN L141 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-02-22 02:00:39,038 WARN L147 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size 27 [2021-02-22 02:00:39,068 WARN L141 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-02-22 02:00:39,069 WARN L147 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size 22 [2021-02-22 02:00:39,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:39,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:00:39,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:39,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:39,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:39,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:39,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:39,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:39,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22511679] [2021-02-22 02:00:39,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:39,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-22 02:00:39,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211967611] [2021-02-22 02:00:39,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-22 02:00:39,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:39,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-22 02:00:39,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-02-22 02:00:39,188 INFO L87 Difference]: Start difference. First operand 194 states and 206 transitions. Second operand 16 states. [2021-02-22 02:00:42,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:42,315 INFO L93 Difference]: Finished difference Result 629 states and 668 transitions. [2021-02-22 02:00:42,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-02-22 02:00:42,316 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 58 [2021-02-22 02:00:42,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:42,321 INFO L225 Difference]: With dead ends: 629 [2021-02-22 02:00:42,321 INFO L226 Difference]: Without dead ends: 626 [2021-02-22 02:00:42,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=470, Invalid=1980, Unknown=0, NotChecked=0, Total=2450 [2021-02-22 02:00:42,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2021-02-22 02:00:42,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 211. [2021-02-22 02:00:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2021-02-22 02:00:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 224 transitions. [2021-02-22 02:00:42,376 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 224 transitions. Word has length 58 [2021-02-22 02:00:42,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:42,377 INFO L480 AbstractCegarLoop]: Abstraction has 211 states and 224 transitions. [2021-02-22 02:00:42,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-22 02:00:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 224 transitions. [2021-02-22 02:00:42,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-22 02:00:42,378 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:42,378 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] [2021-02-22 02:00:42,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-22 02:00:42,379 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]=== [2021-02-22 02:00:42,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:42,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1730207930, now seen corresponding path program 1 times [2021-02-22 02:00:42,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:42,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631291373] [2021-02-22 02:00:42,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:42,383 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:42,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:42,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:42,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:42,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:42,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:42,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:42,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631291373] [2021-02-22 02:00:42,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:42,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:00:42,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705526119] [2021-02-22 02:00:42,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:00:42,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:42,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:00:42,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:00:42,437 INFO L87 Difference]: Start difference. First operand 211 states and 224 transitions. Second operand 4 states. [2021-02-22 02:00:42,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:42,725 INFO L93 Difference]: Finished difference Result 217 states and 230 transitions. [2021-02-22 02:00:42,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 02:00:42,725 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2021-02-22 02:00:42,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:42,727 INFO L225 Difference]: With dead ends: 217 [2021-02-22 02:00:42,727 INFO L226 Difference]: Without dead ends: 212 [2021-02-22 02:00:42,727 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 [2021-02-22 02:00:42,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-02-22 02:00:42,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2021-02-22 02:00:42,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2021-02-22 02:00:42,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 225 transitions. [2021-02-22 02:00:42,805 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 225 transitions. Word has length 60 [2021-02-22 02:00:42,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:42,805 INFO L480 AbstractCegarLoop]: Abstraction has 212 states and 225 transitions. [2021-02-22 02:00:42,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:00:42,806 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 225 transitions. [2021-02-22 02:00:42,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-22 02:00:42,807 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:42,807 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] [2021-02-22 02:00:42,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-22 02:00:42,807 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]=== [2021-02-22 02:00:42,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:42,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1932580842, now seen corresponding path program 1 times [2021-02-22 02:00:42,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:42,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571954730] [2021-02-22 02:00:42,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:42,814 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:42,822 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:42,823 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:42,826 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:42,834 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-22 02:00:42,839 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-22 02:00:42,845 WARN L141 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size [2021-02-22 02:00:42,846 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:42,848 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:42,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-22 02:00:42,852 WARN L147 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-02-22 02:00:42,854 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:42,857 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:42,858 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:42,861 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:42,869 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-22 02:00:42,871 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-22 02:00:42,874 WARN L141 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size [2021-02-22 02:00:42,875 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:42,876 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:42,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-22 02:00:42,881 WARN L147 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size 66 [2021-02-22 02:00:42,885 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:42,889 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:42,890 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:42,893 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:42,902 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-22 02:00:42,904 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-22 02:00:42,906 WARN L141 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size [2021-02-22 02:00:42,907 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:42,908 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:42,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-22 02:00:42,912 WARN L147 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size 66 [2021-02-22 02:00:42,913 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:42,915 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:42,916 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-22 02:00:42,919 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-22 02:00:42,929 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-22 02:00:42,931 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-22 02:00:42,933 WARN L141 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size [2021-02-22 02:00:42,935 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:42,936 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:42,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-22 02:00:42,940 WARN L147 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-02-22 02:00:42,941 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:00:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:42,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:42,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:42,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:42,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:42,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:42,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:42,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:42,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:42,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:42,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:43,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:43,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:43,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:00:43,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:00:43,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:00:43,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:00:43,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:00:43,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:00:43,078 WARN L141 QuantifierPusher]: treesize reduction 10, result has 28.6 percent of original size [2021-02-22 02:00:43,078 WARN L147 QuantifierPusher]: treesize reduction 10, result has 28.6 percent of original size 4 [2021-02-22 02:00:43,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:00:43,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-22 02:00:43,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:00:43,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:00:43,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:00:43,177 WARN L141 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size [2021-02-22 02:00:43,178 WARN L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-02-22 02:00:43,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:00:43,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-22 02:00:43,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:00:43,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:00:43,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-22 02:00:43,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-22 02:00:43,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-02-22 02:00:43,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-02-22 02:00:43,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-02-22 02:00:43,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-02-22 02:00:43,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-02-22 02:00:43,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-02-22 02:00:43,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-02-22 02:00:43,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-02-22 02:00:43,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:43,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:43,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:00:43,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-02-22 02:00:43,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571954730] [2021-02-22 02:00:43,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:43,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-02-22 02:00:43,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938875469] [2021-02-22 02:00:43,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-22 02:00:43,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:43,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-22 02:00:43,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2021-02-22 02:00:43,967 INFO L87 Difference]: Start difference. First operand 212 states and 225 transitions. Second operand 23 states. [2021-02-22 02:00:46,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:46,115 INFO L93 Difference]: Finished difference Result 312 states and 331 transitions. [2021-02-22 02:00:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-22 02:00:46,116 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 62 [2021-02-22 02:00:46,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:46,118 INFO L225 Difference]: With dead ends: 312 [2021-02-22 02:00:46,118 INFO L226 Difference]: Without dead ends: 309 [2021-02-22 02:00:46,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=256, Invalid=1466, Unknown=0, NotChecked=0, Total=1722 [2021-02-22 02:00:46,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-02-22 02:00:46,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 232. [2021-02-22 02:00:46,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2021-02-22 02:00:46,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 248 transitions. [2021-02-22 02:00:46,182 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 248 transitions. Word has length 62 [2021-02-22 02:00:46,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:46,182 INFO L480 AbstractCegarLoop]: Abstraction has 232 states and 248 transitions. [2021-02-22 02:00:46,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-02-22 02:00:46,182 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 248 transitions. [2021-02-22 02:00:46,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-22 02:00:46,183 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:46,183 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] [2021-02-22 02:00:46,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-22 02:00:46,184 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]=== [2021-02-22 02:00:46,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:46,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1674423261, now seen corresponding path program 1 times [2021-02-22 02:00:46,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:46,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928991413] [2021-02-22 02:00:46,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:46,188 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:46,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:46,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:00:46,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 02:00:46,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:00:46,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:00:46,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:46,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:46,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:46,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:46,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928991413] [2021-02-22 02:00:46,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:46,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:00:46,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711500092] [2021-02-22 02:00:46,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:00:46,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:46,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:00:46,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:00:46,305 INFO L87 Difference]: Start difference. First operand 232 states and 248 transitions. Second operand 8 states. [2021-02-22 02:00:46,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:46,819 INFO L93 Difference]: Finished difference Result 251 states and 269 transitions. [2021-02-22 02:00:46,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-22 02:00:46,819 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2021-02-22 02:00:46,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:46,822 INFO L225 Difference]: With dead ends: 251 [2021-02-22 02:00:46,822 INFO L226 Difference]: Without dead ends: 246 [2021-02-22 02:00:46,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-02-22 02:00:46,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-02-22 02:00:46,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 226. [2021-02-22 02:00:46,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2021-02-22 02:00:46,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2021-02-22 02:00:46,878 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 62 [2021-02-22 02:00:46,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:46,878 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2021-02-22 02:00:46,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:00:46,878 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2021-02-22 02:00:46,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-22 02:00:46,879 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:46,879 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] [2021-02-22 02:00:46,879 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-22 02:00:46,879 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]=== [2021-02-22 02:00:46,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:46,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1193557234, now seen corresponding path program 1 times [2021-02-22 02:00:46,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:46,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139158026] [2021-02-22 02:00:46,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:46,883 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:00:46,911 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:00:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:00:46,930 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:00:46,988 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 02:00:46,988 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 02:00:46,989 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-02-22 02:00:47,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:00:47 BoogieIcfgContainer [2021-02-22 02:00:47,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:00:47,019 INFO L168 Benchmark]: Toolchain (without parser) took 19580.70 ms. Allocated memory was 153.1 MB in the beginning and 336.6 MB in the end (delta: 183.5 MB). Free memory was 128.8 MB in the beginning and 281.0 MB in the end (delta: -152.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:47,019 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory is still 127.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:00:47,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.39 ms. Allocated memory is still 153.1 MB. Free memory was 127.7 MB in the beginning and 133.8 MB in the end (delta: -6.1 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:47,019 INFO L168 Benchmark]: Boogie Preprocessor took 93.01 ms. Allocated memory is still 153.1 MB. Free memory was 133.8 MB in the beginning and 130.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:47,021 INFO L168 Benchmark]: RCFGBuilder took 1174.70 ms. Allocated memory is still 153.1 MB. Free memory was 130.6 MB in the beginning and 114.0 MB in the end (delta: 16.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:47,021 INFO L168 Benchmark]: TraceAbstraction took 17556.54 ms. Allocated memory was 153.1 MB in the beginning and 336.6 MB in the end (delta: 183.5 MB). Free memory was 113.5 MB in the beginning and 281.0 MB in the end (delta: -167.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:47,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory is still 127.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 732.39 ms. Allocated memory is still 153.1 MB. Free memory was 127.7 MB in the beginning and 133.8 MB in the end (delta: -6.1 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 93.01 ms. Allocated memory is still 153.1 MB. Free memory was 133.8 MB in the beginning and 130.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1174.70 ms. Allocated memory is still 153.1 MB. Free memory was 130.6 MB in the beginning and 114.0 MB in the end (delta: 16.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17556.54 ms. Allocated memory was 153.1 MB in the beginning and 336.6 MB in the end (delta: 183.5 MB). Free memory was 113.5 MB in the beginning and 281.0 MB in the end (delta: -167.5 MB). Peak memory consumption was 16.6 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: 17.4s, OverallIterations: 15, TraceHistogramMax: 1, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2257 SDtfs, 4016 SDslu, 6931 SDs, 0 SdLazy, 5480 SolverSat, 148 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 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: 0.5s 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...