/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:23:41,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:23:41,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:23:41,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 23:23:41,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 23:23:41,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 23:23:41,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 23:23:41,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 23:23:41,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 23:23:41,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 23:23:41,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 23:23:41,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 23:23:41,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:23:41,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:23:41,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:23:41,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:23:41,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:23:41,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:23:41,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:23:41,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:23:41,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:23:41,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:23:41,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:23:41,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:23:41,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:23:41,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 23:23:41,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 23:23:41,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 23:23:41,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 23:23:41,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 23:23:41,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 23:23:41,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 23:23:41,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 23:23:41,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:23:41,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:23:41,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:23:41,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-01-31 23:23:41,750 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:23:41,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:23:41,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:23:41,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:23:41,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:23:41,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:23:41,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:23:41,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:23:41,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:23:41,752 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:23:41,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:23:41,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:23:41,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:23:41,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:23:41,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:23:41,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:23:41,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:23:41,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:23:41,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:23:41,753 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:23:41,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:23:41,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:23:41,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:23:41,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:23:41,971 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:23:41,972 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:23:41,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2022-01-31 23:23:42,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d96a4ed92/cefda1e65c604a8daa0c9754ff2a2c7c/FLAGd450c4e38 [2022-01-31 23:23:42,403 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:23:42,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2022-01-31 23:23:42,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d96a4ed92/cefda1e65c604a8daa0c9754ff2a2c7c/FLAGd450c4e38 [2022-01-31 23:23:42,428 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d96a4ed92/cefda1e65c604a8daa0c9754ff2a2c7c [2022-01-31 23:23:42,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:23:42,431 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:23:42,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:23:42,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:23:42,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:23:42,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:23:42" (1/1) ... [2022-01-31 23:23:42,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c423fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:42, skipping insertion in model container [2022-01-31 23:23:42,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:23:42" (1/1) ... [2022-01-31 23:23:42,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:23:42,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:23:42,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1551,1564] [2022-01-31 23:23:42,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1758,1771] [2022-01-31 23:23:42,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2095,2108] [2022-01-31 23:23:42,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2296,2309] [2022-01-31 23:23:42,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2701,2714] [2022-01-31 23:23:42,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2902,2915] [2022-01-31 23:23:42,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3228,3241] [2022-01-31 23:23:42,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3435,3448] [2022-01-31 23:23:42,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3914,3927] [2022-01-31 23:23:42,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4118,4131] [2022-01-31 23:23:42,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4426,4439] [2022-01-31 23:23:42,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4630,4643] [2022-01-31 23:23:42,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4995,5008] [2022-01-31 23:23:42,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5198,5211] [2022-01-31 23:23:42,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5412,5425] [2022-01-31 23:23:42,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5616,5629] [2022-01-31 23:23:42,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6138,6151] [2022-01-31 23:23:42,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6342,6355] [2022-01-31 23:23:42,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:23:42,668 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:23:42,681 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1551,1564] [2022-01-31 23:23:42,682 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1758,1771] [2022-01-31 23:23:42,683 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2095,2108] [2022-01-31 23:23:42,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2296,2309] [2022-01-31 23:23:42,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2701,2714] [2022-01-31 23:23:42,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2902,2915] [2022-01-31 23:23:42,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3228,3241] [2022-01-31 23:23:42,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3435,3448] [2022-01-31 23:23:42,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3914,3927] [2022-01-31 23:23:42,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4118,4131] [2022-01-31 23:23:42,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4426,4439] [2022-01-31 23:23:42,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4630,4643] [2022-01-31 23:23:42,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4995,5008] [2022-01-31 23:23:42,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5198,5211] [2022-01-31 23:23:42,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5412,5425] [2022-01-31 23:23:42,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5616,5629] [2022-01-31 23:23:42,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6138,6151] [2022-01-31 23:23:42,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6342,6355] [2022-01-31 23:23:42,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:23:42,715 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:23:42,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:42 WrapperNode [2022-01-31 23:23:42,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:23:42,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:23:42,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:23:42,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:23:42,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:42" (1/1) ... [2022-01-31 23:23:42,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:42" (1/1) ... [2022-01-31 23:23:42,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:42" (1/1) ... [2022-01-31 23:23:42,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:42" (1/1) ... [2022-01-31 23:23:42,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:42" (1/1) ... [2022-01-31 23:23:42,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:42" (1/1) ... [2022-01-31 23:23:42,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:42" (1/1) ... [2022-01-31 23:23:42,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:23:42,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:23:42,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:23:42,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:23:42,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:42" (1/1) ... [2022-01-31 23:23:42,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:23:42,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:23:42,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 23:23:42,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 23:23:42,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:23:42,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:23:42,832 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:23:42,833 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 23:23:42,833 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:23:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:23:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:23:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:23:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:23:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 23:23:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 23:23:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 23:23:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:23:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:23:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:23:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:23:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:23:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:23:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:23:42,922 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:23:42,923 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:23:43,183 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:23:43,190 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:23:43,190 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-31 23:23:43,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:23:43 BoogieIcfgContainer [2022-01-31 23:23:43,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:23:43,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:23:43,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:23:43,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:23:43,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:23:42" (1/3) ... [2022-01-31 23:23:43,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef30193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:23:43, skipping insertion in model container [2022-01-31 23:23:43,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:42" (2/3) ... [2022-01-31 23:23:43,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef30193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:23:43, skipping insertion in model container [2022-01-31 23:23:43,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:23:43" (3/3) ... [2022-01-31 23:23:43,199 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2022-01-31 23:23:43,203 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:23:43,203 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-01-31 23:23:43,249 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:23:43,255 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=QVASR [2022-01-31 23:23:43,255 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-01-31 23:23:43,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 64 states have (on average 1.875) internal successors, (120), 82 states have internal predecessors, (120), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 23:23:43,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-31 23:23:43,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:43,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:23:43,283 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:43,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:43,287 INFO L85 PathProgramCache]: Analyzing trace with hash 129930232, now seen corresponding path program 1 times [2022-01-31 23:23:43,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:43,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70501307] [2022-01-31 23:23:43,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:43,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:43,354 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:43,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:43,508 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:43,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70501307] [2022-01-31 23:23:43,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [70501307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:43,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:43,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:23:43,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700085803] [2022-01-31 23:23:43,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:43,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:23:43,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:43,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:23:43,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:23:43,537 INFO L87 Difference]: Start difference. First operand has 87 states, 64 states have (on average 1.875) internal successors, (120), 82 states have internal predecessors, (120), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:43,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:43,676 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2022-01-31 23:23:43,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:23:43,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-01-31 23:23:43,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:43,689 INFO L225 Difference]: With dead ends: 93 [2022-01-31 23:23:43,690 INFO L226 Difference]: Without dead ends: 80 [2022-01-31 23:23:43,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:23:43,697 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 170 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:43,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 105 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:43,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-01-31 23:23:43,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-01-31 23:23:43,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 76 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:43,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2022-01-31 23:23:43,735 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2022-01-31 23:23:43,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:43,735 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2022-01-31 23:23:43,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2022-01-31 23:23:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-31 23:23:43,736 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:43,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:23:43,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:23:43,736 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:43,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:43,737 INFO L85 PathProgramCache]: Analyzing trace with hash -267127005, now seen corresponding path program 1 times [2022-01-31 23:23:43,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:43,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213553699] [2022-01-31 23:23:43,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:43,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:43,740 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:43,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:43,813 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:43,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213553699] [2022-01-31 23:23:43,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [213553699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:43,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:43,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 23:23:43,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409190711] [2022-01-31 23:23:43,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:43,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 23:23:43,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:43,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 23:23:43,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-31 23:23:43,816 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:43,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:43,939 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2022-01-31 23:23:43,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 23:23:43,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-01-31 23:23:43,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:43,941 INFO L225 Difference]: With dead ends: 80 [2022-01-31 23:23:43,941 INFO L226 Difference]: Without dead ends: 78 [2022-01-31 23:23:43,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-31 23:23:43,942 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 319 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:43,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 74 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:43,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-01-31 23:23:43,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-01-31 23:23:43,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 74 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:43,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2022-01-31 23:23:43,962 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2022-01-31 23:23:43,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:43,963 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2022-01-31 23:23:43,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:43,963 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2022-01-31 23:23:43,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-31 23:23:43,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:43,964 INFO L514 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] [2022-01-31 23:23:43,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:23:43,964 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:43,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:43,965 INFO L85 PathProgramCache]: Analyzing trace with hash 989082342, now seen corresponding path program 1 times [2022-01-31 23:23:43,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:43,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439292228] [2022-01-31 23:23:43,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:43,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:43,967 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:44,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:44,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:44,022 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:44,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439292228] [2022-01-31 23:23:44,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [439292228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:44,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:44,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:23:44,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324913253] [2022-01-31 23:23:44,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:44,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:23:44,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:44,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:23:44,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:23:44,024 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:44,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:44,174 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2022-01-31 23:23:44,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 23:23:44,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-01-31 23:23:44,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:44,176 INFO L225 Difference]: With dead ends: 101 [2022-01-31 23:23:44,176 INFO L226 Difference]: Without dead ends: 99 [2022-01-31 23:23:44,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-31 23:23:44,177 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 207 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:44,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 78 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:44,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-01-31 23:23:44,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2022-01-31 23:23:44,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 72 states have internal predecessors, (76), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:44,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2022-01-31 23:23:44,197 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2022-01-31 23:23:44,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:44,198 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2022-01-31 23:23:44,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:44,198 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2022-01-31 23:23:44,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-31 23:23:44,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:44,199 INFO L514 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] [2022-01-31 23:23:44,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 23:23:44,199 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr3ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:44,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:44,199 INFO L85 PathProgramCache]: Analyzing trace with hash 596784644, now seen corresponding path program 1 times [2022-01-31 23:23:44,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:44,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646296653] [2022-01-31 23:23:44,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:44,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:44,202 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:44,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:44,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:44,256 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:44,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646296653] [2022-01-31 23:23:44,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [646296653] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:44,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:44,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:44,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959172295] [2022-01-31 23:23:44,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:44,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:44,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:44,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:44,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:44,259 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:44,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:44,357 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2022-01-31 23:23:44,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 23:23:44,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-01-31 23:23:44,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:44,358 INFO L225 Difference]: With dead ends: 76 [2022-01-31 23:23:44,359 INFO L226 Difference]: Without dead ends: 74 [2022-01-31 23:23:44,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-31 23:23:44,360 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 234 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:44,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 70 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 23:23:44,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-01-31 23:23:44,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-01-31 23:23:44,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 70 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:44,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2022-01-31 23:23:44,377 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2022-01-31 23:23:44,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:44,377 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2022-01-31 23:23:44,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:44,377 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2022-01-31 23:23:44,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-31 23:23:44,378 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:44,378 INFO L514 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] [2022-01-31 23:23:44,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 23:23:44,378 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr16ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:44,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:44,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1944836287, now seen corresponding path program 1 times [2022-01-31 23:23:44,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:44,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855689791] [2022-01-31 23:23:44,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:44,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:44,381 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:44,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:44,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:44,449 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:44,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855689791] [2022-01-31 23:23:44,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [855689791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:44,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:44,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:44,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460072062] [2022-01-31 23:23:44,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:44,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:44,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:44,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:44,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:44,451 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:44,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:44,788 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2022-01-31 23:23:44,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 23:23:44,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-01-31 23:23:44,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:44,790 INFO L225 Difference]: With dead ends: 141 [2022-01-31 23:23:44,790 INFO L226 Difference]: Without dead ends: 139 [2022-01-31 23:23:44,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-31 23:23:44,791 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 235 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:44,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 125 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 23:23:44,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-01-31 23:23:44,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2022-01-31 23:23:44,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 73 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:44,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2022-01-31 23:23:44,810 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2022-01-31 23:23:44,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:44,811 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2022-01-31 23:23:44,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:44,811 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2022-01-31 23:23:44,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-31 23:23:44,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:44,811 INFO L514 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] [2022-01-31 23:23:44,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 23:23:44,812 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:44,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:44,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1948570096, now seen corresponding path program 1 times [2022-01-31 23:23:44,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:44,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617126538] [2022-01-31 23:23:44,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:44,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:44,814 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:44,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:44,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:44,893 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:44,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617126538] [2022-01-31 23:23:44,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [617126538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:44,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:44,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:44,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376659507] [2022-01-31 23:23:44,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:44,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:44,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:44,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:44,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:44,899 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:45,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:45,161 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2022-01-31 23:23:45,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 23:23:45,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-01-31 23:23:45,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:45,162 INFO L225 Difference]: With dead ends: 108 [2022-01-31 23:23:45,162 INFO L226 Difference]: Without dead ends: 106 [2022-01-31 23:23:45,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-31 23:23:45,163 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 220 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:45,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 81 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:45,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-01-31 23:23:45,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2022-01-31 23:23:45,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 75 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:45,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2022-01-31 23:23:45,182 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2022-01-31 23:23:45,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:45,182 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2022-01-31 23:23:45,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:45,183 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2022-01-31 23:23:45,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-31 23:23:45,185 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:45,185 INFO L514 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] [2022-01-31 23:23:45,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 23:23:45,185 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr17ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:45,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:45,186 INFO L85 PathProgramCache]: Analyzing trace with hash 160385998, now seen corresponding path program 1 times [2022-01-31 23:23:45,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:45,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254836458] [2022-01-31 23:23:45,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:45,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:45,188 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:45,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:45,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:45,287 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:45,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254836458] [2022-01-31 23:23:45,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [254836458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:45,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:45,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:45,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581848908] [2022-01-31 23:23:45,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:45,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:45,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:45,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:45,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:45,290 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:45,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:45,494 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2022-01-31 23:23:45,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 23:23:45,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-01-31 23:23:45,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:45,496 INFO L225 Difference]: With dead ends: 121 [2022-01-31 23:23:45,496 INFO L226 Difference]: Without dead ends: 119 [2022-01-31 23:23:45,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-31 23:23:45,498 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 215 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:45,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 104 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:45,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-01-31 23:23:45,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2022-01-31 23:23:45,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 73 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2022-01-31 23:23:45,525 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2022-01-31 23:23:45,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:45,528 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2022-01-31 23:23:45,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:45,532 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2022-01-31 23:23:45,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-31 23:23:45,535 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:45,536 INFO L514 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] [2022-01-31 23:23:45,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 23:23:45,536 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:45,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:45,536 INFO L85 PathProgramCache]: Analyzing trace with hash 276133967, now seen corresponding path program 1 times [2022-01-31 23:23:45,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:45,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954565844] [2022-01-31 23:23:45,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:45,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:45,539 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:45,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:45,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:45,624 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:45,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954565844] [2022-01-31 23:23:45,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1954565844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:45,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:45,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:45,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785124418] [2022-01-31 23:23:45,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:45,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:45,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:45,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:45,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:45,626 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:45,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:45,761 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2022-01-31 23:23:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 23:23:45,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-01-31 23:23:45,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:45,762 INFO L225 Difference]: With dead ends: 77 [2022-01-31 23:23:45,762 INFO L226 Difference]: Without dead ends: 75 [2022-01-31 23:23:45,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-31 23:23:45,763 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 197 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:45,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 70 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:45,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-01-31 23:23:45,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-01-31 23:23:45,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 71 states have internal predecessors, (77), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:45,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2022-01-31 23:23:45,794 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2022-01-31 23:23:45,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:45,794 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2022-01-31 23:23:45,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:45,795 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2022-01-31 23:23:45,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-31 23:23:45,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:45,799 INFO L514 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] [2022-01-31 23:23:45,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 23:23:45,800 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:45,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:45,800 INFO L85 PathProgramCache]: Analyzing trace with hash -923129547, now seen corresponding path program 1 times [2022-01-31 23:23:45,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:45,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541852805] [2022-01-31 23:23:45,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:45,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:45,803 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:45,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:45,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:45,850 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:45,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541852805] [2022-01-31 23:23:45,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1541852805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:45,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:45,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:23:45,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355705034] [2022-01-31 23:23:45,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:45,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:23:45,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:45,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:23:45,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:23:45,852 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:45,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:45,942 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2022-01-31 23:23:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:23:45,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-01-31 23:23:45,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:45,943 INFO L225 Difference]: With dead ends: 115 [2022-01-31 23:23:45,943 INFO L226 Difference]: Without dead ends: 75 [2022-01-31 23:23:45,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:23:45,944 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 71 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:45,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 78 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:45,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-01-31 23:23:45,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-01-31 23:23:45,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 60 states have (on average 1.25) internal successors, (75), 71 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:45,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2022-01-31 23:23:45,960 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2022-01-31 23:23:45,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:45,960 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2022-01-31 23:23:45,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:45,960 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2022-01-31 23:23:45,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-31 23:23:45,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:45,961 INFO L514 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] [2022-01-31 23:23:45,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 23:23:45,961 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:45,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:45,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1988983653, now seen corresponding path program 1 times [2022-01-31 23:23:45,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:45,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656558924] [2022-01-31 23:23:45,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:45,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:45,963 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:46,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:46,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:46,022 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:46,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656558924] [2022-01-31 23:23:46,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1656558924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:46,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:46,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:46,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600308079] [2022-01-31 23:23:46,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:46,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:46,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:46,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:46,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:46,024 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:46,136 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2022-01-31 23:23:46,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 23:23:46,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-01-31 23:23:46,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:46,139 INFO L225 Difference]: With dead ends: 76 [2022-01-31 23:23:46,139 INFO L226 Difference]: Without dead ends: 74 [2022-01-31 23:23:46,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-31 23:23:46,140 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 183 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:46,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 62 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 23:23:46,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-01-31 23:23:46,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2022-01-31 23:23:46,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 69 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2022-01-31 23:23:46,157 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2022-01-31 23:23:46,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:46,158 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2022-01-31 23:23:46,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,158 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2022-01-31 23:23:46,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-31 23:23:46,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:46,159 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:23:46,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 23:23:46,160 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr16ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:46,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash 2054875672, now seen corresponding path program 1 times [2022-01-31 23:23:46,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:46,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155637942] [2022-01-31 23:23:46,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:46,175 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:23:46,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:46,177 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:46,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:46,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:46,221 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:46,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155637942] [2022-01-31 23:23:46,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1155637942] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:46,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:46,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:46,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015355721] [2022-01-31 23:23:46,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:46,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:46,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:46,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:46,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:46,222 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:46,375 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2022-01-31 23:23:46,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 23:23:46,376 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-01-31 23:23:46,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:46,377 INFO L225 Difference]: With dead ends: 111 [2022-01-31 23:23:46,377 INFO L226 Difference]: Without dead ends: 109 [2022-01-31 23:23:46,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-31 23:23:46,378 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 146 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:46,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 92 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:46,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-01-31 23:23:46,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2022-01-31 23:23:46,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 66 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2022-01-31 23:23:46,401 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2022-01-31 23:23:46,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:46,401 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2022-01-31 23:23:46,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,402 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2022-01-31 23:23:46,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-31 23:23:46,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:46,402 INFO L514 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] [2022-01-31 23:23:46,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 23:23:46,403 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr7ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:46,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:46,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1528947946, now seen corresponding path program 1 times [2022-01-31 23:23:46,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:46,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450235654] [2022-01-31 23:23:46,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:46,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:46,405 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:46,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:46,447 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:46,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450235654] [2022-01-31 23:23:46,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [450235654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:46,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:46,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:46,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378924494] [2022-01-31 23:23:46,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:46,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:46,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:46,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:46,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:46,449 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:46,540 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2022-01-31 23:23:46,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 23:23:46,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-01-31 23:23:46,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:46,541 INFO L225 Difference]: With dead ends: 70 [2022-01-31 23:23:46,542 INFO L226 Difference]: Without dead ends: 68 [2022-01-31 23:23:46,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-31 23:23:46,542 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 170 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:46,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 60 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 23:23:46,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-01-31 23:23:46,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-01-31 23:23:46,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 64 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2022-01-31 23:23:46,558 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2022-01-31 23:23:46,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:46,559 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2022-01-31 23:23:46,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,559 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2022-01-31 23:23:46,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-31 23:23:46,560 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:46,560 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:23:46,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 23:23:46,560 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:46,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:46,561 INFO L85 PathProgramCache]: Analyzing trace with hash -726812143, now seen corresponding path program 1 times [2022-01-31 23:23:46,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:46,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761921371] [2022-01-31 23:23:46,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:46,563 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:23:46,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:46,577 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:46,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:46,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:46,635 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:46,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761921371] [2022-01-31 23:23:46,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [761921371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:46,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:46,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:46,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096363937] [2022-01-31 23:23:46,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:46,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:46,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:46,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:46,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:46,636 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:46,730 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2022-01-31 23:23:46,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 23:23:46,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-01-31 23:23:46,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:46,731 INFO L225 Difference]: With dead ends: 69 [2022-01-31 23:23:46,731 INFO L226 Difference]: Without dead ends: 67 [2022-01-31 23:23:46,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-31 23:23:46,732 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 166 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:46,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 56 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 23:23:46,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-01-31 23:23:46,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2022-01-31 23:23:46,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 51 states have (on average 1.196078431372549) internal successors, (61), 58 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2022-01-31 23:23:46,749 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2022-01-31 23:23:46,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:46,749 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2022-01-31 23:23:46,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,750 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2022-01-31 23:23:46,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-31 23:23:46,750 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:46,750 INFO L514 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] [2022-01-31 23:23:46,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 23:23:46,750 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:46,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:46,751 INFO L85 PathProgramCache]: Analyzing trace with hash -756981884, now seen corresponding path program 1 times [2022-01-31 23:23:46,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:46,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019871946] [2022-01-31 23:23:46,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:46,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:46,753 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:46,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:46,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:46,813 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:46,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019871946] [2022-01-31 23:23:46,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1019871946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:46,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:46,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:46,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499161538] [2022-01-31 23:23:46,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:46,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:46,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:46,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:46,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:46,815 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:46,917 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2022-01-31 23:23:46,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 23:23:46,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-01-31 23:23:46,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:46,918 INFO L225 Difference]: With dead ends: 63 [2022-01-31 23:23:46,918 INFO L226 Difference]: Without dead ends: 61 [2022-01-31 23:23:46,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-31 23:23:46,918 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 119 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:46,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 59 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:46,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-01-31 23:23:46,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2022-01-31 23:23:46,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 50 states have (on average 1.18) internal successors, (59), 56 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2022-01-31 23:23:46,933 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2022-01-31 23:23:46,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:46,933 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2022-01-31 23:23:46,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:46,933 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2022-01-31 23:23:46,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-31 23:23:46,933 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:46,933 INFO L514 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] [2022-01-31 23:23:46,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 23:23:46,934 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:46,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:46,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1991598751, now seen corresponding path program 1 times [2022-01-31 23:23:46,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:46,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848031136] [2022-01-31 23:23:46,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:46,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:46,936 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:46,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:46,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:46,984 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:46,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848031136] [2022-01-31 23:23:46,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [848031136] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:46,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:46,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 23:23:46,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616359913] [2022-01-31 23:23:46,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:46,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 23:23:46,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:46,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 23:23:46,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-31 23:23:46,985 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:47,109 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2022-01-31 23:23:47,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 23:23:47,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-01-31 23:23:47,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:47,110 INFO L225 Difference]: With dead ends: 71 [2022-01-31 23:23:47,110 INFO L226 Difference]: Without dead ends: 69 [2022-01-31 23:23:47,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-31 23:23:47,112 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 177 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:47,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 57 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:47,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-01-31 23:23:47,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2022-01-31 23:23:47,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.163265306122449) internal successors, (57), 54 states have internal predecessors, (57), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2022-01-31 23:23:47,125 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2022-01-31 23:23:47,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:47,125 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2022-01-31 23:23:47,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,125 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2022-01-31 23:23:47,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-31 23:23:47,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:47,126 INFO L514 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] [2022-01-31 23:23:47,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 23:23:47,126 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:47,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:47,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1037071699, now seen corresponding path program 1 times [2022-01-31 23:23:47,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:47,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790508267] [2022-01-31 23:23:47,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:47,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:47,129 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:47,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:47,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:47,185 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:47,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790508267] [2022-01-31 23:23:47,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [790508267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:47,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:47,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:47,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025646757] [2022-01-31 23:23:47,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:47,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:47,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:47,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:47,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:47,186 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:47,396 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2022-01-31 23:23:47,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 23:23:47,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-01-31 23:23:47,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:47,397 INFO L225 Difference]: With dead ends: 91 [2022-01-31 23:23:47,397 INFO L226 Difference]: Without dead ends: 89 [2022-01-31 23:23:47,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-01-31 23:23:47,397 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 178 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:47,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 60 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:47,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-01-31 23:23:47,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2022-01-31 23:23:47,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.1538461538461537) internal successors, (60), 57 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2022-01-31 23:23:47,413 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2022-01-31 23:23:47,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:47,414 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2022-01-31 23:23:47,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,414 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2022-01-31 23:23:47,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-31 23:23:47,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:47,414 INFO L514 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] [2022-01-31 23:23:47,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 23:23:47,414 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr11ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:47,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:47,415 INFO L85 PathProgramCache]: Analyzing trace with hash -2084448405, now seen corresponding path program 1 times [2022-01-31 23:23:47,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:47,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484538720] [2022-01-31 23:23:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:47,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:47,417 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:47,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:47,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:47,491 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:47,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484538720] [2022-01-31 23:23:47,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [484538720] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:47,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:47,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:47,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552823623] [2022-01-31 23:23:47,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:47,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:47,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:47,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:47,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:47,493 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:47,637 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2022-01-31 23:23:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 23:23:47,637 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-01-31 23:23:47,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:47,638 INFO L225 Difference]: With dead ends: 61 [2022-01-31 23:23:47,638 INFO L226 Difference]: Without dead ends: 59 [2022-01-31 23:23:47,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-31 23:23:47,640 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 110 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:47,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 67 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:47,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-01-31 23:23:47,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-01-31 23:23:47,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 55 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2022-01-31 23:23:47,654 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2022-01-31 23:23:47,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:47,655 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2022-01-31 23:23:47,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2022-01-31 23:23:47,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-31 23:23:47,655 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:47,655 INFO L514 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] [2022-01-31 23:23:47,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 23:23:47,655 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr12ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:47,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:47,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1700057906, now seen corresponding path program 1 times [2022-01-31 23:23:47,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:47,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486915365] [2022-01-31 23:23:47,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:47,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:47,659 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:47,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:47,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:47,696 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:47,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486915365] [2022-01-31 23:23:47,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1486915365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:47,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:47,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:23:47,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509874264] [2022-01-31 23:23:47,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:47,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:23:47,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:47,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:23:47,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:23:47,697 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:47,808 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2022-01-31 23:23:47,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 23:23:47,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-01-31 23:23:47,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:47,809 INFO L225 Difference]: With dead ends: 70 [2022-01-31 23:23:47,809 INFO L226 Difference]: Without dead ends: 68 [2022-01-31 23:23:47,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-31 23:23:47,810 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 74 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:47,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 77 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:47,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-01-31 23:23:47,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2022-01-31 23:23:47,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 50 states have (on average 1.12) internal successors, (56), 53 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2022-01-31 23:23:47,824 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 41 [2022-01-31 23:23:47,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:47,824 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2022-01-31 23:23:47,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,824 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2022-01-31 23:23:47,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-31 23:23:47,824 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:47,824 INFO L514 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] [2022-01-31 23:23:47,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 23:23:47,825 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr13ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:47,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:47,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1162184327, now seen corresponding path program 1 times [2022-01-31 23:23:47,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:47,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805363666] [2022-01-31 23:23:47,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:47,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:47,827 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:47,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:47,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:47,862 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:47,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805363666] [2022-01-31 23:23:47,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [805363666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:47,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:47,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:47,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80168364] [2022-01-31 23:23:47,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:47,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:47,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:47,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:47,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:47,864 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:47,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:47,996 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2022-01-31 23:23:47,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 23:23:47,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-01-31 23:23:47,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:47,997 INFO L225 Difference]: With dead ends: 66 [2022-01-31 23:23:47,997 INFO L226 Difference]: Without dead ends: 64 [2022-01-31 23:23:47,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 23:23:47,998 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 91 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:47,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 74 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:47,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-01-31 23:23:48,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 55. [2022-01-31 23:23:48,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 51 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:48,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2022-01-31 23:23:48,013 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 42 [2022-01-31 23:23:48,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:48,013 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2022-01-31 23:23:48,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:48,013 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2022-01-31 23:23:48,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-31 23:23:48,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:48,013 INFO L514 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] [2022-01-31 23:23:48,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 23:23:48,014 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:48,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:48,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1667972556, now seen corresponding path program 1 times [2022-01-31 23:23:48,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:48,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1161126942] [2022-01-31 23:23:48,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:48,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:48,016 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:48,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:48,065 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:48,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1161126942] [2022-01-31 23:23:48,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1161126942] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:48,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:48,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:48,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123259529] [2022-01-31 23:23:48,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:48,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:48,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:48,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:48,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:48,066 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:48,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:48,301 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2022-01-31 23:23:48,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 23:23:48,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-01-31 23:23:48,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:48,302 INFO L225 Difference]: With dead ends: 88 [2022-01-31 23:23:48,302 INFO L226 Difference]: Without dead ends: 86 [2022-01-31 23:23:48,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-01-31 23:23:48,303 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 123 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:48,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 62 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:48,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-01-31 23:23:48,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 60. [2022-01-31 23:23:48,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 56 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2022-01-31 23:23:48,343 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 43 [2022-01-31 23:23:48,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:48,343 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2022-01-31 23:23:48,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:48,343 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2022-01-31 23:23:48,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-31 23:23:48,344 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:48,344 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:23:48,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 23:23:48,344 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:48,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:48,345 INFO L85 PathProgramCache]: Analyzing trace with hash 651621684, now seen corresponding path program 1 times [2022-01-31 23:23:48,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:48,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414598137] [2022-01-31 23:23:48,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:48,347 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:23:48,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:48,349 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:48,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:48,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:48,401 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:48,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414598137] [2022-01-31 23:23:48,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1414598137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:48,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:48,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:48,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181060051] [2022-01-31 23:23:48,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:48,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:48,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:48,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:48,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:48,403 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:48,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:48,502 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2022-01-31 23:23:48,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 23:23:48,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-01-31 23:23:48,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:48,503 INFO L225 Difference]: With dead ends: 60 [2022-01-31 23:23:48,504 INFO L226 Difference]: Without dead ends: 58 [2022-01-31 23:23:48,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-31 23:23:48,504 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 95 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:48,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 44 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 23:23:48,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-01-31 23:23:48,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-01-31 23:23:48,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.0943396226415094) internal successors, (58), 54 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:48,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2022-01-31 23:23:48,522 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 44 [2022-01-31 23:23:48,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:48,523 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2022-01-31 23:23:48,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:48,523 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2022-01-31 23:23:48,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-31 23:23:48,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:48,523 INFO L514 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] [2022-01-31 23:23:48,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 23:23:48,524 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:48,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:48,524 INFO L85 PathProgramCache]: Analyzing trace with hash -167538465, now seen corresponding path program 1 times [2022-01-31 23:23:48,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:48,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060002144] [2022-01-31 23:23:48,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:48,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:48,526 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:48,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:48,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:23:48,571 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:48,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060002144] [2022-01-31 23:23:48,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1060002144] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:48,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:48,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:23:48,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885257304] [2022-01-31 23:23:48,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:48,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:23:48,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:48,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:23:48,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:23:48,572 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:48,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:48,725 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2022-01-31 23:23:48,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 23:23:48,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-01-31 23:23:48,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:48,726 INFO L225 Difference]: With dead ends: 69 [2022-01-31 23:23:48,726 INFO L226 Difference]: Without dead ends: 67 [2022-01-31 23:23:48,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-31 23:23:48,728 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 73 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:48,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 65 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:23:48,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-01-31 23:23:48,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 56. [2022-01-31 23:23:48,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.0769230769230769) internal successors, (56), 52 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:48,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2022-01-31 23:23:48,742 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 44 [2022-01-31 23:23:48,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:48,742 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2022-01-31 23:23:48,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:48,742 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2022-01-31 23:23:48,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-31 23:23:48,743 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:48,743 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:23:48,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 23:23:48,743 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-01-31 23:23:48,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:48,743 INFO L85 PathProgramCache]: Analyzing trace with hash -799157235, now seen corresponding path program 1 times [2022-01-31 23:23:48,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:48,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336131596] [2022-01-31 23:23:48,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:48,755 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.logic.TermVariable cannot be cast to class de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm (de.uni_freiburg.informatik.ultimate.logic.TermVariable and de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @6c44052e) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.appTermToReal(QvasrAbstractor.java:1275) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.appTermToReal(QvasrAbstractor.java:1275) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.getUpdates(QvasrAbstractor.java:1240) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.computeAbstraction(QvasrAbstractor.java:106) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrSummarizer.summarizeLoop(QvasrSummarizer.java:133) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrLoopSummarization.getQvasrAcceleration(QvasrLoopSummarization.java:79) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorQvasr.accelerateLoop(AcceleratorQvasr.java:87) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:210) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-31 23:23:48,761 INFO L158 Benchmark]: Toolchain (without parser) took 6330.04ms. Allocated memory was 186.6MB in the beginning and 278.9MB in the end (delta: 92.3MB). Free memory was 131.1MB in the beginning and 167.0MB in the end (delta: -35.9MB). Peak memory consumption was 56.3MB. Max. memory is 8.0GB. [2022-01-31 23:23:48,761 INFO L158 Benchmark]: CDTParser took 2.99ms. Allocated memory is still 186.6MB. Free memory is still 148.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:23:48,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.74ms. Allocated memory was 186.6MB in the beginning and 231.7MB in the end (delta: 45.1MB). Free memory was 130.9MB in the beginning and 195.2MB in the end (delta: -64.3MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. [2022-01-31 23:23:48,762 INFO L158 Benchmark]: Boogie Preprocessor took 30.14ms. Allocated memory is still 231.7MB. Free memory was 195.2MB in the beginning and 193.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 23:23:48,762 INFO L158 Benchmark]: RCFGBuilder took 437.84ms. Allocated memory is still 231.7MB. Free memory was 193.6MB in the beginning and 176.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-01-31 23:23:48,763 INFO L158 Benchmark]: TraceAbstraction took 5567.21ms. Allocated memory was 231.7MB in the beginning and 278.9MB in the end (delta: 47.2MB). Free memory was 176.3MB in the beginning and 167.0MB in the end (delta: 9.3MB). Peak memory consumption was 57.5MB. Max. memory is 8.0GB. [2022-01-31 23:23:48,766 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.99ms. Allocated memory is still 186.6MB. Free memory is still 148.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 283.74ms. Allocated memory was 186.6MB in the beginning and 231.7MB in the end (delta: 45.1MB). Free memory was 130.9MB in the beginning and 195.2MB in the end (delta: -64.3MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.14ms. Allocated memory is still 231.7MB. Free memory was 195.2MB in the beginning and 193.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 437.84ms. Allocated memory is still 231.7MB. Free memory was 193.6MB in the beginning and 176.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 5567.21ms. Allocated memory was 231.7MB in the beginning and 278.9MB in the end (delta: 47.2MB). Free memory was 176.3MB in the beginning and 167.0MB in the end (delta: 9.3MB). Peak memory consumption was 57.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.logic.TermVariable cannot be cast to class de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm (de.uni_freiburg.informatik.ultimate.logic.TermVariable and de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @6c44052e) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ClassCastException: class de.uni_freiburg.informatik.ultimate.logic.TermVariable cannot be cast to class de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm (de.uni_freiburg.informatik.ultimate.logic.TermVariable and de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @6c44052e): de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.appTermToReal(QvasrAbstractor.java:1275) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-31 23:23:48,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...