/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 04:28:58,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 04:28:58,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 04:28:58,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 04:28:58,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 04:28:58,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 04:28:58,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 04:28:58,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 04:28:58,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 04:28:58,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 04:28:58,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 04:28:58,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 04:28:58,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 04:28:58,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 04:28:58,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 04:28:58,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 04:28:58,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 04:28:58,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 04:28:58,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 04:28:58,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 04:28:58,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 04:28:58,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 04:28:58,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 04:28:58,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 04:28:58,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 04:28:58,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 04:28:58,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 04:28:58,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 04:28:58,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 04:28:58,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 04:28:58,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 04:28:58,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 04:28:58,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 04:28:58,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 04:28:58,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 04:28:58,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 04:28:58,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 04:28:58,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 04:28:58,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 04:28:58,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 04:28:58,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 04:28:58,724 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 04:28:58,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 04:28:58,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 04:28:58,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 04:28:58,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 04:28:58,759 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 04:28:58,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 04:28:58,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 04:28:58,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 04:28:58,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 04:28:58,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 04:28:58,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 04:28:58,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 04:28:58,761 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 04:28:58,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 04:28:58,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 04:28:58,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 04:28:58,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 04:28:58,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 04:28:58,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 04:28:58,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 04:28:58,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 04:28:58,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 04:28:58,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 04:28:58,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 04:28:58,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 04:28:58,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 04:28:59,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 04:28:59,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 04:28:59,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 04:28:59,163 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 04:28:59,164 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 04:28:59,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-12-22 04:28:59,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/504bfd4ff/8094b256ff46495c9452cb62dbde6c6c/FLAG33539fcf8 [2020-12-22 04:28:59,833 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 04:28:59,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-12-22 04:28:59,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/504bfd4ff/8094b256ff46495c9452cb62dbde6c6c/FLAG33539fcf8 [2020-12-22 04:29:00,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/504bfd4ff/8094b256ff46495c9452cb62dbde6c6c [2020-12-22 04:29:00,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 04:29:00,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 04:29:00,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 04:29:00,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 04:29:00,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 04:29:00,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:29:00" (1/1) ... [2020-12-22 04:29:00,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388b2db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00, skipping insertion in model container [2020-12-22 04:29:00,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:29:00" (1/1) ... [2020-12-22 04:29:00,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 04:29:00,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 04:29:00,483 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2020-12-22 04:29:00,488 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2020-12-22 04:29:00,500 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2020-12-22 04:29:00,505 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2020-12-22 04:29:00,510 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2020-12-22 04:29:00,517 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2020-12-22 04:29:00,520 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2020-12-22 04:29:00,522 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2020-12-22 04:29:00,524 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2020-12-22 04:29:00,535 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2020-12-22 04:29:00,539 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2020-12-22 04:29:00,540 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2020-12-22 04:29:00,604 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2020-12-22 04:29:00,606 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2020-12-22 04:29:00,609 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2020-12-22 04:29:00,611 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2020-12-22 04:29:00,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:29:00,627 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 04:29:00,643 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2020-12-22 04:29:00,644 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2020-12-22 04:29:00,648 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2020-12-22 04:29:00,649 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2020-12-22 04:29:00,651 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2020-12-22 04:29:00,652 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2020-12-22 04:29:00,654 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2020-12-22 04:29:00,656 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2020-12-22 04:29:00,657 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2020-12-22 04:29:00,659 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2020-12-22 04:29:00,661 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2020-12-22 04:29:00,662 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2020-12-22 04:29:00,720 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2020-12-22 04:29:00,722 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2020-12-22 04:29:00,729 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2020-12-22 04:29:00,731 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2020-12-22 04:29:00,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:29:00,772 INFO L208 MainTranslator]: Completed translation [2020-12-22 04:29:00,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00 WrapperNode [2020-12-22 04:29:00,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 04:29:00,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 04:29:00,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 04:29:00,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 04:29:00,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00" (1/1) ... [2020-12-22 04:29:00,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00" (1/1) ... [2020-12-22 04:29:00,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 04:29:00,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 04:29:00,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 04:29:00,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 04:29:00,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00" (1/1) ... [2020-12-22 04:29:00,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00" (1/1) ... [2020-12-22 04:29:00,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00" (1/1) ... [2020-12-22 04:29:00,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00" (1/1) ... [2020-12-22 04:29:00,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00" (1/1) ... [2020-12-22 04:29:00,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00" (1/1) ... [2020-12-22 04:29:00,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00" (1/1) ... [2020-12-22 04:29:00,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 04:29:00,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 04:29:00,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 04:29:00,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 04:29:00,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 04:29:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 04:29:01,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 04:29:01,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 04:29:01,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 04:29:02,093 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 04:29:02,094 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 04:29:02,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:29:02 BoogieIcfgContainer [2020-12-22 04:29:02,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 04:29:02,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 04:29:02,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 04:29:02,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 04:29:02,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:29:00" (1/3) ... [2020-12-22 04:29:02,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4db1d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:29:02, skipping insertion in model container [2020-12-22 04:29:02,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:29:00" (2/3) ... [2020-12-22 04:29:02,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4db1d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:29:02, skipping insertion in model container [2020-12-22 04:29:02,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:29:02" (3/3) ... [2020-12-22 04:29:02,107 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2020-12-22 04:29:02,114 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 04:29:02,119 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-12-22 04:29:02,135 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-12-22 04:29:02,161 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 04:29:02,161 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 04:29:02,162 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 04:29:02,162 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 04:29:02,162 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 04:29:02,162 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 04:29:02,162 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 04:29:02,162 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 04:29:02,185 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2020-12-22 04:29:02,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 04:29:02,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:02,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:02,193 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:02,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:02,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1804934597, now seen corresponding path program 1 times [2020-12-22 04:29:02,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:02,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251828465] [2020-12-22 04:29:02,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:02,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:02,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251828465] [2020-12-22 04:29:02,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:02,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 04:29:02,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338969548] [2020-12-22 04:29:02,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:29:02,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:02,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:29:02,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:29:02,441 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 4 states. [2020-12-22 04:29:02,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:02,709 INFO L93 Difference]: Finished difference Result 131 states and 205 transitions. [2020-12-22 04:29:02,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:29:02,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-22 04:29:02,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:02,723 INFO L225 Difference]: With dead ends: 131 [2020-12-22 04:29:02,723 INFO L226 Difference]: Without dead ends: 114 [2020-12-22 04:29:02,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:29:02,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-12-22 04:29:02,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-12-22 04:29:02,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-12-22 04:29:02,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2020-12-22 04:29:02,795 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 7 [2020-12-22 04:29:02,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:02,795 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2020-12-22 04:29:02,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:29:02,796 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2020-12-22 04:29:02,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 04:29:02,796 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:02,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:02,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 04:29:02,797 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:02,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:02,798 INFO L82 PathProgramCache]: Analyzing trace with hash 118401710, now seen corresponding path program 1 times [2020-12-22 04:29:02,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:02,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945956974] [2020-12-22 04:29:02,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:02,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:02,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945956974] [2020-12-22 04:29:02,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:02,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 04:29:02,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465926159] [2020-12-22 04:29:02,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 04:29:02,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:02,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 04:29:02,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:29:02,894 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand 5 states. [2020-12-22 04:29:03,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:03,045 INFO L93 Difference]: Finished difference Result 114 states and 135 transitions. [2020-12-22 04:29:03,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:29:03,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-22 04:29:03,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:03,048 INFO L225 Difference]: With dead ends: 114 [2020-12-22 04:29:03,048 INFO L226 Difference]: Without dead ends: 109 [2020-12-22 04:29:03,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:29:03,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-12-22 04:29:03,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-12-22 04:29:03,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-12-22 04:29:03,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2020-12-22 04:29:03,060 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 8 [2020-12-22 04:29:03,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:03,060 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2020-12-22 04:29:03,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 04:29:03,061 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2020-12-22 04:29:03,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 04:29:03,061 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:03,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:03,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 04:29:03,062 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:03,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:03,063 INFO L82 PathProgramCache]: Analyzing trace with hash -639549266, now seen corresponding path program 1 times [2020-12-22 04:29:03,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:03,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592400901] [2020-12-22 04:29:03,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:03,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592400901] [2020-12-22 04:29:03,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:03,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 04:29:03,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221778017] [2020-12-22 04:29:03,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 04:29:03,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:03,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 04:29:03,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:29:03,146 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand 5 states. [2020-12-22 04:29:03,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:03,346 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2020-12-22 04:29:03,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:29:03,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-22 04:29:03,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:03,348 INFO L225 Difference]: With dead ends: 109 [2020-12-22 04:29:03,348 INFO L226 Difference]: Without dead ends: 107 [2020-12-22 04:29:03,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:29:03,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-22 04:29:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-12-22 04:29:03,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-22 04:29:03,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2020-12-22 04:29:03,357 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 11 [2020-12-22 04:29:03,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:03,357 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2020-12-22 04:29:03,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 04:29:03,358 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2020-12-22 04:29:03,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 04:29:03,358 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:03,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:03,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 04:29:03,359 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:03,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:03,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1648813321, now seen corresponding path program 1 times [2020-12-22 04:29:03,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:03,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33992940] [2020-12-22 04:29:03,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:03,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33992940] [2020-12-22 04:29:03,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:03,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 04:29:03,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282390130] [2020-12-22 04:29:03,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:29:03,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:03,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:29:03,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:29:03,410 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand 4 states. [2020-12-22 04:29:03,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:03,518 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2020-12-22 04:29:03,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:29:03,519 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-22 04:29:03,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:03,520 INFO L225 Difference]: With dead ends: 107 [2020-12-22 04:29:03,520 INFO L226 Difference]: Without dead ends: 103 [2020-12-22 04:29:03,520 INFO L677 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 [2020-12-22 04:29:03,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-12-22 04:29:03,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-12-22 04:29:03,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-22 04:29:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2020-12-22 04:29:03,527 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 12 [2020-12-22 04:29:03,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:03,528 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2020-12-22 04:29:03,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:29:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2020-12-22 04:29:03,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 04:29:03,529 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:03,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:03,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 04:29:03,529 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:03,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:03,530 INFO L82 PathProgramCache]: Analyzing trace with hash -411248735, now seen corresponding path program 1 times [2020-12-22 04:29:03,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:03,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453025775] [2020-12-22 04:29:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:03,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:03,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453025775] [2020-12-22 04:29:03,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:03,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 04:29:03,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277515542] [2020-12-22 04:29:03,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 04:29:03,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:03,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 04:29:03,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:29:03,598 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand 5 states. [2020-12-22 04:29:03,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:03,785 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2020-12-22 04:29:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:29:03,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 04:29:03,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:03,786 INFO L225 Difference]: With dead ends: 121 [2020-12-22 04:29:03,786 INFO L226 Difference]: Without dead ends: 119 [2020-12-22 04:29:03,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:29:03,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-22 04:29:03,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 101. [2020-12-22 04:29:03,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-22 04:29:03,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2020-12-22 04:29:03,794 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 13 [2020-12-22 04:29:03,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:03,794 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2020-12-22 04:29:03,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 04:29:03,795 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2020-12-22 04:29:03,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 04:29:03,795 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:03,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:03,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 04:29:03,796 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:03,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:03,797 INFO L82 PathProgramCache]: Analyzing trace with hash -409524831, now seen corresponding path program 1 times [2020-12-22 04:29:03,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:03,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956565354] [2020-12-22 04:29:03,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:03,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:03,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956565354] [2020-12-22 04:29:03,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:03,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 04:29:03,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328401879] [2020-12-22 04:29:03,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 04:29:03,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:03,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 04:29:03,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:29:03,847 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand 5 states. [2020-12-22 04:29:04,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:04,032 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2020-12-22 04:29:04,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:29:04,032 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 04:29:04,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:04,033 INFO L225 Difference]: With dead ends: 101 [2020-12-22 04:29:04,033 INFO L226 Difference]: Without dead ends: 99 [2020-12-22 04:29:04,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:29:04,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-22 04:29:04,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-12-22 04:29:04,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-22 04:29:04,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2020-12-22 04:29:04,039 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 13 [2020-12-22 04:29:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:04,039 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2020-12-22 04:29:04,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 04:29:04,040 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2020-12-22 04:29:04,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 04:29:04,040 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:04,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:04,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 04:29:04,041 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:04,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:04,042 INFO L82 PathProgramCache]: Analyzing trace with hash 136195212, now seen corresponding path program 1 times [2020-12-22 04:29:04,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:04,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415257503] [2020-12-22 04:29:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:04,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:04,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415257503] [2020-12-22 04:29:04,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:04,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 04:29:04,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786329181] [2020-12-22 04:29:04,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 04:29:04,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:04,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 04:29:04,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:29:04,157 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 6 states. [2020-12-22 04:29:04,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:04,403 INFO L93 Difference]: Finished difference Result 136 states and 152 transitions. [2020-12-22 04:29:04,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 04:29:04,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 04:29:04,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:04,405 INFO L225 Difference]: With dead ends: 136 [2020-12-22 04:29:04,405 INFO L226 Difference]: Without dead ends: 134 [2020-12-22 04:29:04,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 04:29:04,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-12-22 04:29:04,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 105. [2020-12-22 04:29:04,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-22 04:29:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2020-12-22 04:29:04,411 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 14 [2020-12-22 04:29:04,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:04,412 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2020-12-22 04:29:04,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 04:29:04,412 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2020-12-22 04:29:04,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 04:29:04,413 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:04,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:04,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 04:29:04,413 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:04,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:04,414 INFO L82 PathProgramCache]: Analyzing trace with hash 137742357, now seen corresponding path program 1 times [2020-12-22 04:29:04,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:04,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773527013] [2020-12-22 04:29:04,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:04,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773527013] [2020-12-22 04:29:04,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:04,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 04:29:04,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958933980] [2020-12-22 04:29:04,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 04:29:04,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:04,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 04:29:04,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:29:04,459 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 5 states. [2020-12-22 04:29:04,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:04,780 INFO L93 Difference]: Finished difference Result 126 states and 142 transitions. [2020-12-22 04:29:04,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:29:04,782 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-22 04:29:04,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:04,784 INFO L225 Difference]: With dead ends: 126 [2020-12-22 04:29:04,784 INFO L226 Difference]: Without dead ends: 124 [2020-12-22 04:29:04,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:29:04,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-12-22 04:29:04,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 103. [2020-12-22 04:29:04,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-22 04:29:04,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2020-12-22 04:29:04,789 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 14 [2020-12-22 04:29:04,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:04,789 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2020-12-22 04:29:04,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 04:29:04,790 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2020-12-22 04:29:04,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 04:29:04,790 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:04,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:04,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 04:29:04,791 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:04,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:04,791 INFO L82 PathProgramCache]: Analyzing trace with hash 189636292, now seen corresponding path program 1 times [2020-12-22 04:29:04,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:04,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842441492] [2020-12-22 04:29:04,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:04,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:04,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842441492] [2020-12-22 04:29:04,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:04,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 04:29:04,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674890308] [2020-12-22 04:29:04,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 04:29:04,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:04,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 04:29:04,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:29:04,924 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 6 states. [2020-12-22 04:29:05,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:05,118 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2020-12-22 04:29:05,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 04:29:05,119 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 04:29:05,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:05,120 INFO L225 Difference]: With dead ends: 113 [2020-12-22 04:29:05,120 INFO L226 Difference]: Without dead ends: 109 [2020-12-22 04:29:05,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 04:29:05,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-12-22 04:29:05,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2020-12-22 04:29:05,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-22 04:29:05,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2020-12-22 04:29:05,125 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 14 [2020-12-22 04:29:05,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:05,125 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2020-12-22 04:29:05,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 04:29:05,126 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2020-12-22 04:29:05,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 04:29:05,127 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:05,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:05,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 04:29:05,127 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:05,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:05,128 INFO L82 PathProgramCache]: Analyzing trace with hash -24950085, now seen corresponding path program 1 times [2020-12-22 04:29:05,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:05,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911762522] [2020-12-22 04:29:05,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:05,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:05,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911762522] [2020-12-22 04:29:05,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:05,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 04:29:05,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534294044] [2020-12-22 04:29:05,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 04:29:05,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:05,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 04:29:05,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:29:05,231 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 6 states. [2020-12-22 04:29:05,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:05,482 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2020-12-22 04:29:05,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 04:29:05,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-22 04:29:05,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:05,484 INFO L225 Difference]: With dead ends: 131 [2020-12-22 04:29:05,484 INFO L226 Difference]: Without dead ends: 129 [2020-12-22 04:29:05,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 04:29:05,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-12-22 04:29:05,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 107. [2020-12-22 04:29:05,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-22 04:29:05,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2020-12-22 04:29:05,489 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 15 [2020-12-22 04:29:05,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:05,490 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2020-12-22 04:29:05,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 04:29:05,490 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2020-12-22 04:29:05,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 04:29:05,491 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:05,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:05,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 04:29:05,491 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:05,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:05,492 INFO L82 PathProgramCache]: Analyzing trace with hash 2034707599, now seen corresponding path program 1 times [2020-12-22 04:29:05,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:05,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309442810] [2020-12-22 04:29:05,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:05,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309442810] [2020-12-22 04:29:05,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:05,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 04:29:05,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515596114] [2020-12-22 04:29:05,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:29:05,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:05,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:29:05,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:29:05,533 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 4 states. [2020-12-22 04:29:05,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:05,606 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2020-12-22 04:29:05,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:29:05,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-22 04:29:05,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:05,608 INFO L225 Difference]: With dead ends: 107 [2020-12-22 04:29:05,608 INFO L226 Difference]: Without dead ends: 105 [2020-12-22 04:29:05,608 INFO L677 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 [2020-12-22 04:29:05,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-12-22 04:29:05,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-12-22 04:29:05,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-22 04:29:05,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2020-12-22 04:29:05,613 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 16 [2020-12-22 04:29:05,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:05,613 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2020-12-22 04:29:05,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:29:05,613 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2020-12-22 04:29:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 04:29:05,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:05,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:05,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 04:29:05,615 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:05,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:05,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1348569745, now seen corresponding path program 1 times [2020-12-22 04:29:05,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:05,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719991733] [2020-12-22 04:29:05,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:05,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:05,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719991733] [2020-12-22 04:29:05,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:05,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 04:29:05,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194605967] [2020-12-22 04:29:05,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:29:05,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:05,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:29:05,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:29:05,671 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 4 states. [2020-12-22 04:29:05,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:05,806 INFO L93 Difference]: Finished difference Result 105 states and 119 transitions. [2020-12-22 04:29:05,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:29:05,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-22 04:29:05,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:05,808 INFO L225 Difference]: With dead ends: 105 [2020-12-22 04:29:05,808 INFO L226 Difference]: Without dead ends: 101 [2020-12-22 04:29:05,808 INFO L677 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 [2020-12-22 04:29:05,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-22 04:29:05,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-12-22 04:29:05,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-22 04:29:05,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-12-22 04:29:05,812 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 17 [2020-12-22 04:29:05,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:05,813 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-12-22 04:29:05,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:29:05,813 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-12-22 04:29:05,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 04:29:05,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:05,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:05,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 04:29:05,814 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:05,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:05,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1418456853, now seen corresponding path program 1 times [2020-12-22 04:29:05,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:05,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391718212] [2020-12-22 04:29:05,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:05,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391718212] [2020-12-22 04:29:05,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:05,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 04:29:05,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290497391] [2020-12-22 04:29:05,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 04:29:05,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:05,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 04:29:05,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:29:05,876 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 6 states. [2020-12-22 04:29:06,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:06,120 INFO L93 Difference]: Finished difference Result 116 states and 132 transitions. [2020-12-22 04:29:06,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 04:29:06,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-22 04:29:06,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:06,122 INFO L225 Difference]: With dead ends: 116 [2020-12-22 04:29:06,122 INFO L226 Difference]: Without dead ends: 114 [2020-12-22 04:29:06,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 04:29:06,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-12-22 04:29:06,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 97. [2020-12-22 04:29:06,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-22 04:29:06,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2020-12-22 04:29:06,128 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 18 [2020-12-22 04:29:06,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:06,128 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2020-12-22 04:29:06,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 04:29:06,129 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2020-12-22 04:29:06,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 04:29:06,129 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:06,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:06,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 04:29:06,130 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:06,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:06,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1471897933, now seen corresponding path program 1 times [2020-12-22 04:29:06,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:06,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780413686] [2020-12-22 04:29:06,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:06,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780413686] [2020-12-22 04:29:06,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:06,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 04:29:06,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209041481] [2020-12-22 04:29:06,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 04:29:06,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:06,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 04:29:06,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:29:06,209 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand 6 states. [2020-12-22 04:29:06,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:06,467 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2020-12-22 04:29:06,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:29:06,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-22 04:29:06,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:06,468 INFO L225 Difference]: With dead ends: 97 [2020-12-22 04:29:06,468 INFO L226 Difference]: Without dead ends: 93 [2020-12-22 04:29:06,470 INFO L677 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 [2020-12-22 04:29:06,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-22 04:29:06,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-12-22 04:29:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-22 04:29:06,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 107 transitions. [2020-12-22 04:29:06,475 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 107 transitions. Word has length 18 [2020-12-22 04:29:06,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:06,475 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 107 transitions. [2020-12-22 04:29:06,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 04:29:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2020-12-22 04:29:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 04:29:06,476 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:06,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:06,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 04:29:06,477 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:06,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:06,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1159129958, now seen corresponding path program 1 times [2020-12-22 04:29:06,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:06,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641482398] [2020-12-22 04:29:06,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:06,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:06,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641482398] [2020-12-22 04:29:06,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:06,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 04:29:06,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827724553] [2020-12-22 04:29:06,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 04:29:06,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:06,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 04:29:06,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:29:06,562 INFO L87 Difference]: Start difference. First operand 93 states and 107 transitions. Second operand 6 states. [2020-12-22 04:29:06,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:06,830 INFO L93 Difference]: Finished difference Result 103 states and 119 transitions. [2020-12-22 04:29:06,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 04:29:06,831 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-22 04:29:06,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:06,831 INFO L225 Difference]: With dead ends: 103 [2020-12-22 04:29:06,831 INFO L226 Difference]: Without dead ends: 54 [2020-12-22 04:29:06,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 04:29:06,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-22 04:29:06,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-12-22 04:29:06,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-22 04:29:06,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2020-12-22 04:29:06,835 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 18 [2020-12-22 04:29:06,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:06,835 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2020-12-22 04:29:06,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 04:29:06,835 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2020-12-22 04:29:06,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 04:29:06,836 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:06,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:06,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 04:29:06,837 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:06,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:06,837 INFO L82 PathProgramCache]: Analyzing trace with hash 892497877, now seen corresponding path program 1 times [2020-12-22 04:29:06,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:06,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944224602] [2020-12-22 04:29:06,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:06,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:06,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944224602] [2020-12-22 04:29:06,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:06,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-22 04:29:06,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224375896] [2020-12-22 04:29:06,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 04:29:06,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:06,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 04:29:06,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-12-22 04:29:06,987 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 13 states. [2020-12-22 04:29:07,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:07,128 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2020-12-22 04:29:07,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 04:29:07,128 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-12-22 04:29:07,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:07,129 INFO L225 Difference]: With dead ends: 54 [2020-12-22 04:29:07,129 INFO L226 Difference]: Without dead ends: 52 [2020-12-22 04:29:07,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-12-22 04:29:07,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-22 04:29:07,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-22 04:29:07,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-22 04:29:07,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2020-12-22 04:29:07,132 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 44 [2020-12-22 04:29:07,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:07,132 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2020-12-22 04:29:07,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 04:29:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2020-12-22 04:29:07,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 04:29:07,133 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:07,134 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:07,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 04:29:07,134 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:07,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:07,134 INFO L82 PathProgramCache]: Analyzing trace with hash 892513765, now seen corresponding path program 1 times [2020-12-22 04:29:07,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:07,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757711622] [2020-12-22 04:29:07,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:07,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:07,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757711622] [2020-12-22 04:29:07,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:07,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-22 04:29:07,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584210211] [2020-12-22 04:29:07,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 04:29:07,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:07,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 04:29:07,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-12-22 04:29:07,284 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 13 states. [2020-12-22 04:29:07,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:07,429 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2020-12-22 04:29:07,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 04:29:07,430 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-12-22 04:29:07,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:07,431 INFO L225 Difference]: With dead ends: 59 [2020-12-22 04:29:07,431 INFO L226 Difference]: Without dead ends: 57 [2020-12-22 04:29:07,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-12-22 04:29:07,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-22 04:29:07,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-12-22 04:29:07,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-22 04:29:07,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2020-12-22 04:29:07,434 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 44 [2020-12-22 04:29:07,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:07,434 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2020-12-22 04:29:07,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 04:29:07,434 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2020-12-22 04:29:07,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 04:29:07,435 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:07,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:07,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 04:29:07,435 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:07,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:07,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1897634854, now seen corresponding path program 1 times [2020-12-22 04:29:07,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:07,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790756455] [2020-12-22 04:29:07,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:07,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:07,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790756455] [2020-12-22 04:29:07,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:07,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 04:29:07,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738881684] [2020-12-22 04:29:07,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 04:29:07,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:07,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 04:29:07,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 04:29:07,554 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 7 states. [2020-12-22 04:29:07,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:07,662 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-12-22 04:29:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:29:07,663 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-12-22 04:29:07,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:07,664 INFO L225 Difference]: With dead ends: 50 [2020-12-22 04:29:07,664 INFO L226 Difference]: Without dead ends: 46 [2020-12-22 04:29:07,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 04:29:07,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-22 04:29:07,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-12-22 04:29:07,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-22 04:29:07,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2020-12-22 04:29:07,667 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 45 [2020-12-22 04:29:07,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:07,667 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2020-12-22 04:29:07,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 04:29:07,668 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2020-12-22 04:29:07,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 04:29:07,668 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:29:07,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:29:07,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 04:29:07,669 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:29:07,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:29:07,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1898127398, now seen corresponding path program 1 times [2020-12-22 04:29:07,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:29:07,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829952615] [2020-12-22 04:29:07,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:29:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:29:07,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:29:07,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829952615] [2020-12-22 04:29:07,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:29:07,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 04:29:07,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674225032] [2020-12-22 04:29:07,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 04:29:07,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:29:07,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 04:29:07,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 04:29:07,781 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 7 states. [2020-12-22 04:29:07,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:29:07,893 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-12-22 04:29:07,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 04:29:07,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-12-22 04:29:07,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:29:07,894 INFO L225 Difference]: With dead ends: 50 [2020-12-22 04:29:07,894 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 04:29:07,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 04:29:07,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 04:29:07,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 04:29:07,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 04:29:07,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 04:29:07,899 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-12-22 04:29:07,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:29:07,899 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 04:29:07,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 04:29:07,900 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 04:29:07,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 04:29:07,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 04:29:07,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 04:29:08,085 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2020-12-22 04:29:08,085 INFO L189 CegarLoopUtils]: For program point L217(lines 217 229) no Hoare annotation was computed. [2020-12-22 04:29:08,085 INFO L189 CegarLoopUtils]: For program point L597(lines 597 969) no Hoare annotation was computed. [2020-12-22 04:29:08,086 INFO L189 CegarLoopUtils]: For program point L366(lines 366 991) no Hoare annotation was computed. [2020-12-22 04:29:08,086 INFO L189 CegarLoopUtils]: For program point L267(lines 267 275) no Hoare annotation was computed. [2020-12-22 04:29:08,086 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 883) no Hoare annotation was computed. [2020-12-22 04:29:08,086 INFO L189 CegarLoopUtils]: For program point L581(lines 581 971) no Hoare annotation was computed. [2020-12-22 04:29:08,086 INFO L189 CegarLoopUtils]: For program point L36(line 36) no Hoare annotation was computed. [2020-12-22 04:29:08,086 INFO L189 CegarLoopUtils]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-22 04:29:08,086 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 04:29:08,086 INFO L189 CegarLoopUtils]: For program point L317(lines 317 994) no Hoare annotation was computed. [2020-12-22 04:29:08,086 INFO L189 CegarLoopUtils]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-22 04:29:08,086 INFO L189 CegarLoopUtils]: For program point L400(lines 400 424) no Hoare annotation was computed. [2020-12-22 04:29:08,086 INFO L189 CegarLoopUtils]: For program point L136(lines 136 242) no Hoare annotation was computed. [2020-12-22 04:29:08,086 INFO L189 CegarLoopUtils]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-12-22 04:29:08,087 INFO L189 CegarLoopUtils]: For program point L615(lines 615 626) no Hoare annotation was computed. [2020-12-22 04:29:08,087 INFO L189 CegarLoopUtils]: For program point L929(lines 929 941) no Hoare annotation was computed. [2020-12-22 04:29:08,087 INFO L189 CegarLoopUtils]: For program point L219(line 219) no Hoare annotation was computed. [2020-12-22 04:29:08,087 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 269) no Hoare annotation was computed. [2020-12-22 04:29:08,087 INFO L189 CegarLoopUtils]: For program point L665(lines 665 963) no Hoare annotation was computed. [2020-12-22 04:29:08,087 INFO L189 CegarLoopUtils]: For program point L434(lines 434 985) no Hoare annotation was computed. [2020-12-22 04:29:08,087 INFO L189 CegarLoopUtils]: For program point L269(line 269) no Hoare annotation was computed. [2020-12-22 04:29:08,087 INFO L189 CegarLoopUtils]: For program point L649(lines 649 965) no Hoare annotation was computed. [2020-12-22 04:29:08,087 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2020-12-22 04:29:08,087 INFO L189 CegarLoopUtils]: For program point L385(lines 385 988) no Hoare annotation was computed. [2020-12-22 04:29:08,087 INFO L189 CegarLoopUtils]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L468(lines 468 492) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L881(lines 881 907) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L683(lines 683 694) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L105(line 105) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L72(lines 72 288) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L931(line 931) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L733(lines 733 957) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L155(lines 155 234) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L502(lines 502 979) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L205(lines 205 231) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L717(lines 717 959) no Hoare annotation was computed. [2020-12-22 04:29:08,088 INFO L189 CegarLoopUtils]: For program point L453(lines 453 982) no Hoare annotation was computed. [2020-12-22 04:29:08,089 INFO L192 CegarLoopUtils]: At program point L932(lines 17 1006) the Hoare annotation is: true [2020-12-22 04:29:08,089 INFO L189 CegarLoopUtils]: For program point L866(lines 866 946) no Hoare annotation was computed. [2020-12-22 04:29:08,089 INFO L189 CegarLoopUtils]: For program point L255(lines 255 277) no Hoare annotation was computed. [2020-12-22 04:29:08,089 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 207) no Hoare annotation was computed. [2020-12-22 04:29:08,089 INFO L189 CegarLoopUtils]: For program point L536(lines 536 560) no Hoare annotation was computed. [2020-12-22 04:29:08,089 INFO L189 CegarLoopUtils]: For program point L883(line 883) no Hoare annotation was computed. [2020-12-22 04:29:08,089 INFO L189 CegarLoopUtils]: For program point L751(lines 751 762) no Hoare annotation was computed. [2020-12-22 04:29:08,089 INFO L189 CegarLoopUtils]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-22 04:29:08,089 INFO L189 CegarLoopUtils]: For program point L801(lines 801 951) no Hoare annotation was computed. [2020-12-22 04:29:08,090 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 04:29:08,090 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2020-12-22 04:29:08,090 INFO L189 CegarLoopUtils]: For program point L157(line 157) no Hoare annotation was computed. [2020-12-22 04:29:08,090 INFO L189 CegarLoopUtils]: For program point L570(lines 570 973) no Hoare annotation was computed. [2020-12-22 04:29:08,090 INFO L189 CegarLoopUtils]: For program point L917(lines 917 943) no Hoare annotation was computed. [2020-12-22 04:29:08,090 INFO L189 CegarLoopUtils]: For program point L785(lines 785 953) no Hoare annotation was computed. [2020-12-22 04:29:08,090 INFO L189 CegarLoopUtils]: For program point L207(line 207) no Hoare annotation was computed. [2020-12-22 04:29:08,090 INFO L189 CegarLoopUtils]: For program point L521(lines 521 976) no Hoare annotation was computed. [2020-12-22 04:29:08,090 INFO L185 CegarLoopUtils]: At program point L868(lines 26 1000) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-12-22 04:29:08,090 INFO L189 CegarLoopUtils]: For program point L257(line 257) no Hoare annotation was computed. [2020-12-22 04:29:08,091 INFO L189 CegarLoopUtils]: For program point L604(lines 604 628) no Hoare annotation was computed. [2020-12-22 04:29:08,091 INFO L189 CegarLoopUtils]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2020-12-22 04:29:08,091 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2020-12-22 04:29:08,091 INFO L189 CegarLoopUtils]: For program point L819(lines 819 830) no Hoare annotation was computed. [2020-12-22 04:29:08,091 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 895) no Hoare annotation was computed. [2020-12-22 04:29:08,091 INFO L189 CegarLoopUtils]: For program point L638(lines 638 967) no Hoare annotation was computed. [2020-12-22 04:29:08,091 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2020-12-22 04:29:08,091 INFO L189 CegarLoopUtils]: For program point L919(line 919) no Hoare annotation was computed. [2020-12-22 04:29:08,091 INFO L189 CegarLoopUtils]: For program point L853(lines 853 947) no Hoare annotation was computed. [2020-12-22 04:29:08,091 INFO L189 CegarLoopUtils]: For program point L143(lines 143 236) no Hoare annotation was computed. [2020-12-22 04:29:08,092 INFO L189 CegarLoopUtils]: For program point L589(lines 589 970) no Hoare annotation was computed. [2020-12-22 04:29:08,092 INFO L189 CegarLoopUtils]: For program point L325(lines 325 993) no Hoare annotation was computed. [2020-12-22 04:29:08,092 INFO L189 CegarLoopUtils]: For program point L672(lines 672 696) no Hoare annotation was computed. [2020-12-22 04:29:08,092 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2020-12-22 04:29:08,092 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 04:29:08,092 INFO L189 CegarLoopUtils]: For program point L309(lines 309 995) no Hoare annotation was computed. [2020-12-22 04:29:08,092 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 931) no Hoare annotation was computed. [2020-12-22 04:29:08,092 INFO L185 CegarLoopUtils]: At program point L904(lines 65 999) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-12-22 04:29:08,092 INFO L189 CegarLoopUtils]: For program point L706(lines 706 961) no Hoare annotation was computed. [2020-12-22 04:29:08,093 INFO L189 CegarLoopUtils]: For program point L343(lines 343 354) no Hoare annotation was computed. [2020-12-22 04:29:08,093 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 117) no Hoare annotation was computed. [2020-12-22 04:29:08,093 INFO L189 CegarLoopUtils]: For program point L145(line 145) no Hoare annotation was computed. [2020-12-22 04:29:08,093 INFO L189 CegarLoopUtils]: For program point L657(lines 657 964) no Hoare annotation was computed. [2020-12-22 04:29:08,093 INFO L189 CegarLoopUtils]: For program point L46(lines 46 56) no Hoare annotation was computed. [2020-12-22 04:29:08,093 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 919) no Hoare annotation was computed. [2020-12-22 04:29:08,093 INFO L192 CegarLoopUtils]: At program point L1004(lines 22 1005) the Hoare annotation is: true [2020-12-22 04:29:08,093 INFO L189 CegarLoopUtils]: For program point L393(lines 393 987) no Hoare annotation was computed. [2020-12-22 04:29:08,093 INFO L189 CegarLoopUtils]: For program point L740(lines 740 764) no Hoare annotation was computed. [2020-12-22 04:29:08,093 INFO L189 CegarLoopUtils]: For program point L96(lines 96 285) no Hoare annotation was computed. [2020-12-22 04:29:08,094 INFO L189 CegarLoopUtils]: For program point L377(lines 377 989) no Hoare annotation was computed. [2020-12-22 04:29:08,094 INFO L189 CegarLoopUtils]: For program point L774(lines 774 955) no Hoare annotation was computed. [2020-12-22 04:29:08,094 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2020-12-22 04:29:08,094 INFO L189 CegarLoopUtils]: For program point L411(lines 411 422) no Hoare annotation was computed. [2020-12-22 04:29:08,094 INFO L189 CegarLoopUtils]: For program point L725(lines 725 958) no Hoare annotation was computed. [2020-12-22 04:29:08,094 INFO L189 CegarLoopUtils]: For program point L48(line 48) no Hoare annotation was computed. [2020-12-22 04:29:08,094 INFO L189 CegarLoopUtils]: For program point L461(lines 461 981) no Hoare annotation was computed. [2020-12-22 04:29:08,094 INFO L185 CegarLoopUtils]: At program point L940(lines 858 947) the Hoare annotation is: (and (<= 9 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-12-22 04:29:08,094 INFO L189 CegarLoopUtils]: For program point L874(lines 874 945) no Hoare annotation was computed. [2020-12-22 04:29:08,095 INFO L189 CegarLoopUtils]: For program point L808(lines 808 832) no Hoare annotation was computed. [2020-12-22 04:29:08,095 INFO L189 CegarLoopUtils]: For program point L164(lines 164 233) no Hoare annotation was computed. [2020-12-22 04:29:08,095 INFO L189 CegarLoopUtils]: For program point L65(lines 65 999) no Hoare annotation was computed. [2020-12-22 04:29:08,095 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 04:29:08,095 INFO L189 CegarLoopUtils]: For program point L445(lines 445 983) no Hoare annotation was computed. [2020-12-22 04:29:08,095 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2020-12-22 04:29:08,095 INFO L189 CegarLoopUtils]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-12-22 04:29:08,095 INFO L189 CegarLoopUtils]: For program point L842(lines 842 949) no Hoare annotation was computed. [2020-12-22 04:29:08,095 INFO L189 CegarLoopUtils]: For program point L132(lines 132 284) no Hoare annotation was computed. [2020-12-22 04:29:08,095 INFO L189 CegarLoopUtils]: For program point L479(lines 479 490) no Hoare annotation was computed. [2020-12-22 04:29:08,095 INFO L189 CegarLoopUtils]: For program point L793(lines 793 952) no Hoare annotation was computed. [2020-12-22 04:29:08,095 INFO L189 CegarLoopUtils]: For program point L248(lines 248 283) no Hoare annotation was computed. [2020-12-22 04:29:08,096 INFO L189 CegarLoopUtils]: For program point L83(lines 83 286) no Hoare annotation was computed. [2020-12-22 04:29:08,096 INFO L189 CegarLoopUtils]: For program point L529(lines 529 975) no Hoare annotation was computed. [2020-12-22 04:29:08,096 INFO L189 CegarLoopUtils]: For program point L298(lines 298 997) no Hoare annotation was computed. [2020-12-22 04:29:08,096 INFO L189 CegarLoopUtils]: For program point L34(lines 34 58) no Hoare annotation was computed. [2020-12-22 04:29:08,096 INFO L189 CegarLoopUtils]: For program point L513(lines 513 977) no Hoare annotation was computed. [2020-12-22 04:29:08,096 INFO L189 CegarLoopUtils]: For program point L893(lines 893 905) no Hoare annotation was computed. [2020-12-22 04:29:08,096 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2020-12-22 04:29:08,096 INFO L185 CegarLoopUtils]: At program point L282(lines 132 284) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 1 ULTIMATE.start_main_~main__t~0)) [2020-12-22 04:29:08,096 INFO L189 CegarLoopUtils]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-12-22 04:29:08,096 INFO L189 CegarLoopUtils]: For program point L117(line 117) no Hoare annotation was computed. [2020-12-22 04:29:08,097 INFO L189 CegarLoopUtils]: For program point L332(lines 332 356) no Hoare annotation was computed. [2020-12-22 04:29:08,097 INFO L189 CegarLoopUtils]: For program point L547(lines 547 558) no Hoare annotation was computed. [2020-12-22 04:29:08,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 04:29:08 BoogieIcfgContainer [2020-12-22 04:29:08,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 04:29:08,115 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 04:29:08,115 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 04:29:08,116 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 04:29:08,116 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:29:02" (3/4) ... [2020-12-22 04:29:08,119 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 04:29:08,138 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-22 04:29:08,139 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 04:29:08,140 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:29:08,141 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:29:08,287 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c-witness.graphml [2020-12-22 04:29:08,287 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 04:29:08,289 INFO L168 Benchmark]: Toolchain (without parser) took 8102.69 ms. Allocated memory was 151.0 MB in the beginning and 253.8 MB in the end (delta: 102.8 MB). Free memory was 125.9 MB in the beginning and 227.4 MB in the end (delta: -101.5 MB). Peak memory consumption was 141.6 MB. Max. memory is 8.0 GB. [2020-12-22 04:29:08,289 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 04:29:08,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 585.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 103.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:29:08,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.03 ms. Allocated memory is still 151.0 MB. Free memory was 103.5 MB in the beginning and 100.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 04:29:08,290 INFO L168 Benchmark]: Boogie Preprocessor took 76.31 ms. Allocated memory is still 151.0 MB. Free memory was 100.4 MB in the beginning and 98.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 04:29:08,290 INFO L168 Benchmark]: RCFGBuilder took 1170.88 ms. Allocated memory is still 151.0 MB. Free memory was 98.3 MB in the beginning and 99.6 MB in the end (delta: -1.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. [2020-12-22 04:29:08,291 INFO L168 Benchmark]: TraceAbstraction took 6016.16 ms. Allocated memory was 151.0 MB in the beginning and 253.8 MB in the end (delta: 102.8 MB). Free memory was 99.1 MB in the beginning and 94.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 108.5 MB. Max. memory is 8.0 GB. [2020-12-22 04:29:08,291 INFO L168 Benchmark]: Witness Printer took 171.56 ms. Allocated memory is still 253.8 MB. Free memory was 94.9 MB in the beginning and 227.4 MB in the end (delta: -132.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-12-22 04:29:08,293 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 585.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 103.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 74.03 ms. Allocated memory is still 151.0 MB. Free memory was 103.5 MB in the beginning and 100.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 76.31 ms. Allocated memory is still 151.0 MB. Free memory was 100.4 MB in the beginning and 98.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1170.88 ms. Allocated memory is still 151.0 MB. Free memory was 98.3 MB in the beginning and 99.6 MB in the end (delta: -1.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6016.16 ms. Allocated memory was 151.0 MB in the beginning and 253.8 MB in the end (delta: 102.8 MB). Free memory was 99.1 MB in the beginning and 94.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 108.5 MB. Max. memory is 8.0 GB. * Witness Printer took 171.56 ms. Allocated memory is still 253.8 MB. Free memory was 94.9 MB in the beginning and 227.4 MB in the end (delta: -132.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 207]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 931]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 117]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 36]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 105]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 883]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 145]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 157]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 257]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 919]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 895]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 269]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 219]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 9 <= main__t && main__t <= main__tagbuf_len - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.7s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1038 SDtfs, 1861 SDslu, 1369 SDs, 0 SdLazy, 3328 SolverSat, 407 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 119 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 16 NumberOfFragments, 30 HoareAnnotationTreeSize, 6 FomulaSimplifications, 4032 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 325 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 386 NumberOfCodeBlocks, 386 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 367 ConstructedInterpolants, 0 QuantifiedInterpolants, 31849 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...