./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:29:00,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:29:00,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:29:00,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:29:00,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:29:00,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:29:00,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:29:00,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:29:00,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:29:00,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:29:00,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:29:00,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:29:00,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:29:00,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:29:00,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:29:00,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:29:00,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:29:00,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:29:00,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:29:00,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:29:00,786 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:29:00,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:29:00,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:29:00,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:29:00,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:29:00,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:29:00,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:29:00,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:29:00,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:29:00,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:29:00,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:29:00,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:29:00,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:29:00,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:29:00,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:29:00,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:29:00,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:29:00,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:29:00,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:29:00,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:29:00,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:29:00,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:29:00,807 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-13 03:29:00,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:29:00,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:29:00,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:29:00,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:29:00,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:29:00,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:29:00,845 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:29:00,845 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:29:00,846 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:29:00,846 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:29:00,846 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:29:00,847 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:29:00,847 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:29:00,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:29:00,847 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 03:29:00,847 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:29:00,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:29:00,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 03:29:00,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:29:00,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:29:00,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:29:00,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:29:00,849 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 03:29:00,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:29:00,849 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:29:00,849 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:29:00,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:29:00,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:29:00,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:29:00,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:29:00,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:29:00,852 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:29:00,852 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db [2022-07-13 03:29:01,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:29:01,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:29:01,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:29:01,123 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:29:01,124 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:29:01,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2022-07-13 03:29:01,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af9efc4d7/38ca2bade1c54d7f8b77fa87fc680cf1/FLAG02c5f9cfb [2022-07-13 03:29:01,646 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:29:01,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2022-07-13 03:29:01,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af9efc4d7/38ca2bade1c54d7f8b77fa87fc680cf1/FLAG02c5f9cfb [2022-07-13 03:29:01,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af9efc4d7/38ca2bade1c54d7f8b77fa87fc680cf1 [2022-07-13 03:29:01,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:29:01,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:29:01,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:29:01,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:29:01,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:29:01,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:29:01" (1/1) ... [2022-07-13 03:29:01,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef6b588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01, skipping insertion in model container [2022-07-13 03:29:01,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:29:01" (1/1) ... [2022-07-13 03:29:01,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:29:01,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:29:01,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c[8244,8257] [2022-07-13 03:29:01,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:29:01,923 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:29:01,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c[8244,8257] [2022-07-13 03:29:01,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:29:01,970 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:29:01,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01 WrapperNode [2022-07-13 03:29:01,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:29:01,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:29:01,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:29:01,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:29:01,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01" (1/1) ... [2022-07-13 03:29:01,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01" (1/1) ... [2022-07-13 03:29:02,003 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-07-13 03:29:02,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:29:02,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:29:02,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:29:02,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:29:02,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01" (1/1) ... [2022-07-13 03:29:02,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01" (1/1) ... [2022-07-13 03:29:02,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01" (1/1) ... [2022-07-13 03:29:02,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01" (1/1) ... [2022-07-13 03:29:02,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01" (1/1) ... [2022-07-13 03:29:02,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01" (1/1) ... [2022-07-13 03:29:02,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01" (1/1) ... [2022-07-13 03:29:02,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:29:02,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:29:02,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:29:02,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:29:02,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01" (1/1) ... [2022-07-13 03:29:02,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:02,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:02,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:02,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-13 03:29:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 03:29:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 03:29:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:29:02,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:29:02,182 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:29:02,183 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:29:02,343 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:29:02,348 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:29:02,349 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 03:29:02,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:29:02 BoogieIcfgContainer [2022-07-13 03:29:02,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:29:02,351 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:29:02,352 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:29:02,354 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:29:02,376 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:29:02,376 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:29:01" (1/3) ... [2022-07-13 03:29:02,377 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bd3d9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:29:02, skipping insertion in model container [2022-07-13 03:29:02,377 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:29:02,377 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:29:01" (2/3) ... [2022-07-13 03:29:02,378 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bd3d9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:29:02, skipping insertion in model container [2022-07-13 03:29:02,378 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:29:02,378 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:29:02" (3/3) ... [2022-07-13 03:29:02,379 INFO L354 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2022-07-13 03:29:02,441 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:29:02,441 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:29:02,441 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:29:02,441 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:29:02,441 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:29:02,442 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:29:02,442 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:29:02,442 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:29:02,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:02,463 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-07-13 03:29:02,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:29:02,464 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:29:02,470 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:29:02,470 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-13 03:29:02,470 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:29:02,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:02,475 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-07-13 03:29:02,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:29:02,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:29:02,476 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:29:02,476 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-13 03:29:02,482 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 6#L111true [2022-07-13 03:29:02,483 INFO L754 eck$LassoCheckResult]: Loop: 6#L111true assume !false; 4#L30true assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 12#L36true assume 8466 == main_~s__state~0#1; 14#L37true assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 17#L69-1true assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 6#L111true [2022-07-13 03:29:02,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:02,496 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-13 03:29:02,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:02,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421986344] [2022-07-13 03:29:02,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:02,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:02,590 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:02,625 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:02,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:02,628 INFO L85 PathProgramCache]: Analyzing trace with hash 39284085, now seen corresponding path program 1 times [2022-07-13 03:29:02,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:02,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590067290] [2022-07-13 03:29:02,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:02,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:02,641 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:02,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:02,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:02,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723571, now seen corresponding path program 1 times [2022-07-13 03:29:02,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:02,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531529308] [2022-07-13 03:29:02,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:02,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:02,659 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:02,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:02,762 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:29:02,763 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:29:02,763 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:29:02,763 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:29:02,763 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:29:02,764 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:02,764 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:29:02,764 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:29:02,764 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2022-07-13 03:29:02,764 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:29:02,764 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:29:02,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:02,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:02,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:02,871 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:29:02,872 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:29:02,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:02,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:02,885 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:02,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:29:02,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:02,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-13 03:29:02,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-13 03:29:02,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:02,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:02,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:02,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:29:02,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:02,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-13 03:29:03,004 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:29:03,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:03,030 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:29:03,030 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:29:03,030 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:29:03,030 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:29:03,030 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:29:03,030 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:03,030 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:29:03,030 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:29:03,031 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2022-07-13 03:29:03,031 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:29:03,031 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:29:03,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:03,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:03,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:03,098 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:29:03,102 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:29:03,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:03,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:03,108 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:03,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-13 03:29:03,112 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:29:03,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:29:03,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:29:03,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:29:03,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:29:03,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:29:03,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:29:03,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:29:03,138 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:29:03,145 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:29:03,145 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:29:03,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:03,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:03,150 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:03,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-13 03:29:03,184 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:29:03,184 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:29:03,185 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:29:03,185 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~blastFlag~0#1) = -1*ULTIMATE.start_main_~blastFlag~0#1 + 1 Supporting invariants [] [2022-07-13 03:29:03,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:03,204 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:29:03,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:03,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:29:03,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:29:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:03,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:29:03,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:29:03,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:03,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:03,395 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:29:03,396 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:03,447 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 52 states and 84 transitions. Complement of second has 5 states. [2022-07-13 03:29:03,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:29:03,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:03,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2022-07-13 03:29:03,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 46 transitions. Stem has 2 letters. Loop has 5 letters. [2022-07-13 03:29:03,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:03,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 46 transitions. Stem has 7 letters. Loop has 5 letters. [2022-07-13 03:29:03,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:03,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 46 transitions. Stem has 2 letters. Loop has 10 letters. [2022-07-13 03:29:03,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:03,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 84 transitions. [2022-07-13 03:29:03,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-07-13 03:29:03,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 38 states and 59 transitions. [2022-07-13 03:29:03,465 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-07-13 03:29:03,466 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-07-13 03:29:03,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 59 transitions. [2022-07-13 03:29:03,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:03,466 INFO L369 hiAutomatonCegarLoop]: Abstraction has 38 states and 59 transitions. [2022-07-13 03:29:03,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 59 transitions. [2022-07-13 03:29:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2022-07-13 03:29:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2022-07-13 03:29:03,490 INFO L392 hiAutomatonCegarLoop]: Abstraction has 36 states and 57 transitions. [2022-07-13 03:29:03,490 INFO L374 stractBuchiCegarLoop]: Abstraction has 36 states and 57 transitions. [2022-07-13 03:29:03,490 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:29:03,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 57 transitions. [2022-07-13 03:29:03,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-07-13 03:29:03,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:29:03,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:29:03,492 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:29:03,492 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-13 03:29:03,493 INFO L752 eck$LassoCheckResult]: Stem: 124#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 125#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 148#L111 assume !false; 120#L30 [2022-07-13 03:29:03,493 INFO L754 eck$LassoCheckResult]: Loop: 120#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 121#L36 assume 8466 == main_~s__state~0#1; 144#L37 assume !(0 == main_~blastFlag~0#1); 151#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 130#L111 assume !false; 120#L30 [2022-07-13 03:29:03,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:03,493 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-13 03:29:03,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:03,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591763024] [2022-07-13 03:29:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:03,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:03,500 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:03,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:03,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:03,507 INFO L85 PathProgramCache]: Analyzing trace with hash 44013377, now seen corresponding path program 1 times [2022-07-13 03:29:03,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:03,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677926380] [2022-07-13 03:29:03,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:03,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:03,512 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:03,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:03,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:03,516 INFO L85 PathProgramCache]: Analyzing trace with hash 297857786, now seen corresponding path program 1 times [2022-07-13 03:29:03,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:03,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163603106] [2022-07-13 03:29:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:03,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:03,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:03,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:29:03,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163603106] [2022-07-13 03:29:03,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163603106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:29:03,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:29:03,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:29:03,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154988048] [2022-07-13 03:29:03,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:29:03,581 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:29:03,581 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:29:03,581 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:29:03,581 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:29:03,582 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:29:03,582 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:03,582 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:29:03,582 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:29:03,582 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2022-07-13 03:29:03,582 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:29:03,582 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:29:03,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:03,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:03,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:03,634 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:29:03,634 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:29:03,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:03,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:03,636 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:03,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:29:03,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:03,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-13 03:29:03,659 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:29:03,659 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=-1} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:29:03,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:03,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:03,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:03,677 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:03,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-13 03:29:03,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:29:03,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:03,689 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:29:03,689 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0#1=0} Honda state: {ULTIMATE.start_main_~s__hit~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:29:03,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-13 03:29:03,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:03,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:03,707 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:03,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-13 03:29:03,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:29:03,709 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:03,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:03,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:03,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:03,759 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:03,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:29:03,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:03,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-13 03:29:03,793 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:29:03,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:03,811 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:29:03,812 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:29:03,812 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:29:03,812 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:29:03,812 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:29:03,812 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:03,812 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:29:03,812 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:29:03,812 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2022-07-13 03:29:03,812 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:29:03,812 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:29:03,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:03,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:03,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:03,888 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:29:03,889 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:29:03,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:03,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:03,892 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:03,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-13 03:29:03,895 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:29:03,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:29:03,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:29:03,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:29:03,902 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 03:29:03,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:29:03,903 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:29:03,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:29:03,923 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:29:03,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:03,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:03,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:03,951 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:03,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-13 03:29:03,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:29:03,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:29:03,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:29:03,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:29:03,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:29:03,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:29:03,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:29:03,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:29:03,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:29:03,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-07-13 03:29:03,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:03,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:03,993 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:03,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-13 03:29:03,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:29:04,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:29:04,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:29:04,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:29:04,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:29:04,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:29:04,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:29:04,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:29:04,006 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:29:04,008 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:29:04,008 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:29:04,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:04,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:04,010 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:04,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-13 03:29:04,012 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:29:04,012 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:29:04,012 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:29:04,012 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8489 Supporting invariants [] [2022-07-13 03:29:04,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:04,030 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:29:04,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:04,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:29:04,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:29:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:04,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:29:04,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:29:04,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:04,119 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:29:04,120 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 57 transitions. cyclomatic complexity: 23 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:04,160 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 57 transitions. cyclomatic complexity: 23. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 104 states and 155 transitions. Complement of second has 7 states. [2022-07-13 03:29:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:29:04,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:04,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-07-13 03:29:04,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 5 letters. [2022-07-13 03:29:04,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:04,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 8 letters. Loop has 5 letters. [2022-07-13 03:29:04,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:04,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 10 letters. [2022-07-13 03:29:04,167 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:04,167 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 155 transitions. [2022-07-13 03:29:04,170 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-07-13 03:29:04,175 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 77 states and 121 transitions. [2022-07-13 03:29:04,177 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-07-13 03:29:04,178 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2022-07-13 03:29:04,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 121 transitions. [2022-07-13 03:29:04,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:04,179 INFO L369 hiAutomatonCegarLoop]: Abstraction has 77 states and 121 transitions. [2022-07-13 03:29:04,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 121 transitions. [2022-07-13 03:29:04,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 54. [2022-07-13 03:29:04,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.5925925925925926) internal successors, (86), 53 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:04,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 86 transitions. [2022-07-13 03:29:04,188 INFO L392 hiAutomatonCegarLoop]: Abstraction has 54 states and 86 transitions. [2022-07-13 03:29:04,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:29:04,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:29:04,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:29:04,192 INFO L87 Difference]: Start difference. First operand 54 states and 86 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:04,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:29:04,217 INFO L93 Difference]: Finished difference Result 90 states and 128 transitions. [2022-07-13 03:29:04,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:29:04,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 128 transitions. [2022-07-13 03:29:04,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-07-13 03:29:04,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 87 states and 125 transitions. [2022-07-13 03:29:04,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2022-07-13 03:29:04,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2022-07-13 03:29:04,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 125 transitions. [2022-07-13 03:29:04,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:04,222 INFO L369 hiAutomatonCegarLoop]: Abstraction has 87 states and 125 transitions. [2022-07-13 03:29:04,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 125 transitions. [2022-07-13 03:29:04,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2022-07-13 03:29:04,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 85 states have (on average 1.4470588235294117) internal successors, (123), 84 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:04,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2022-07-13 03:29:04,227 INFO L392 hiAutomatonCegarLoop]: Abstraction has 85 states and 123 transitions. [2022-07-13 03:29:04,227 INFO L374 stractBuchiCegarLoop]: Abstraction has 85 states and 123 transitions. [2022-07-13 03:29:04,228 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:29:04,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 123 transitions. [2022-07-13 03:29:04,229 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-07-13 03:29:04,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:29:04,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:29:04,229 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:29:04,229 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-13 03:29:04,230 INFO L752 eck$LassoCheckResult]: Stem: 459#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 460#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 481#L111 assume !false; 455#L30 [2022-07-13 03:29:04,230 INFO L754 eck$LassoCheckResult]: Loop: 455#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 456#L36 assume !(8466 == main_~s__state~0#1); 478#L41 assume 8512 == main_~s__state~0#1; 482#L42 main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 476#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 465#L111 assume !false; 455#L30 [2022-07-13 03:29:04,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:04,230 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2022-07-13 03:29:04,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:04,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266566170] [2022-07-13 03:29:04,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:04,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:04,236 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:04,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:04,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:04,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1365729718, now seen corresponding path program 1 times [2022-07-13 03:29:04,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:04,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660351024] [2022-07-13 03:29:04,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:04,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:04,246 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:04,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:04,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:04,250 INFO L85 PathProgramCache]: Analyzing trace with hash 644971805, now seen corresponding path program 1 times [2022-07-13 03:29:04,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:04,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985589504] [2022-07-13 03:29:04,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:04,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:04,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:04,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:29:04,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985589504] [2022-07-13 03:29:04,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985589504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:29:04,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:29:04,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:29:04,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132504908] [2022-07-13 03:29:04,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:29:04,308 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:29:04,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:29:04,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:29:04,309 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:29:04,309 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:29:04,309 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:04,309 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:29:04,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:29:04,310 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2022-07-13 03:29:04,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:29:04,310 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:29:04,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:04,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:04,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:04,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:04,366 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:29:04,366 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:29:04,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:04,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:04,372 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:04,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-13 03:29:04,375 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:29:04,375 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:04,397 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:29:04,397 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=2} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:29:04,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:04,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:04,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:04,424 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:04,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:29:04,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:04,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-13 03:29:04,464 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:29:04,464 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=5, ULTIMATE.start_main_~tmp___1~0#1=5} Honda state: {ULTIMATE.start_main_#t~nondet5#1=5, ULTIMATE.start_main_~tmp___1~0#1=5} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:29:04,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:04,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:04,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:04,492 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:04,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-13 03:29:04,495 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:29:04,495 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:04,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:04,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:04,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:04,549 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:04,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-13 03:29:04,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:29:04,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:04,583 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:29:04,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:04,607 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:29:04,607 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:29:04,607 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:29:04,607 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:29:04,608 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:29:04,608 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:04,608 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:29:04,608 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:29:04,608 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2022-07-13 03:29:04,608 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:29:04,608 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:29:04,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:04,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:04,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:04,668 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:29:04,669 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:29:04,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:04,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:04,671 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:04,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-13 03:29:04,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:29:04,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:29:04,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:29:04,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:29:04,679 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 03:29:04,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:29:04,682 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:29:04,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:29:04,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:29:04,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:04,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:04,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:04,725 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:04,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:29:04,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:29:04,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:29:04,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:29:04,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:29:04,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:29:04,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-13 03:29:04,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:29:04,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:29:04,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:29:04,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:04,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:04,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:04,787 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:04,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:29:04,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:29:04,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:29:04,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:29:04,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:29:04,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:29:04,800 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:29:04,800 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:29:04,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-13 03:29:04,823 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:29:04,826 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-13 03:29:04,826 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:29:04,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:04,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:04,828 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:04,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-13 03:29:04,831 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:29:04,831 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:29:04,831 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:29:04,831 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = 1*ULTIMATE.start_main_~s__state~0#1 Supporting invariants [] [2022-07-13 03:29:04,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-07-13 03:29:04,851 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:29:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:04,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:29:04,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:29:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:04,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:29:04,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:29:04,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:04,918 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:29:04,919 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 85 states and 123 transitions. cyclomatic complexity: 44 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:04,997 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 85 states and 123 transitions. cyclomatic complexity: 44. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 170 states and 232 transitions. Complement of second has 9 states. [2022-07-13 03:29:05,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:29:05,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2022-07-13 03:29:05,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 6 letters. [2022-07-13 03:29:05,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:05,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 9 letters. Loop has 6 letters. [2022-07-13 03:29:05,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:05,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 12 letters. [2022-07-13 03:29:05,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:05,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 232 transitions. [2022-07-13 03:29:05,005 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-07-13 03:29:05,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 141 states and 196 transitions. [2022-07-13 03:29:05,009 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2022-07-13 03:29:05,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2022-07-13 03:29:05,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 196 transitions. [2022-07-13 03:29:05,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:05,010 INFO L369 hiAutomatonCegarLoop]: Abstraction has 141 states and 196 transitions. [2022-07-13 03:29:05,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 196 transitions. [2022-07-13 03:29:05,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 105. [2022-07-13 03:29:05,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.4095238095238096) internal successors, (148), 104 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2022-07-13 03:29:05,016 INFO L392 hiAutomatonCegarLoop]: Abstraction has 105 states and 148 transitions. [2022-07-13 03:29:05,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:29:05,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:29:05,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:29:05,017 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:29:05,032 INFO L93 Difference]: Finished difference Result 65 states and 94 transitions. [2022-07-13 03:29:05,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:29:05,033 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 94 transitions. [2022-07-13 03:29:05,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2022-07-13 03:29:05,034 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 61 states and 90 transitions. [2022-07-13 03:29:05,035 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2022-07-13 03:29:05,035 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2022-07-13 03:29:05,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 90 transitions. [2022-07-13 03:29:05,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:05,035 INFO L369 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2022-07-13 03:29:05,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 90 transitions. [2022-07-13 03:29:05,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-07-13 03:29:05,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 60 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 90 transitions. [2022-07-13 03:29:05,038 INFO L392 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2022-07-13 03:29:05,038 INFO L374 stractBuchiCegarLoop]: Abstraction has 61 states and 90 transitions. [2022-07-13 03:29:05,038 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 03:29:05,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 90 transitions. [2022-07-13 03:29:05,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2022-07-13 03:29:05,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:29:05,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:29:05,039 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:05,040 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-13 03:29:05,040 INFO L752 eck$LassoCheckResult]: Stem: 941#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 942#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 947#L111 assume !false; 939#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 940#L36 assume 8466 == main_~s__state~0#1; 969#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 987#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 983#L111 assume !false; 982#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 980#L36 assume !(8466 == main_~s__state~0#1); 975#L41 [2022-07-13 03:29:05,040 INFO L754 eck$LassoCheckResult]: Loop: 975#L41 assume 8512 == main_~s__state~0#1; 970#L42 main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 961#L81 assume !(0 != main_~tmp___1~0#1);main_~s__state~0#1 := 8640; 963#L111 assume !false; 937#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 938#L36 assume !(8466 == main_~s__state~0#1); 975#L41 [2022-07-13 03:29:05,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1523382593, now seen corresponding path program 1 times [2022-07-13 03:29:05,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163728809] [2022-07-13 03:29:05,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,047 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:05,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1623382260, now seen corresponding path program 1 times [2022-07-13 03:29:05,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813955131] [2022-07-13 03:29:05,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,072 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,075 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:05,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1141286606, now seen corresponding path program 1 times [2022-07-13 03:29:05,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171754817] [2022-07-13 03:29:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:05,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:29:05,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171754817] [2022-07-13 03:29:05,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171754817] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:29:05,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:29:05,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:29:05,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110621354] [2022-07-13 03:29:05,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:29:05,137 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:29:05,138 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:29:05,138 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:29:05,138 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:29:05,138 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:29:05,138 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:05,138 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:29:05,139 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:29:05,141 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2022-07-13 03:29:05,141 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:29:05,141 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:29:05,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:05,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:05,179 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:29:05,179 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:29:05,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:05,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:05,184 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:05,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-13 03:29:05,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:29:05,188 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:05,209 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:29:05,209 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0, ULTIMATE.start_main_~tmp___1~0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0, ULTIMATE.start_main_~tmp___1~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:29:05,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:05,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:05,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:05,230 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:05,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-13 03:29:05,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:29:05,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:05,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-07-13 03:29:05,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:05,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:05,261 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:05,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-13 03:29:05,263 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:29:05,263 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:05,279 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:29:05,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:05,295 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:29:05,295 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:29:05,296 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:29:05,296 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:29:05,296 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:29:05,296 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:05,296 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:29:05,296 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:29:05,296 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2022-07-13 03:29:05,296 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:29:05,296 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:29:05,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:05,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:05,332 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:29:05,332 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:29:05,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:05,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:05,333 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:05,340 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:29:05,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:29:05,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:29:05,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:29:05,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:29:05,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:29:05,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:29:05,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:29:05,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-13 03:29:05,359 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:29:05,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-07-13 03:29:05,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:05,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:05,383 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:05,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-13 03:29:05,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:29:05,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:29:05,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:29:05,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:29:05,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:29:05,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:29:05,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:29:05,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:29:05,404 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:29:05,408 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:29:05,408 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:29:05,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:05,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:05,410 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:05,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-13 03:29:05,411 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:29:05,412 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:29:05,412 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:29:05,412 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8576 Supporting invariants [] [2022-07-13 03:29:05,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:05,436 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:29:05,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:05,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:29:05,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:29:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:05,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:29:05,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:29:05,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:05,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:05,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:05,538 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:29:05,538 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 90 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,598 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 90 transitions. cyclomatic complexity: 33. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 183 states and 281 transitions. Complement of second has 9 states. [2022-07-13 03:29:05,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:29:05,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2022-07-13 03:29:05,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 10 letters. Loop has 6 letters. [2022-07-13 03:29:05,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:05,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 16 letters. Loop has 6 letters. [2022-07-13 03:29:05,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:05,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 10 letters. Loop has 12 letters. [2022-07-13 03:29:05,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:05,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 281 transitions. [2022-07-13 03:29:05,603 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2022-07-13 03:29:05,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 163 states and 245 transitions. [2022-07-13 03:29:05,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2022-07-13 03:29:05,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2022-07-13 03:29:05,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 163 states and 245 transitions. [2022-07-13 03:29:05,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:05,606 INFO L369 hiAutomatonCegarLoop]: Abstraction has 163 states and 245 transitions. [2022-07-13 03:29:05,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states and 245 transitions. [2022-07-13 03:29:05,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 125. [2022-07-13 03:29:05,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.464) internal successors, (183), 124 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2022-07-13 03:29:05,612 INFO L392 hiAutomatonCegarLoop]: Abstraction has 125 states and 183 transitions. [2022-07-13 03:29:05,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:29:05,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:29:05,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:29:05,613 INFO L87 Difference]: Start difference. First operand 125 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:29:05,633 INFO L93 Difference]: Finished difference Result 164 states and 223 transitions. [2022-07-13 03:29:05,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:29:05,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 223 transitions. [2022-07-13 03:29:05,635 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 36 [2022-07-13 03:29:05,636 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 154 states and 211 transitions. [2022-07-13 03:29:05,637 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2022-07-13 03:29:05,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-07-13 03:29:05,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 211 transitions. [2022-07-13 03:29:05,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:05,637 INFO L369 hiAutomatonCegarLoop]: Abstraction has 154 states and 211 transitions. [2022-07-13 03:29:05,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 211 transitions. [2022-07-13 03:29:05,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 134. [2022-07-13 03:29:05,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 134 states have (on average 1.4253731343283582) internal successors, (191), 133 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 191 transitions. [2022-07-13 03:29:05,642 INFO L392 hiAutomatonCegarLoop]: Abstraction has 134 states and 191 transitions. [2022-07-13 03:29:05,642 INFO L374 stractBuchiCegarLoop]: Abstraction has 134 states and 191 transitions. [2022-07-13 03:29:05,643 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-13 03:29:05,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 191 transitions. [2022-07-13 03:29:05,643 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2022-07-13 03:29:05,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:29:05,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:29:05,644 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:05,644 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:05,644 INFO L752 eck$LassoCheckResult]: Stem: 1552#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1553#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 1577#L111 assume !false; 1674#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1672#L36 assume 8466 == main_~s__state~0#1; 1648#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1645#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1558#L111 [2022-07-13 03:29:05,644 INFO L754 eck$LassoCheckResult]: Loop: 1558#L111 assume !false; 1548#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1549#L36 assume !(8466 == main_~s__state~0#1); 1575#L41 assume !(8512 == main_~s__state~0#1); 1591#L57 assume !(8640 == main_~s__state~0#1); 1554#L61 assume 8656 == main_~s__state~0#1; 1555#L62 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1564#L100-1 assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5; 1566#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1590#L111 assume !false; 1624#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1625#L36 assume 8466 == main_~s__state~0#1; 1581#L37 assume !(0 == main_~blastFlag~0#1); 1582#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1558#L111 [2022-07-13 03:29:05,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 1 times [2022-07-13 03:29:05,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121308237] [2022-07-13 03:29:05,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,650 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:05,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1982564596, now seen corresponding path program 1 times [2022-07-13 03:29:05,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627464724] [2022-07-13 03:29:05,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:05,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:05,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:29:05,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627464724] [2022-07-13 03:29:05,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627464724] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:29:05,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:29:05,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:29:05,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580096823] [2022-07-13 03:29:05,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:29:05,669 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:29:05,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:29:05,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:29:05,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:29:05,670 INFO L87 Difference]: Start difference. First operand 134 states and 191 transitions. cyclomatic complexity: 65 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:29:05,688 INFO L93 Difference]: Finished difference Result 182 states and 254 transitions. [2022-07-13 03:29:05,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:29:05,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 254 transitions. [2022-07-13 03:29:05,690 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2022-07-13 03:29:05,691 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 254 transitions. [2022-07-13 03:29:05,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2022-07-13 03:29:05,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2022-07-13 03:29:05,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 254 transitions. [2022-07-13 03:29:05,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:05,692 INFO L369 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2022-07-13 03:29:05,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 254 transitions. [2022-07-13 03:29:05,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-07-13 03:29:05,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 182 states have (on average 1.3956043956043955) internal successors, (254), 181 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 254 transitions. [2022-07-13 03:29:05,698 INFO L392 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2022-07-13 03:29:05,698 INFO L374 stractBuchiCegarLoop]: Abstraction has 182 states and 254 transitions. [2022-07-13 03:29:05,698 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-13 03:29:05,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 182 states and 254 transitions. [2022-07-13 03:29:05,699 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2022-07-13 03:29:05,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:29:05,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:29:05,700 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:05,700 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:05,700 INFO L752 eck$LassoCheckResult]: Stem: 1874#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1875#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 1880#L111 assume !false; 1881#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2008#L36 assume 8466 == main_~s__state~0#1; 1992#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1989#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1940#L111 [2022-07-13 03:29:05,700 INFO L754 eck$LassoCheckResult]: Loop: 1940#L111 assume !false; 1960#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1958#L36 assume !(8466 == main_~s__state~0#1); 1955#L41 assume !(8512 == main_~s__state~0#1); 1952#L57 assume !(8640 == main_~s__state~0#1); 1876#L61 assume 8656 == main_~s__state~0#1; 1877#L62 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1883#L100-1 assume !(4 == main_~blastFlag~0#1); 1884#L107 assume !(5 == main_~blastFlag~0#1); 1918#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1919#L111 assume !false; 1978#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1979#L36 assume 8466 == main_~s__state~0#1; 1968#L37 assume !(0 == main_~blastFlag~0#1); 1965#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1940#L111 [2022-07-13 03:29:05,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 2 times [2022-07-13 03:29:05,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482363660] [2022-07-13 03:29:05,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,706 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,710 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:05,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,711 INFO L85 PathProgramCache]: Analyzing trace with hash 862619384, now seen corresponding path program 1 times [2022-07-13 03:29:05,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718624247] [2022-07-13 03:29:05,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:05,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:05,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:29:05,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718624247] [2022-07-13 03:29:05,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718624247] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:29:05,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:29:05,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:29:05,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265818947] [2022-07-13 03:29:05,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:29:05,727 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:29:05,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:29:05,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:29:05,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:29:05,728 INFO L87 Difference]: Start difference. First operand 182 states and 254 transitions. cyclomatic complexity: 80 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:29:05,750 INFO L93 Difference]: Finished difference Result 157 states and 202 transitions. [2022-07-13 03:29:05,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:29:05,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 202 transitions. [2022-07-13 03:29:05,752 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2022-07-13 03:29:05,753 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 111 states and 141 transitions. [2022-07-13 03:29:05,753 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2022-07-13 03:29:05,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-07-13 03:29:05,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 141 transitions. [2022-07-13 03:29:05,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:05,754 INFO L369 hiAutomatonCegarLoop]: Abstraction has 111 states and 141 transitions. [2022-07-13 03:29:05,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 141 transitions. [2022-07-13 03:29:05,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 105. [2022-07-13 03:29:05,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.276190476190476) internal successors, (134), 104 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2022-07-13 03:29:05,757 INFO L392 hiAutomatonCegarLoop]: Abstraction has 105 states and 134 transitions. [2022-07-13 03:29:05,757 INFO L374 stractBuchiCegarLoop]: Abstraction has 105 states and 134 transitions. [2022-07-13 03:29:05,757 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-13 03:29:05,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 134 transitions. [2022-07-13 03:29:05,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2022-07-13 03:29:05,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:29:05,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:29:05,759 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:05,759 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:05,759 INFO L752 eck$LassoCheckResult]: Stem: 2215#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2216#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2234#L111 assume !false; 2300#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2237#L36 assume 8466 == main_~s__state~0#1; 2238#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2266#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2268#L111 [2022-07-13 03:29:05,759 INFO L754 eck$LassoCheckResult]: Loop: 2268#L111 assume !false; 2310#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2308#L36 assume !(8466 == main_~s__state~0#1); 2306#L41 assume !(8512 == main_~s__state~0#1); 2252#L57 assume !(8640 == main_~s__state~0#1); 2221#L61 assume 8656 == main_~s__state~0#1; 2222#L62 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 2228#L100-1 assume !(4 == main_~blastFlag~0#1); 2229#L107 assume !(5 == main_~blastFlag~0#1); 2245#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2223#L111 assume !false; 2224#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2235#L36 assume !(8466 == main_~s__state~0#1); 2236#L41 assume !(8512 == main_~s__state~0#1); 2246#L57 assume 8640 == main_~s__state~0#1; 2304#L58 assume !(3 == main_~blastFlag~0#1); 2311#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2268#L111 [2022-07-13 03:29:05,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 3 times [2022-07-13 03:29:05,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257280376] [2022-07-13 03:29:05,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,765 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:05,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,770 INFO L85 PathProgramCache]: Analyzing trace with hash 49895967, now seen corresponding path program 1 times [2022-07-13 03:29:05,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688528825] [2022-07-13 03:29:05,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:05,789 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:05,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:29:05,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688528825] [2022-07-13 03:29:05,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688528825] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:29:05,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:29:05,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:29:05,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37311423] [2022-07-13 03:29:05,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:29:05,790 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:29:05,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:29:05,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:29:05,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:29:05,791 INFO L87 Difference]: Start difference. First operand 105 states and 134 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:29:05,804 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2022-07-13 03:29:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:29:05,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 146 transitions. [2022-07-13 03:29:05,806 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2022-07-13 03:29:05,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 116 states and 146 transitions. [2022-07-13 03:29:05,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2022-07-13 03:29:05,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2022-07-13 03:29:05,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 146 transitions. [2022-07-13 03:29:05,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:05,808 INFO L369 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2022-07-13 03:29:05,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 146 transitions. [2022-07-13 03:29:05,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-07-13 03:29:05,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 116 states have (on average 1.2586206896551724) internal successors, (146), 115 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2022-07-13 03:29:05,815 INFO L392 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2022-07-13 03:29:05,815 INFO L374 stractBuchiCegarLoop]: Abstraction has 116 states and 146 transitions. [2022-07-13 03:29:05,815 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-13 03:29:05,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 146 transitions. [2022-07-13 03:29:05,816 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2022-07-13 03:29:05,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:29:05,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:29:05,817 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:05,817 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:05,817 INFO L752 eck$LassoCheckResult]: Stem: 2442#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2443#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2460#L111 assume !false; 2541#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2540#L36 assume 8466 == main_~s__state~0#1; 2500#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2495#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2450#L111 [2022-07-13 03:29:05,817 INFO L754 eck$LassoCheckResult]: Loop: 2450#L111 assume !false; 2444#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2445#L36 assume !(8466 == main_~s__state~0#1); 2461#L41 assume !(8512 == main_~s__state~0#1); 2472#L57 assume !(8640 == main_~s__state~0#1); 2478#L61 assume 8656 == main_~s__state~0#1; 2546#L62 assume !(2 == main_~blastFlag~0#1); 2454#L100-1 assume !(4 == main_~blastFlag~0#1); 2455#L107 assume !(5 == main_~blastFlag~0#1); 2471#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2477#L111 assume !false; 2525#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2522#L36 assume !(8466 == main_~s__state~0#1); 2515#L41 assume !(8512 == main_~s__state~0#1); 2512#L57 assume 8640 == main_~s__state~0#1; 2482#L58 assume !(3 == main_~blastFlag~0#1); 2479#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2450#L111 [2022-07-13 03:29:05,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 4 times [2022-07-13 03:29:05,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271184689] [2022-07-13 03:29:05,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,831 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:05,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,845 INFO L85 PathProgramCache]: Analyzing trace with hash 750960545, now seen corresponding path program 1 times [2022-07-13 03:29:05,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030756936] [2022-07-13 03:29:05,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:05,878 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:05,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:29:05,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030756936] [2022-07-13 03:29:05,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030756936] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:29:05,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:29:05,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 03:29:05,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154675337] [2022-07-13 03:29:05,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:29:05,880 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:29:05,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:29:05,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:29:05,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:29:05,881 INFO L87 Difference]: Start difference. First operand 116 states and 146 transitions. cyclomatic complexity: 38 Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:29:05,890 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2022-07-13 03:29:05,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:29:05,891 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 175 transitions. [2022-07-13 03:29:05,892 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2022-07-13 03:29:05,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 137 states and 167 transitions. [2022-07-13 03:29:05,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2022-07-13 03:29:05,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2022-07-13 03:29:05,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 167 transitions. [2022-07-13 03:29:05,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:05,894 INFO L369 hiAutomatonCegarLoop]: Abstraction has 137 states and 167 transitions. [2022-07-13 03:29:05,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 167 transitions. [2022-07-13 03:29:05,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2022-07-13 03:29:05,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.2477064220183487) internal successors, (136), 108 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2022-07-13 03:29:05,896 INFO L392 hiAutomatonCegarLoop]: Abstraction has 109 states and 136 transitions. [2022-07-13 03:29:05,896 INFO L374 stractBuchiCegarLoop]: Abstraction has 109 states and 136 transitions. [2022-07-13 03:29:05,897 INFO L287 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-07-13 03:29:05,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 136 transitions. [2022-07-13 03:29:05,897 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2022-07-13 03:29:05,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:29:05,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:29:05,898 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:05,898 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:05,898 INFO L752 eck$LassoCheckResult]: Stem: 2706#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2707#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2725#L111 assume !false; 2780#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2775#L36 assume 8466 == main_~s__state~0#1; 2773#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2770#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2714#L111 [2022-07-13 03:29:05,898 INFO L754 eck$LassoCheckResult]: Loop: 2714#L111 assume !false; 2708#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2709#L36 assume !(8466 == main_~s__state~0#1); 2726#L41 assume !(8512 == main_~s__state~0#1); 2735#L57 assume !(8640 == main_~s__state~0#1); 2712#L61 assume 8656 == main_~s__state~0#1; 2713#L62 assume !(2 == main_~blastFlag~0#1); 2807#L100-1 assume !(4 == main_~blastFlag~0#1); 2733#L107 assume !(5 == main_~blastFlag~0#1); 2734#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2714#L111 [2022-07-13 03:29:05,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 5 times [2022-07-13 03:29:05,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958325068] [2022-07-13 03:29:05,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,904 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:05,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1947655960, now seen corresponding path program 1 times [2022-07-13 03:29:05,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921517081] [2022-07-13 03:29:05,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,928 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:05,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:05,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:05,933 INFO L85 PathProgramCache]: Analyzing trace with hash 163931656, now seen corresponding path program 1 times [2022-07-13 03:29:05,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:05,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356770716] [2022-07-13 03:29:05,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:05,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:05,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:29:05,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356770716] [2022-07-13 03:29:05,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356770716] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:29:05,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:29:05,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:29:05,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415258443] [2022-07-13 03:29:05,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:29:05,985 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:29:05,986 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:29:05,986 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:29:05,986 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:29:05,986 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:29:05,986 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:05,986 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:29:05,987 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:29:05,987 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2022-07-13 03:29:05,987 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:29:05,987 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:29:05,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:05,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:05,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:06,068 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:29:06,069 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:29:06,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:06,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:06,071 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:06,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-13 03:29:06,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:29:06,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:06,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:06,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:06,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:06,124 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:06,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:29:06,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:29:06,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-13 03:29:06,150 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:29:06,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-07-13 03:29:06,165 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:29:06,165 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:29:06,166 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:29:06,166 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:29:06,166 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:29:06,166 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:06,166 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:29:06,166 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:29:06,166 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2022-07-13 03:29:06,166 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:29:06,166 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:29:06,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:06,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:06,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:29:06,241 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:29:06,241 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:29:06,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:06,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:06,242 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:06,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-13 03:29:06,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:29:06,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:29:06,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:29:06,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:29:06,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:29:06,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:29:06,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:29:06,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:29:06,260 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:29:06,262 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-13 03:29:06,262 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:29:06,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:29:06,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:29:06,263 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:29:06,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-13 03:29:06,265 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:29:06,265 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:29:06,265 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:29:06,265 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = 1*ULTIMATE.start_main_~s__state~0#1 Supporting invariants [] [2022-07-13 03:29:06,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:06,281 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:29:06,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:06,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:29:06,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:29:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:29:06,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:29:06,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:29:06,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:29:06,357 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:29:06,357 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 109 states and 136 transitions. cyclomatic complexity: 36 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:06,385 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 109 states and 136 transitions. cyclomatic complexity: 36. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 148 states and 178 transitions. Complement of second has 6 states. [2022-07-13 03:29:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:29:06,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:06,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-07-13 03:29:06,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 10 letters. [2022-07-13 03:29:06,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:06,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 17 letters. Loop has 10 letters. [2022-07-13 03:29:06,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:06,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 20 letters. [2022-07-13 03:29:06,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:29:06,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 178 transitions. [2022-07-13 03:29:06,390 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2022-07-13 03:29:06,391 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 109 states and 132 transitions. [2022-07-13 03:29:06,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-07-13 03:29:06,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-07-13 03:29:06,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 132 transitions. [2022-07-13 03:29:06,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:06,392 INFO L369 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2022-07-13 03:29:06,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 132 transitions. [2022-07-13 03:29:06,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-07-13 03:29:06,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 108 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:06,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2022-07-13 03:29:06,394 INFO L392 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2022-07-13 03:29:06,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:29:06,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:29:06,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:29:06,395 INFO L87 Difference]: Start difference. First operand 109 states and 132 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:06,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:29:06,406 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2022-07-13 03:29:06,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:29:06,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 106 transitions. [2022-07-13 03:29:06,408 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2022-07-13 03:29:06,408 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 62 states and 71 transitions. [2022-07-13 03:29:06,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-07-13 03:29:06,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2022-07-13 03:29:06,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 71 transitions. [2022-07-13 03:29:06,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:29:06,409 INFO L369 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-07-13 03:29:06,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 71 transitions. [2022-07-13 03:29:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-07-13 03:29:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 61 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:29:06,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2022-07-13 03:29:06,411 INFO L392 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-07-13 03:29:06,411 INFO L374 stractBuchiCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-07-13 03:29:06,411 INFO L287 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-07-13 03:29:06,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 71 transitions. [2022-07-13 03:29:06,412 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2022-07-13 03:29:06,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:29:06,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:29:06,413 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:06,413 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:29:06,413 INFO L752 eck$LassoCheckResult]: Stem: 3244#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 3245#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 3248#L111 assume !false; 3240#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3241#L36 assume 8466 == main_~s__state~0#1; 3294#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 3293#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3291#L111 assume !false; 3250#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3292#L36 assume !(8466 == main_~s__state~0#1); 3290#L41 assume 8512 == main_~s__state~0#1; 3263#L42 [2022-07-13 03:29:06,413 INFO L754 eck$LassoCheckResult]: Loop: 3263#L42 main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3255#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 3256#L111 assume !false; 3300#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3297#L36 assume 8466 == main_~s__state~0#1; 3266#L37 assume !(0 == main_~blastFlag~0#1); 3267#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3272#L111 assume !false; 3299#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3298#L36 assume !(8466 == main_~s__state~0#1); 3269#L41 assume 8512 == main_~s__state~0#1; 3263#L42 [2022-07-13 03:29:06,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:06,414 INFO L85 PathProgramCache]: Analyzing trace with hash 21626939, now seen corresponding path program 1 times [2022-07-13 03:29:06,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:06,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104387384] [2022-07-13 03:29:06,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:06,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:06,420 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:06,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:06,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:06,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1294878776, now seen corresponding path program 1 times [2022-07-13 03:29:06,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:06,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925713121] [2022-07-13 03:29:06,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:06,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:06,429 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:06,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:06,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:29:06,432 INFO L85 PathProgramCache]: Analyzing trace with hash 937672638, now seen corresponding path program 1 times [2022-07-13 03:29:06,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:29:06,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344854201] [2022-07-13 03:29:06,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:29:06,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:29:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:06,438 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:29:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:29:06,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:29:06,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:29:06 BoogieIcfgContainer [2022-07-13 03:29:06,631 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:29:06,631 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:29:06,631 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:29:06,632 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:29:06,632 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:29:02" (3/4) ... [2022-07-13 03:29:06,635 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-13 03:29:06,678 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 03:29:06,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:29:06,680 INFO L158 Benchmark]: Toolchain (without parser) took 4997.83ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 59.7MB in the beginning and 69.1MB in the end (delta: -9.4MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2022-07-13 03:29:06,680 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:29:06,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.89ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 59.6MB in the beginning and 88.8MB in the end (delta: -29.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:29:06,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.32ms. Allocated memory is still 113.2MB. Free memory was 88.8MB in the beginning and 87.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:29:06,681 INFO L158 Benchmark]: Boogie Preprocessor took 37.53ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 86.1MB in the end (delta: 994.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:29:06,681 INFO L158 Benchmark]: RCFGBuilder took 307.65ms. Allocated memory is still 113.2MB. Free memory was 86.1MB in the beginning and 76.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:29:06,682 INFO L158 Benchmark]: BuchiAutomizer took 4279.22ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 75.6MB in the beginning and 71.2MB in the end (delta: 4.4MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-07-13 03:29:06,682 INFO L158 Benchmark]: Witness Printer took 47.73ms. Allocated memory is still 136.3MB. Free memory was 71.2MB in the beginning and 69.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:29:06,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.89ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 59.6MB in the beginning and 88.8MB in the end (delta: -29.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.32ms. Allocated memory is still 113.2MB. Free memory was 88.8MB in the beginning and 87.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.53ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 86.1MB in the end (delta: 994.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 307.65ms. Allocated memory is still 113.2MB. Free memory was 86.1MB in the beginning and 76.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4279.22ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 75.6MB in the beginning and 71.2MB in the end (delta: 4.4MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 47.73ms. Allocated memory is still 136.3MB. Free memory was 71.2MB in the beginning and 69.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (8 trivial, 5 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * blastFlag + 1 and consists of 4 locations. One deterministic module has affine ranking function -1 * s__state + 8489 and consists of 4 locations. One deterministic module has affine ranking function s__state and consists of 5 locations. One deterministic module has affine ranking function 8576 + -1 * s__state and consists of 5 locations. One deterministic module has affine ranking function s__state and consists of 4 locations. 8 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 62 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 3.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 13. Automata minimization 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 155 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 253 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 548 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 196 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 269 IncrementalHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 352 mSDtfsCounter, 269 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT1 conc0 concLT4 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp52 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq186 hnf91 smp100 dnf180 smp78 tf112 neg93 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 41]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52fd9255=4, NULL=0, NULL=0, s__hit=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f35c297=0, s__state=8512, tmp___1=4, NULL=1, \result=0, blastFlag=2} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 41]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L21] int s__state ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int blastFlag ; [L24] int tmp___1; [L26] s__state = 8466 [L27] blastFlag = 0 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND TRUE s__state == 8466 [L69] COND TRUE blastFlag == 0 [L70] blastFlag = 2 [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND FALSE !(s__state == 8466) [L41] COND TRUE s__state == 8512 Loop: [L80] tmp___1 = __VERIFIER_nondet_int() [L81] COND TRUE \read(tmp___1) [L82] s__state = 8466 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND TRUE s__state == 8466 [L69] COND FALSE !(blastFlag == 0) [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND FALSE !(s__state == 8466) [L41] COND TRUE s__state == 8512 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-13 03:29:06,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-07-13 03:29:06,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)