./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcmp_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcmp_malloc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3 --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 64bit --witnessprinter.graph.data.programhash 2b3cf29a1a2b298bac4a0639392dc4a433a50703 ....................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:36:52,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:36:52,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:36:52,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:36:52,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:36:52,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:36:52,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:36:52,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:36:52,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:36:52,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:36:52,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:36:52,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:36:52,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:36:52,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:36:52,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:36:52,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:36:52,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:36:52,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:36:52,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:36:52,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:36:52,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:36:52,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:36:52,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:36:52,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:36:52,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:36:52,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:36:52,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:36:52,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:36:52,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:36:52,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:36:52,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:36:52,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:36:52,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:36:52,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:36:52,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:36:52,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:36:52,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:36:52,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:36:52,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:36:52,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:36:52,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:36:52,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-15 19:36:52,939 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:36:52,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:36:52,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:36:52,940 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:36:52,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:36:52,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:36:52,941 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:36:52,942 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:36:52,942 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:36:52,942 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:36:52,942 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:36:52,943 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:36:52,943 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:36:52,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:36:52,943 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:36:52,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:36:52,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:36:52,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:36:52,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:36:52,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:36:52,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:36:52,945 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:36:52,945 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:36:52,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:36:52,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:36:52,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:36:52,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:36:52,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:36:52,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:36:52,948 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:36:52,948 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b3cf29a1a2b298bac4a0639392dc4a433a50703 [2021-10-15 19:36:53,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:36:53,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:36:53,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:36:53,203 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:36:53,204 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:36:53,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/termination-15/cstrcmp_malloc.i [2021-10-15 19:36:53,280 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/data/1a69bdb96/18047722ff3a41d3809ce6cfddec237c/FLAG9e33ceefb [2021-10-15 19:36:53,857 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:36:53,858 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/sv-benchmarks/c/termination-15/cstrcmp_malloc.i [2021-10-15 19:36:53,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/data/1a69bdb96/18047722ff3a41d3809ce6cfddec237c/FLAG9e33ceefb [2021-10-15 19:36:54,140 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/data/1a69bdb96/18047722ff3a41d3809ce6cfddec237c [2021-10-15 19:36:54,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:36:54,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:36:54,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:36:54,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:36:54,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:36:54,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:36:54" (1/1) ... [2021-10-15 19:36:54,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aec0011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54, skipping insertion in model container [2021-10-15 19:36:54,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:36:54" (1/1) ... [2021-10-15 19:36:54,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:36:54,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:36:54,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:36:54,542 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:36:54,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:36:54,617 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:36:54,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54 WrapperNode [2021-10-15 19:36:54,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:36:54,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:36:54,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:36:54,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:36:54,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54" (1/1) ... [2021-10-15 19:36:54,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54" (1/1) ... [2021-10-15 19:36:54,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:36:54,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:36:54,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:36:54,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:36:54,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54" (1/1) ... [2021-10-15 19:36:54,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54" (1/1) ... [2021-10-15 19:36:54,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54" (1/1) ... [2021-10-15 19:36:54,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54" (1/1) ... [2021-10-15 19:36:54,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54" (1/1) ... [2021-10-15 19:36:54,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54" (1/1) ... [2021-10-15 19:36:54,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54" (1/1) ... [2021-10-15 19:36:54,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:36:54,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:36:54,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:36:54,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:36:54,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54" (1/1) ... [2021-10-15 19:36:54,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:36:54,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:36:54,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:36:54,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:36:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:36:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:36:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-15 19:36:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:36:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:36:54,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:36:55,074 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:36:55,074 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-15 19:36:55,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:36:55 BoogieIcfgContainer [2021-10-15 19:36:55,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:36:55,077 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:36:55,077 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:36:55,080 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:36:55,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:36:55,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:36:54" (1/3) ... [2021-10-15 19:36:55,082 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58a2ac10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:36:55, skipping insertion in model container [2021-10-15 19:36:55,083 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:36:55,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:36:54" (2/3) ... [2021-10-15 19:36:55,083 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58a2ac10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:36:55, skipping insertion in model container [2021-10-15 19:36:55,083 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:36:55,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:36:55" (3/3) ... [2021-10-15 19:36:55,085 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrcmp_malloc.i [2021-10-15 19:36:55,129 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:36:55,129 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:36:55,129 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:36:55,129 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:36:55,129 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:36:55,130 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:36:55,130 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:36:55,130 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:36:55,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-10-15 19:36:55,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 19:36:55,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:36:55,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:36:55,168 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-15 19:36:55,168 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 19:36:55,168 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:36:55,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-10-15 19:36:55,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 19:36:55,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:36:55,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:36:55,172 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-15 19:36:55,172 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 19:36:55,177 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet214, main_#t~nondet215, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~malloc217.base, main_#t~malloc217.offset, main_#t~ret218, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet214;havoc main_#t~nondet214;main_~length2~0 := main_#t~nondet215;havoc main_#t~nondet215; 11#L378true assume !(main_~length1~0 < 1); 13#L378-2true assume !(main_~length2~0 < 1); 12#L381-1true call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;havoc main_#t~malloc216.base, main_#t~malloc216.offset;call main_#t~malloc217.base, main_#t~malloc217.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc217.base, main_#t~malloc217.offset;havoc main_#t~malloc217.base, main_#t~malloc217.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post209.base, cstrcmp_#t~post209.offset, cstrcmp_#t~post210.base, cstrcmp_#t~post210.offset, cstrcmp_#t~mem205, cstrcmp_#t~mem206, cstrcmp_#t~mem207, cstrcmp_#t~short208, cstrcmp_#t~mem211, cstrcmp_#t~mem212, cstrcmp_#t~ite213, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset, cstrcmp_~uc1~0, cstrcmp_~uc2~0;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset;havoc cstrcmp_~uc1~0;havoc cstrcmp_~uc2~0; 7#L367-5true [2021-10-15 19:36:55,178 INFO L793 eck$LassoCheckResult]: Loop: 7#L367-5true call cstrcmp_#t~mem205 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~short208 := 0 != cstrcmp_#t~mem205; 14#L367-1true assume cstrcmp_#t~short208;call cstrcmp_#t~mem206 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);call cstrcmp_#t~mem207 := read~int(cstrcmp_~s2.base, cstrcmp_~s2.offset, 1);cstrcmp_#t~short208 := cstrcmp_#t~mem206 == cstrcmp_#t~mem207; 3#L367-3true assume !!cstrcmp_#t~short208;havoc cstrcmp_#t~mem205;havoc cstrcmp_#t~mem206;havoc cstrcmp_#t~mem207;havoc cstrcmp_#t~short208;cstrcmp_#t~post209.base, cstrcmp_#t~post209.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post209.base, 1 + cstrcmp_#t~post209.offset;havoc cstrcmp_#t~post209.base, cstrcmp_#t~post209.offset;cstrcmp_#t~post210.base, cstrcmp_#t~post210.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post210.base, 1 + cstrcmp_#t~post210.offset;havoc cstrcmp_#t~post210.base, cstrcmp_#t~post210.offset; 7#L367-5true [2021-10-15 19:36:55,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:36:55,183 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-10-15 19:36:55,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:36:55,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504009689] [2021-10-15 19:36:55,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:36:55,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:36:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:36:55,296 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:36:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:36:55,342 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:36:55,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:36:55,351 INFO L82 PathProgramCache]: Analyzing trace with hash 49755, now seen corresponding path program 1 times [2021-10-15 19:36:55,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:36:55,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070331450] [2021-10-15 19:36:55,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:36:55,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:36:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:36:55,371 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:36:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:36:55,386 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:36:55,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:36:55,395 INFO L82 PathProgramCache]: Analyzing trace with hash 180429558, now seen corresponding path program 1 times [2021-10-15 19:36:55,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:36:55,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333267646] [2021-10-15 19:36:55,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:36:55,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:36:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:36:55,461 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:36:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:36:55,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:36:56,379 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:36:56,380 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:36:56,380 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:36:56,380 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:36:56,380 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:36:56,381 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:36:56,381 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:36:56,381 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:36:56,381 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcmp_malloc.i_Iteration1_Lasso [2021-10-15 19:36:56,381 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:36:56,381 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:36:56,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:56,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:36:57,596 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:36:57,604 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:36:57,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:36:57,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:36:57,610 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:36:57,619 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 [2021-10-15 19:36:57,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:36:57,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:36:57,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:36:57,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:36:57,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:36:57,632 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:36:57,632 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:36:57,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 19:36:57,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:36:57,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-15 19:36:57,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:36:57,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:36:57,677 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:36:57,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 19:36:57,680 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 [2021-10-15 19:36:57,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:36:57,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:36:57,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:36:57,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:36:57,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:36:57,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:36:57,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:36:57,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:36:57,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-15 19:36:57,722 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:36:57,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:36:57,727 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:36:57,733 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 [2021-10-15 19:36:57,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:36:57,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:36:57,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:36:57,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:36:57,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:36:57,743 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:36:57,743 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:36:57,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 19:36:57,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:36:57,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-15 19:36:57,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:36:57,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:36:57,771 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:36:57,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 19:36:57,783 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 [2021-10-15 19:36:57,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:36:57,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:36:57,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:36:57,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:36:57,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:36:57,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:36:57,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:36:57,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:36:57,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 19:36:57,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:36:57,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:36:57,862 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:36:57,868 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 [2021-10-15 19:36:57,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:36:57,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:36:57,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:36:57,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:36:57,881 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:36:57,881 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:36:57,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 19:36:57,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:36:57,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 19:36:57,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:36:57,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:36:57,942 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:36:57,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 19:36:57,948 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 [2021-10-15 19:36:57,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:36:57,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:36:57,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:36:57,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:36:57,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:36:57,989 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:36:58,014 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:36:58,121 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-10-15 19:36:58,122 INFO L444 ModelExtractionUtils]: 21 out of 40 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-10-15 19:36:58,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:36:58,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:36:58,151 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:36:58,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 19:36:58,201 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:36:58,223 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 19:36:58,223 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:36:58,224 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcmp_~s2.offset, v_rep(select #length ULTIMATE.start_cstrcmp_~s1.base)_1) = -1*ULTIMATE.start_cstrcmp_~s2.offset + 1*v_rep(select #length ULTIMATE.start_cstrcmp_~s1.base)_1 Supporting invariants [] [2021-10-15 19:36:58,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 19:36:58,304 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2021-10-15 19:36:58,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:36:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:36:58,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-15 19:36:58,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:36:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:36:58,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-15 19:36:58,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:36:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:36:58,471 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 [2021-10-15 19:36:58,472 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 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) [2021-10-15 19:36:58,537 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 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) Result 32 states and 41 transitions. Complement of second has 5 states. [2021-10-15 19:36:58,538 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 [2021-10-15 19:36:58,539 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2021-10-15 19:36:58,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2021-10-15 19:36:58,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-15 19:36:58,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:36:58,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-15 19:36:58,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:36:58,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-15 19:36:58,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:36:58,546 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 41 transitions. [2021-10-15 19:36:58,551 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:36:58,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2021-10-15 19:36:58,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 19:36:58,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 19:36:58,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 19:36:58,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:36:58,555 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:36:58,555 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:36:58,555 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:36:58,555 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:36:58,555 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 19:36:58,555 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:36:58,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 19:36:58,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:36:58 BoogieIcfgContainer [2021-10-15 19:36:58,560 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:36:58,560 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:36:58,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:36:58,560 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:36:58,561 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:36:55" (3/4) ... [2021-10-15 19:36:58,564 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:36:58,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:36:58,566 INFO L168 Benchmark]: Toolchain (without parser) took 4416.23 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 72.5 MB in the beginning and 67.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:36:58,567 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 104.9 MB. Free memory is still 58.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:36:58,567 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.08 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 72.3 MB in the beginning and 92.3 MB in the end (delta: -20.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:36:58,568 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.75 ms. Allocated memory is still 125.8 MB. Free memory was 92.3 MB in the beginning and 90.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:36:58,568 INFO L168 Benchmark]: Boogie Preprocessor took 23.30 ms. Allocated memory is still 125.8 MB. Free memory was 90.7 MB in the beginning and 89.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:36:58,569 INFO L168 Benchmark]: RCFGBuilder took 390.59 ms. Allocated memory is still 125.8 MB. Free memory was 89.1 MB in the beginning and 78.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:36:58,569 INFO L168 Benchmark]: BuchiAutomizer took 3482.98 ms. Allocated memory is still 125.8 MB. Free memory was 78.6 MB in the beginning and 67.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:36:58,570 INFO L168 Benchmark]: Witness Printer took 4.47 ms. Allocated memory is still 125.8 MB. Free memory is still 67.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:36:58,573 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 104.9 MB. Free memory is still 58.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 464.08 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 72.3 MB in the beginning and 92.3 MB in the end (delta: -20.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.75 ms. Allocated memory is still 125.8 MB. Free memory was 92.3 MB in the beginning and 90.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.30 ms. Allocated memory is still 125.8 MB. Free memory was 90.7 MB in the beginning and 89.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 390.59 ms. Allocated memory is still 125.8 MB. Free memory was 89.1 MB in the beginning and 78.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3482.98 ms. Allocated memory is still 125.8 MB. Free memory was 78.6 MB in the beginning and 67.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.47 ms. Allocated memory is still 125.8 MB. Free memory is still 67.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s2 + unknown-#length-unknown[s1] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 15 SDtfs, 27 SDslu, 8 SDs, 0 SdLazy, 7 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital204 mio100 ax100 hnf100 lsp97 ukn83 mio100 lsp47 div100 bol100 ite100 ukn100 eq192 hnf88 smp100 dnf145 smp89 tf100 neg95 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 19:36:58,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 19:36:58,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953ba421-664b-44b1-9dd7-b97c117fd3fa/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...