./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrlen.c --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_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/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_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrlen.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/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_04330d98-27d4-4d4a-aace-082c7a53ec4c/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 1e3ef20869762bcfb9d8151d96b8065864cd760e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 19:10:56,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:10:56,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:10:56,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:10:56,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:10:56,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:10:56,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:10:56,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:10:56,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:10:56,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:10:56,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:10:56,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:10:56,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:10:56,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:10:56,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:10:56,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:10:56,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:10:56,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:10:56,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:10:56,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:10:56,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:10:56,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:10:56,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:10:56,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:10:56,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:10:56,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:10:56,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:10:56,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:10:56,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:10:56,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:10:56,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:10:56,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:10:56,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:10:56,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:10:56,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:10:56,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:10:56,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:10:56,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:10:56,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:10:56,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:10:56,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:10:56,866 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-15 19:10:56,934 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:10:56,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:10:56,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:10:56,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:10:56,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:10:56,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:10:56,938 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:10:56,938 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:10:56,939 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:10:56,939 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:10:56,940 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:10:56,941 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:10:56,941 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:10:56,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:10:56,942 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:10:56,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:10:56,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:10:56,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:10:56,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:10:56,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:10:56,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:10:56,943 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:10:56,944 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:10:56,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:10:56,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:10:56,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:10:56,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:10:56,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:10:56,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:10:56,948 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:10:56,949 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_04330d98-27d4-4d4a-aace-082c7a53ec4c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e3ef20869762bcfb9d8151d96b8065864cd760e [2021-10-15 19:10:57,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:10:57,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:10:57,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:10:57,275 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:10:57,276 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:10:57,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/termination-crafted-lit/cstrlen.c [2021-10-15 19:10:57,382 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/data/0ca73546f/d40f15791f674ae794cce12c540a3d0d/FLAG499a16106 [2021-10-15 19:10:57,947 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:10:57,948 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/sv-benchmarks/c/termination-crafted-lit/cstrlen.c [2021-10-15 19:10:57,961 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/data/0ca73546f/d40f15791f674ae794cce12c540a3d0d/FLAG499a16106 [2021-10-15 19:10:58,289 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/data/0ca73546f/d40f15791f674ae794cce12c540a3d0d [2021-10-15 19:10:58,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:10:58,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:10:58,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:10:58,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:10:58,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:10:58,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:10:58" (1/1) ... [2021-10-15 19:10:58,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e57963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58, skipping insertion in model container [2021-10-15 19:10:58,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:10:58" (1/1) ... [2021-10-15 19:10:58,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:10:58,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:10:58,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:10:58,583 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:10:58,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:10:58,634 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:10:58,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58 WrapperNode [2021-10-15 19:10:58,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:10:58,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:10:58,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:10:58,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:10:58,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58" (1/1) ... [2021-10-15 19:10:58,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58" (1/1) ... [2021-10-15 19:10:58,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:10:58,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:10:58,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:10:58,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:10:58,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58" (1/1) ... [2021-10-15 19:10:58,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58" (1/1) ... [2021-10-15 19:10:58,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58" (1/1) ... [2021-10-15 19:10:58,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58" (1/1) ... [2021-10-15 19:10:58,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58" (1/1) ... [2021-10-15 19:10:58,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58" (1/1) ... [2021-10-15 19:10:58,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58" (1/1) ... [2021-10-15 19:10:58,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:10:58,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:10:58,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:10:58,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:10:58,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58" (1/1) ... [2021-10-15 19:10:58,765 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:10:58,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:10:58,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:10:58,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:10:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:10:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-15 19:10:58,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:10:58,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:10:58,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:10:59,099 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:10:59,100 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-15 19:10:59,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:10:59 BoogieIcfgContainer [2021-10-15 19:10:59,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:10:59,103 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:10:59,103 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:10:59,107 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:10:59,108 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:10:59,108 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:10:58" (1/3) ... [2021-10-15 19:10:59,110 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57302353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:10:59, skipping insertion in model container [2021-10-15 19:10:59,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:10:59,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:58" (2/3) ... [2021-10-15 19:10:59,111 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57302353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:10:59, skipping insertion in model container [2021-10-15 19:10:59,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:10:59,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:10:59" (3/3) ... [2021-10-15 19:10:59,112 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrlen.c [2021-10-15 19:10:59,161 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:10:59,161 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:10:59,161 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:10:59,161 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:10:59,161 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:10:59,161 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:10:59,162 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:10:59,162 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:10:59,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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) [2021-10-15 19:10:59,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:10:59,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:10:59,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:10:59,208 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-15 19:10:59,209 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:10:59,209 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:10:59,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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) [2021-10-15 19:10:59,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:10:59,212 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:10:59,212 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:10:59,212 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-15 19:10:59,229 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:10:59,236 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6#L-1true havoc main_#res;havoc main_#t~ret4.base, main_#t~ret4.offset, main_#t~ret5;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 10#L14true assume !(build_nondet_String_~length~0 < 1); 11#L14-2true call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 7#L19true main_#t~ret4.base, main_#t~ret4.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrlen_#in~s.base, cstrlen_#in~s.offset := main_#t~ret4.base, main_#t~ret4.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 12#L30-3true [2021-10-15 19:10:59,236 INFO L793 eck$LassoCheckResult]: Loop: 12#L30-3true call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 3#L30-1true assume !!(0 != cstrlen_#t~mem2);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, 1 + cstrlen_#t~post3.offset;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 12#L30-3true [2021-10-15 19:10:59,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:10:59,243 INFO L82 PathProgramCache]: Analyzing trace with hash 28695750, now seen corresponding path program 1 times [2021-10-15 19:10:59,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:10:59,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229416004] [2021-10-15 19:10:59,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:10:59,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:10:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:59,430 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:10:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:59,492 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:10:59,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:10:59,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1478, now seen corresponding path program 1 times [2021-10-15 19:10:59,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:10:59,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102886206] [2021-10-15 19:10:59,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:10:59,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:10:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:59,510 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:10:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:59,521 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:10:59,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:10:59,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812491, now seen corresponding path program 1 times [2021-10-15 19:10:59,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:10:59,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084358760] [2021-10-15 19:10:59,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:10:59,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:10:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:59,564 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:10:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:59,631 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:11:00,261 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:11:00,262 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:11:00,262 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:11:00,263 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:11:00,263 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:11:00,263 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:11:00,263 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:11:00,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:11:00,264 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen.c_Iteration1_Lasso [2021-10-15 19:11:00,264 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:11:00,264 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:11:00,290 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 19:11:00,296 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 19:11:00,300 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 19:11:00,303 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 19:11:00,308 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 19:11:00,311 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 19:11:00,314 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 19:11:00,555 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 19:11:00,559 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 19:11:00,563 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 19:11:00,566 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 19:11:00,570 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 19:11:01,087 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:11:01,095 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:11:01,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:11:01,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:11:01,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:11:01,105 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 19:11:01,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:11:01,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:11:01,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:11:01,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:11:01,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 19:11:01,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:11:01,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:11:01,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:11:01,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:11:01,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:11:01,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:11:01,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:11:01,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:11:01,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 19:11:01,206 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 19:11:01,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:11:01,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:11:01,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:11:01,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:11:01,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:11:01,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:11:01,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:11:01,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:11:01,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 19:11:01,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:11:01,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:11:01,279 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:11:01,289 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 19:11:01,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:11:01,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:11:01,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:11:01,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:11:01,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:11:01,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:11:01,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:11:01,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 19:11:01,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:11:01,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-15 19:11:01,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:11:01,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:11:01,359 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:11:01,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 19:11:01,362 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 19:11:01,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:11:01,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:11:01,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:11:01,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:11:01,376 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:11:01,376 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:11:01,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:11:01,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 19:11:01,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:11:01,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:11:01,457 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:11:01,466 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 19:11:01,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:11:01,477 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:11:01,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:11:01,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:11:01,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:11:01,479 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:11:01,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:11:01,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 19:11:01,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:11:01,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 19:11:01,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:11:01,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:11:01,530 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:11:01,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 19:11:01,533 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 19:11:01,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:11:01,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:11:01,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:11:01,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:11:01,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:11:01,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:11:01,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:11:01,581 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:11:01,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 19:11:01,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:11:01,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:11:01,628 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:11:01,634 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 19:11:01,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:11:01,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:11:01,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:11:01,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:11:01,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:11:01,658 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:11:01,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 19:11:01,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:11:01,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 19:11:01,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:11:01,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:11:01,714 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:11:01,722 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 19:11:01,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:11:01,734 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-15 19:11:01,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:11:01,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:11:01,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 19:11:01,750 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-15 19:11:01,750 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:11:01,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:11:01,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-15 19:11:01,825 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:11:01,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:11:01,827 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:11:01,834 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 19:11:01,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:11:01,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:11:01,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:11:01,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:11:01,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 19:11:01,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:11:01,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:11:01,893 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:11:01,957 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-15 19:11:01,958 INFO L444 ModelExtractionUtils]: 8 out of 31 variables were initially zero. Simplification set additionally 20 variables to zero. [2021-10-15 19:11:01,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:11:01,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:11:01,962 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:11:01,994 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:11:02,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 19:11:02,043 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 19:11:02,043 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:11:02,044 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_build_nondet_String_~nondetString~0.base)_1) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_build_nondet_String_~nondetString~0.base)_1 Supporting invariants [] [2021-10-15 19:11:02,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 19:11:02,100 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2021-10-15 19:11:02,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:11:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:11:02,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-15 19:11:02,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:11:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:11:02,267 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-15 19:11:02,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:11:02,318 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 19:11:02,342 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-15 19:11:02,344 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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) 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) [2021-10-15 19:11:02,435 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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). 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 24 states and 27 transitions. Complement of second has 6 states. [2021-10-15 19:11:02,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-15 19:11:02,438 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) [2021-10-15 19:11:02,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2021-10-15 19:11:02,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-15 19:11:02,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:11:02,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-15 19:11:02,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:11:02,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-15 19:11:02,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:11:02,452 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 27 transitions. [2021-10-15 19:11:02,460 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:11:02,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-10-15 19:11:02,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 19:11:02,466 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 19:11:02,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 19:11:02,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:11:02,467 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:11:02,477 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:11:02,479 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:11:02,480 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:11:02,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 19:11:02,480 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:11:02,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 19:11:02,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:11:02 BoogieIcfgContainer [2021-10-15 19:11:02,488 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:11:02,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:11:02,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:11:02,489 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:11:02,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:10:59" (3/4) ... [2021-10-15 19:11:02,494 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:11:02,495 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:11:02,496 INFO L168 Benchmark]: Toolchain (without parser) took 4193.36 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.2 MB in the beginning and 56.3 MB in the end (delta: 14.9 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:11:02,497 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 104.9 MB. Free memory was 59.0 MB in the beginning and 58.9 MB in the end (delta: 42.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:11:02,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.34 ms. Allocated memory is still 104.9 MB. Free memory was 71.0 MB in the beginning and 81.0 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:11:02,499 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.09 ms. Allocated memory is still 104.9 MB. Free memory was 81.0 MB in the beginning and 79.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:11:02,500 INFO L168 Benchmark]: Boogie Preprocessor took 54.65 ms. Allocated memory is still 104.9 MB. Free memory was 79.6 MB in the beginning and 78.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:11:02,501 INFO L168 Benchmark]: RCFGBuilder took 349.34 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 69.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:11:02,502 INFO L168 Benchmark]: BuchiAutomizer took 3384.83 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 69.1 MB in the beginning and 57.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:11:02,502 INFO L168 Benchmark]: Witness Printer took 6.09 ms. Allocated memory is still 125.8 MB. Free memory is still 56.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:11:02,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 104.9 MB. Free memory was 59.0 MB in the beginning and 58.9 MB in the end (delta: 42.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 329.34 ms. Allocated memory is still 104.9 MB. Free memory was 71.0 MB in the beginning and 81.0 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.09 ms. Allocated memory is still 104.9 MB. Free memory was 81.0 MB in the beginning and 79.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.65 ms. Allocated memory is still 104.9 MB. Free memory was 79.6 MB in the beginning and 78.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 349.34 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 69.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3384.83 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 69.1 MB in the beginning and 57.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. * Witness Printer took 6.09 ms. Allocated memory is still 125.8 MB. Free memory is still 56.3 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 * p + unknown-#length-unknown[nondetString] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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: 9 SDtfs, 15 SDslu, 7 SDs, 0 SdLazy, 7 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.5ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital124 mio100 ax100 hnf100 lsp95 ukn89 mio100 lsp47 div100 bol100 ite100 ukn100 eq191 hnf88 smp100 dnf112 smp93 tf100 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms VariablesStem: 7 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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 19:11:02,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 19:11:02,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04330d98-27d4-4d4a-aace-082c7a53ec4c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...