./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.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_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/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_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/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_df5f185d-a90d-43b5-9648-b619171e332d/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 2f8c9504db0ceae8da468539322e1d0ba6c4e9f7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:18:36,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:18:36,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:18:36,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:18:36,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:18:36,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:18:36,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:18:36,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:18:36,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:18:36,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:18:36,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:18:36,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:18:36,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:18:36,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:18:36,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:18:36,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:18:36,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:18:36,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:18:36,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:18:36,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:18:36,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:18:36,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:18:36,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:18:36,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:18:36,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:18:36,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:18:36,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:18:36,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:18:36,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:18:36,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:18:36,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:18:36,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:18:36,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:18:36,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:18:36,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:18:36,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:18:36,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:18:36,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:18:36,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:18:36,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:18:36,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:18:36,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-15 20:18:36,953 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:18:36,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:18:36,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:18:36,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:18:36,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:18:36,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:18:36,958 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:18:36,958 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 20:18:36,959 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 20:18:36,959 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 20:18:36,960 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 20:18:36,961 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 20:18:36,961 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 20:18:36,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:18:36,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 20:18:36,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:18:36,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:18:36,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 20:18:36,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 20:18:36,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 20:18:36,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:18:36,963 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 20:18:36,963 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:18:36,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 20:18:36,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:18:36,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:18:36,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:18:36,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:18:36,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:18:36,968 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 20:18:36,968 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_df5f185d-a90d-43b5-9648-b619171e332d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f8c9504db0ceae8da468539322e1d0ba6c4e9f7 [2021-10-15 20:18:37,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:18:37,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:18:37,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:18:37,347 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:18:37,347 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:18:37,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2021-10-15 20:18:37,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/data/5c784b3da/788c0b2fdde0415aaf9cf39c83ae9de8/FLAG8266d2fa8 [2021-10-15 20:18:38,013 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:18:38,014 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2021-10-15 20:18:38,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/data/5c784b3da/788c0b2fdde0415aaf9cf39c83ae9de8/FLAG8266d2fa8 [2021-10-15 20:18:38,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/data/5c784b3da/788c0b2fdde0415aaf9cf39c83ae9de8 [2021-10-15 20:18:38,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:18:38,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:18:38,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:18:38,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:18:38,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:18:38,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:18:38" (1/1) ... [2021-10-15 20:18:38,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5594ce2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38, skipping insertion in model container [2021-10-15 20:18:38,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:18:38" (1/1) ... [2021-10-15 20:18:38,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:18:38,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:18:38,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:18:38,700 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:18:38,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:18:38,798 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:18:38,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38 WrapperNode [2021-10-15 20:18:38,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:18:38,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:18:38,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:18:38,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:18:38,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38" (1/1) ... [2021-10-15 20:18:38,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38" (1/1) ... [2021-10-15 20:18:38,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:18:38,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:18:38,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:18:38,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:18:38,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38" (1/1) ... [2021-10-15 20:18:38,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38" (1/1) ... [2021-10-15 20:18:38,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38" (1/1) ... [2021-10-15 20:18:38,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38" (1/1) ... [2021-10-15 20:18:38,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38" (1/1) ... [2021-10-15 20:18:38,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38" (1/1) ... [2021-10-15 20:18:38,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38" (1/1) ... [2021-10-15 20:18:38,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:18:38,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:18:38,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:18:38,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:18:38,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38" (1/1) ... [2021-10-15 20:18:38,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:38,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:38,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:38,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 20:18:39,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 20:18:39,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 20:18:39,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:18:39,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 20:18:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:18:39,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:18:39,355 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:18:39,355 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-15 20:18:39,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:18:39 BoogieIcfgContainer [2021-10-15 20:18:39,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:18:39,359 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 20:18:39,359 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 20:18:39,363 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 20:18:39,364 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:18:39,364 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 08:18:38" (1/3) ... [2021-10-15 20:18:39,366 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@642fd767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:18:39, skipping insertion in model container [2021-10-15 20:18:39,366 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:18:39,367 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:18:38" (2/3) ... [2021-10-15 20:18:39,367 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@642fd767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:18:39, skipping insertion in model container [2021-10-15 20:18:39,367 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:18:39,368 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:18:39" (3/3) ... [2021-10-15 20:18:39,369 INFO L389 chiAutomizerObserver]: Analyzing ICFG Velroyen-alloca.i [2021-10-15 20:18:39,422 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 20:18:39,422 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 20:18:39,423 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 20:18:39,423 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 20:18:39,423 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 20:18:39,423 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 20:18:39,423 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 20:18:39,423 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 20:18:39,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:18:39,469 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-15 20:18:39,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:18:39,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:18:39,488 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 20:18:39,495 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-15 20:18:39,496 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 20:18:39,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:18:39,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-15 20:18:39,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:18:39,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:18:39,503 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 20:18:39,503 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-15 20:18:39,510 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~nondet3, main_#t~mem5, main_#t~mem6, main_#t~short7, main_#t~mem8, main_#t~mem9, main_#t~mem10, main_#t~mem4, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call write~int(main_#t~nondet3, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet3; 7#L552-3true [2021-10-15 20:18:39,511 INFO L793 eck$LassoCheckResult]: Loop: 7#L552-3true call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 11#L551-1true assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 13#L552true assume !main_#t~short7; 3#L552-2true assume !main_#t~short7;havoc main_#t~mem5;havoc main_#t~mem6;havoc main_#t~short7;call write~int(0, main_~x~0.base, main_~x~0.offset, 4); 7#L552-3true [2021-10-15 20:18:39,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:39,518 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-15 20:18:39,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:39,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475367263] [2021-10-15 20:18:39,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:39,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:39,639 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:18:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:39,675 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:18:39,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:39,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1144151, now seen corresponding path program 1 times [2021-10-15 20:18:39,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:39,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561150148] [2021-10-15 20:18:39,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:39,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:39,702 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:18:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:39,717 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:18:39,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:39,720 INFO L82 PathProgramCache]: Analyzing trace with hash 889571353, now seen corresponding path program 1 times [2021-10-15 20:18:39,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:39,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555458870] [2021-10-15 20:18:39,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:39,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:39,741 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:18:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:39,764 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:18:40,148 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:18:40,149 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:18:40,149 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:18:40,149 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:18:40,150 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:18:40,150 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:40,150 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:18:40,150 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:18:40,150 INFO L133 ssoRankerPreferences]: Filename of dumped script: Velroyen-alloca.i_Iteration1_Lasso [2021-10-15 20:18:40,151 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:18:40,151 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:18:40,188 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 20:18:40,195 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 20:18:40,198 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 20:18:40,201 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 20:18:40,203 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 20:18:40,206 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 20:18:40,211 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 20:18:40,214 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 20:18:40,217 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 20:18:40,221 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 20:18:40,327 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 20:18:40,330 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 20:18:40,334 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 20:18:40,338 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 20:18:40,341 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 20:18:40,581 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:18:40,586 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:18:40,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:40,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:40,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:40,600 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 20:18:40,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:18:40,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:18:40,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:18:40,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:18:40,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:18:40,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:18:40,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:18:40,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 20:18:40,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:18:40,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 20:18:40,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:40,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:40,688 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:40,693 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 20:18:40,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:18:40,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:18:40,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:18:40,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:18:40,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:18:40,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 20:18:40,708 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:18:40,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:18:40,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:18:40,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 20:18:40,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:40,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:40,766 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:40,773 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 20:18:40,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:18:40,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:18:40,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:18:40,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:18:40,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:18:40,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 20:18:40,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:18:40,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:18:40,791 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:18:40,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 20:18:40,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:40,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:40,836 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:40,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 20:18:40,844 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 20:18:40,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:18:40,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:18:40,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:18:40,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:18:40,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:18:40,854 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:18:40,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:18:40,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:18:40,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 20:18:40,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:40,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:40,916 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:40,923 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 20:18:40,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:18:40,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:18:40,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:18:40,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:18:40,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:18:40,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:18:40,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:18:40,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 20:18:40,951 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:18:40,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 20:18:40,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:40,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:40,991 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:40,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 20:18:40,993 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 20:18:41,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:18:41,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:18:41,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:18:41,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:18:41,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:18:41,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:18:41,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:18:41,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 20:18:41,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:41,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:41,068 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:41,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 20:18:41,071 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 20:18:41,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:18:41,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:18:41,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:18:41,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:18:41,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:18:41,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:18:41,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:18:41,103 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:18:41,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 20:18:41,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:41,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:41,145 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:41,158 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 20:18:41,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:18:41,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:18:41,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:18:41,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:18:41,172 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:18:41,172 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:18:41,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 20:18:41,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:18:41,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-15 20:18:41,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:41,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:41,240 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:41,244 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 20:18:41,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 20:18:41,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:18:41,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:18:41,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:18:41,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:18:41,258 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:18:41,258 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:18:41,302 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:18:41,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 20:18:41,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:41,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:41,338 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:41,352 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 20:18:41,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:18:41,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:18:41,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:18:41,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:18:41,366 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:18:41,367 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:18:41,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 20:18:41,407 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:18:41,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 20:18:41,446 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:41,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:41,447 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:41,480 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 20:18:41,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 20:18:41,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:18:41,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:18:41,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:18:41,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:18:41,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:18:41,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:18:41,509 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:18:41,526 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-15 20:18:41,527 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-15 20:18:41,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:18:41,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:41,530 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:18:41,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 20:18:41,536 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:18:41,572 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 20:18:41,572 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:18:41,573 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 Supporting invariants [] [2021-10-15 20:18:41,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-15 20:18:41,622 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-15 20:18:41,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:41,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 20:18:41,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:18:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:41,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-15 20:18:41,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:18:41,844 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 20:18:41,862 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-15 20:18:41,864 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 20:18:41,980 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 42 states and 56 transitions. Complement of second has 10 states. [2021-10-15 20:18:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-15 20:18:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 20:18:41,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2021-10-15 20:18:41,985 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-15 20:18:41,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:18:41,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-15 20:18:41,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:18:41,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2021-10-15 20:18:41,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:18:41,988 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2021-10-15 20:18:41,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-15 20:18:41,996 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 23 states and 35 transitions. [2021-10-15 20:18:41,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-15 20:18:41,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-15 20:18:41,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 35 transitions. [2021-10-15 20:18:41,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 20:18:41,999 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2021-10-15 20:18:42,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 35 transitions. [2021-10-15 20:18:42,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2021-10-15 20:18:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.45) internal successors, (29), 19 states have internal predecessors, (29), 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 20:18:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2021-10-15 20:18:42,031 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2021-10-15 20:18:42,031 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2021-10-15 20:18:42,031 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 20:18:42,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2021-10-15 20:18:42,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-15 20:18:42,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:18:42,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:18:42,034 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-15 20:18:42,034 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-15 20:18:42,034 INFO L791 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 128#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~nondet3, main_#t~mem5, main_#t~mem6, main_#t~short7, main_#t~mem8, main_#t~mem9, main_#t~mem10, main_#t~mem4, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call write~int(main_#t~nondet3, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet3; 131#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 126#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 135#L552 assume main_#t~short7;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := main_#t~mem6 <= 35; 132#L552-2 [2021-10-15 20:18:42,034 INFO L793 eck$LassoCheckResult]: Loop: 132#L552-2 assume !main_#t~short7;havoc main_#t~mem5;havoc main_#t~mem6;havoc main_#t~short7;call write~int(0, main_~x~0.base, main_~x~0.offset, 4); 123#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 124#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 129#L552 assume !main_#t~short7; 132#L552-2 [2021-10-15 20:18:42,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:42,035 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2021-10-15 20:18:42,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:42,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597528509] [2021-10-15 20:18:42,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:42,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:42,058 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:18:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:42,100 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:18:42,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:42,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1943531, now seen corresponding path program 2 times [2021-10-15 20:18:42,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:42,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70139483] [2021-10-15 20:18:42,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:42,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:42,204 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 20:18:42,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:18:42,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70139483] [2021-10-15 20:18:42,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70139483] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:18:42,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:18:42,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:18:42,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551013214] [2021-10-15 20:18:42,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-15 20:18:42,218 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:18:42,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:18:42,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 20:18:42,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 20:18:42,224 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:18:42,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:18:42,267 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2021-10-15 20:18:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 20:18:42,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2021-10-15 20:18:42,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-15 20:18:42,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 27 transitions. [2021-10-15 20:18:42,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-15 20:18:42,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-15 20:18:42,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-10-15 20:18:42,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 20:18:42,276 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-15 20:18:42,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-10-15 20:18:42,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-15 20:18:42,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 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 20:18:42,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-10-15 20:18:42,279 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-15 20:18:42,279 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-15 20:18:42,280 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 20:18:42,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-10-15 20:18:42,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-15 20:18:42,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:18:42,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:18:42,281 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-15 20:18:42,281 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-15 20:18:42,281 INFO L791 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 182#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~nondet3, main_#t~mem5, main_#t~mem6, main_#t~short7, main_#t~mem8, main_#t~mem9, main_#t~mem10, main_#t~mem4, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call write~int(main_#t~nondet3, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet3; 185#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 180#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 183#L552 assume main_#t~short7;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := main_#t~mem6 <= 35; 186#L552-2 [2021-10-15 20:18:42,282 INFO L793 eck$LassoCheckResult]: Loop: 186#L552-2 assume main_#t~short7;havoc main_#t~mem5;havoc main_#t~mem6;havoc main_#t~short7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4); 187#L553 assume main_#t~mem8 < 0;havoc main_#t~mem8;call write~int(-5, main_~x~0.base, main_~x~0.offset, 4); 177#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 178#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 189#L552 assume !main_#t~short7; 186#L552-2 [2021-10-15 20:18:42,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:42,282 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 2 times [2021-10-15 20:18:42,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:42,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320753364] [2021-10-15 20:18:42,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:42,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:42,315 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:18:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:42,332 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:18:42,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:42,333 INFO L82 PathProgramCache]: Analyzing trace with hash 48745192, now seen corresponding path program 1 times [2021-10-15 20:18:42,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:42,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817142545] [2021-10-15 20:18:42,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:42,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:42,371 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 20:18:42,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:18:42,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817142545] [2021-10-15 20:18:42,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817142545] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:18:42,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:18:42,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:18:42,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068669133] [2021-10-15 20:18:42,373 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:18:42,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:18:42,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 20:18:42,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 20:18:42,385 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 9 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 20:18:42,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:18:42,434 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-10-15 20:18:42,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 20:18:42,435 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 40 transitions. [2021-10-15 20:18:42,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-10-15 20:18:42,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 29 states and 38 transitions. [2021-10-15 20:18:42,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-15 20:18:42,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2021-10-15 20:18:42,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2021-10-15 20:18:42,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 20:18:42,444 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2021-10-15 20:18:42,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2021-10-15 20:18:42,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2021-10-15 20:18:42,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 22 states have internal predecessors, (30), 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 20:18:42,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2021-10-15 20:18:42,448 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-10-15 20:18:42,448 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-10-15 20:18:42,448 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-15 20:18:42,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2021-10-15 20:18:42,449 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-15 20:18:42,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:18:42,449 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:18:42,449 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-15 20:18:42,449 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-15 20:18:42,450 INFO L791 eck$LassoCheckResult]: Stem: 237#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 238#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~nondet3, main_#t~mem5, main_#t~mem6, main_#t~short7, main_#t~mem8, main_#t~mem9, main_#t~mem10, main_#t~mem4, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call write~int(main_#t~nondet3, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet3; 246#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 242#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 250#L552 assume main_#t~short7;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := main_#t~mem6 <= 35; 247#L552-2 [2021-10-15 20:18:42,450 INFO L793 eck$LassoCheckResult]: Loop: 247#L552-2 assume main_#t~short7;havoc main_#t~mem5;havoc main_#t~mem6;havoc main_#t~short7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4); 248#L553 assume main_#t~mem8 < 0;havoc main_#t~mem8;call write~int(-5, main_~x~0.base, main_~x~0.offset, 4); 235#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 239#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 244#L552 assume main_#t~short7;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := main_#t~mem6 <= 35; 247#L552-2 [2021-10-15 20:18:42,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:42,450 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 3 times [2021-10-15 20:18:42,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:42,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671968101] [2021-10-15 20:18:42,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:42,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:42,481 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:18:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:42,493 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:18:42,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:42,494 INFO L82 PathProgramCache]: Analyzing trace with hash 48745190, now seen corresponding path program 1 times [2021-10-15 20:18:42,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:42,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027917928] [2021-10-15 20:18:42,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:42,495 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:42,503 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:18:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:42,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:18:42,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:42,514 INFO L82 PathProgramCache]: Analyzing trace with hash 707540352, now seen corresponding path program 1 times [2021-10-15 20:18:42,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:42,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014727123] [2021-10-15 20:18:42,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:42,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:42,529 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:18:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:42,546 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:18:43,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 08:18:43 BoogieIcfgContainer [2021-10-15 20:18:43,021 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 20:18:43,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:18:43,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:18:43,022 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:18:43,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:18:39" (3/4) ... [2021-10-15 20:18:43,026 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-15 20:18:43,087 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 20:18:43,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:18:43,089 INFO L168 Benchmark]: Toolchain (without parser) took 4808.23 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 47.8 MB in the beginning and 48.7 MB in the end (delta: -907.9 kB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:18:43,090 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 64.7 MB in the beginning and 64.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:18:43,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.07 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 47.6 MB in the beginning and 87.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 20:18:43,094 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.48 ms. Allocated memory is still 117.4 MB. Free memory was 87.5 MB in the beginning and 85.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:18:43,095 INFO L168 Benchmark]: Boogie Preprocessor took 26.34 ms. Allocated memory is still 117.4 MB. Free memory was 85.9 MB in the beginning and 84.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:18:43,096 INFO L168 Benchmark]: RCFGBuilder took 456.18 ms. Allocated memory is still 117.4 MB. Free memory was 84.9 MB in the beginning and 74.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 20:18:43,101 INFO L168 Benchmark]: BuchiAutomizer took 3662.20 ms. Allocated memory is still 117.4 MB. Free memory was 74.9 MB in the beginning and 50.2 MB in the end (delta: 24.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-10-15 20:18:43,101 INFO L168 Benchmark]: Witness Printer took 66.02 ms. Allocated memory is still 117.4 MB. Free memory was 50.2 MB in the beginning and 48.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:18:43,104 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 86.0 MB. Free memory was 64.7 MB in the beginning and 64.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 517.07 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 47.6 MB in the beginning and 87.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.48 ms. Allocated memory is still 117.4 MB. Free memory was 87.5 MB in the beginning and 85.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.34 ms. Allocated memory is still 117.4 MB. Free memory was 85.9 MB in the beginning and 84.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 456.18 ms. Allocated memory is still 117.4 MB. Free memory was 84.9 MB in the beginning and 74.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3662.20 ms. Allocated memory is still 117.4 MB. Free memory was 74.9 MB in the beginning and 50.2 MB in the end (delta: 24.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. * Witness Printer took 66.02 ms. Allocated memory is still 117.4 MB. Free memory was 50.2 MB in the beginning and 48.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (2 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 23 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 3. Automata minimization 20.9ms AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 23 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 17 SDslu, 31 SDs, 0 SdLazy, 75 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 100.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital92 mio100 ax119 hnf100 lsp78 ukn73 mio100 lsp39 div100 bol100 ite100 ukn100 eq179 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms 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: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 552]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16abde0c=2, NULL=0, \result=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7973b62f=0, NULL=0, x=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16abde0c=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@3dbdfad4=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@645d5f26=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@1cd8d1dd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@290e1a5a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@41efd682=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@15234e26=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@604b19f6=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 552]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L549] int* x = __builtin_alloca (sizeof(int)); [L550] *x = __VERIFIER_nondet_int() [L551] EXPR \read(*x) [L551] COND TRUE *x != 0 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 Loop: [L552] COND TRUE -5 <= *x && *x <= 35 [L553] EXPR \read(*x) [L553] COND TRUE *x < 0 [L554] *x = -5 [L551] EXPR \read(*x) [L551] COND TRUE *x != 0 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-15 20:18:43,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5f185d-a90d-43b5-9648-b619171e332d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...