./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strchr-1.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_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/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_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strchr-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/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_9942f875-e87b-47a6-b2b2-c9803816f3a5/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 eae91250bd54f01dff46ae6aab61c3076a74de3d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:47:24,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:47:24,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:47:24,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:47:24,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:47:24,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:47:24,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:47:24,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:47:24,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:47:24,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:47:24,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:47:24,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:47:24,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:47:24,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:47:24,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:47:24,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:47:24,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:47:24,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:47:24,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:47:25,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:47:25,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:47:25,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:47:25,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:47:25,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:47:25,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:47:25,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:47:25,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:47:25,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:47:25,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:47:25,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:47:25,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:47:25,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:47:25,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:47:25,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:47:25,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:47:25,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:47:25,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:47:25,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:47:25,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:47:25,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:47:25,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:47:25,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-15 19:47:25,075 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:47:25,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:47:25,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:47:25,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:47:25,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:47:25,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:47:25,080 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:47:25,080 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:47:25,081 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:47:25,081 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:47:25,082 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:47:25,082 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:47:25,083 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:47:25,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:47:25,084 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:47:25,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:47:25,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:47:25,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:47:25,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:47:25,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:47:25,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:47:25,086 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:47:25,087 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:47:25,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:47:25,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:47:25,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:47:25,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:47:25,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:47:25,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:47:25,090 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:47:25,090 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_9942f875-e87b-47a6-b2b2-c9803816f3a5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eae91250bd54f01dff46ae6aab61c3076a74de3d [2021-10-15 19:47:25,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:47:25,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:47:25,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:47:25,510 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:47:25,511 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:47:25,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/termination-dietlibc/strchr-1.i [2021-10-15 19:47:25,628 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/data/f3c8198c8/9fb43adb3f634370890d84f45a5dd209/FLAGa082596aa [2021-10-15 19:47:26,353 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:47:26,354 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/sv-benchmarks/c/termination-dietlibc/strchr-1.i [2021-10-15 19:47:26,381 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/data/f3c8198c8/9fb43adb3f634370890d84f45a5dd209/FLAGa082596aa [2021-10-15 19:47:26,611 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/data/f3c8198c8/9fb43adb3f634370890d84f45a5dd209 [2021-10-15 19:47:26,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:47:26,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:47:26,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:47:26,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:47:26,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:47:26,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:47:26" (1/1) ... [2021-10-15 19:47:26,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dbeb763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:26, skipping insertion in model container [2021-10-15 19:47:26,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:47:26" (1/1) ... [2021-10-15 19:47:26,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:47:26,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:47:27,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:47:27,073 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:47:27,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:47:27,162 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:47:27,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:27 WrapperNode [2021-10-15 19:47:27,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:47:27,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:47:27,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:47:27,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:47:27,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:27" (1/1) ... [2021-10-15 19:47:27,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:27" (1/1) ... [2021-10-15 19:47:27,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:47:27,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:47:27,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:47:27,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:47:27,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:27" (1/1) ... [2021-10-15 19:47:27,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:27" (1/1) ... [2021-10-15 19:47:27,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:27" (1/1) ... [2021-10-15 19:47:27,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:27" (1/1) ... [2021-10-15 19:47:27,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:27" (1/1) ... [2021-10-15 19:47:27,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:27" (1/1) ... [2021-10-15 19:47:27,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:27" (1/1) ... [2021-10-15 19:47:27,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:47:27,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:47:27,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:47:27,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:47:27,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:27" (1/1) ... [2021-10-15 19:47:27,273 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:27,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:27,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:27,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:47:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:47:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:47:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:47:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:47:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:47:27,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:47:27,686 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:47:27,686 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-15 19:47:27,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:47:27 BoogieIcfgContainer [2021-10-15 19:47:27,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:47:27,691 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:47:27,691 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:47:27,695 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:47:27,696 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:47:27,697 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:47:26" (1/3) ... [2021-10-15 19:47:27,699 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65059a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:47:27, skipping insertion in model container [2021-10-15 19:47:27,699 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:47:27,699 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:47:27" (2/3) ... [2021-10-15 19:47:27,716 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65059a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:47:27, skipping insertion in model container [2021-10-15 19:47:27,716 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:47:27,716 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:47:27" (3/3) ... [2021-10-15 19:47:27,718 INFO L389 chiAutomizerObserver]: Analyzing ICFG strchr-1.i [2021-10-15 19:47:27,797 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:47:27,798 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:47:27,798 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:47:27,798 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:47:27,799 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:47:27,799 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:47:27,799 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:47:27,799 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:47:27,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.6875) internal successors, (27), 16 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 19:47:27,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-15 19:47:27,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:47:27,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:47:27,867 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-15 19:47:27,867 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:47:27,868 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:47:27,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.6875) internal successors, (27), 16 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 19:47:27,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-15 19:47:27,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:47:27,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:47:27,873 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-15 19:47:27,873 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:47:27,882 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~nondet16, main_#t~ret17.base, main_#t~ret17.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~the_int~0;main_~in_len~0 := main_#t~nondet14;havoc main_#t~nondet14; 18#L519true assume !(main_~in_len~0 < 1);call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~the_int~0 := main_#t~nondet16;havoc main_#t~nondet16;strchr_#in~t.base, strchr_#in~t.offset, strchr_#in~c := main_~in~0.base, main_~in~0.offset, main_~the_int~0;havoc strchr_#res.base, strchr_#res.offset;havoc strchr_#t~mem2, strchr_#t~mem3, strchr_#t~pre4.base, strchr_#t~pre4.offset, strchr_#t~mem5, strchr_#t~mem6, strchr_#t~pre7.base, strchr_#t~pre7.offset, strchr_#t~mem8, strchr_#t~mem9, strchr_#t~pre10.base, strchr_#t~pre10.offset, strchr_#t~mem11, strchr_#t~mem12, strchr_#t~pre13.base, strchr_#t~pre13.offset, strchr_~t.base, strchr_~t.offset, strchr_~c, strchr_~ch~0;strchr_~t.base, strchr_~t.offset := strchr_#in~t.base, strchr_#in~t.offset;strchr_~c := strchr_#in~c;havoc strchr_~ch~0;strchr_~ch~0 := (if strchr_~c % 256 <= 127 then strchr_~c % 256 else strchr_~c % 256 - 256); 14#L509-2true [2021-10-15 19:47:27,883 INFO L793 eck$LassoCheckResult]: Loop: 14#L509-2true assume !false;call strchr_#t~mem2 := read~int(strchr_~t.base, strchr_~t.offset, 1); 17#L510true assume !(strchr_#t~mem2 == strchr_~ch~0);havoc strchr_#t~mem2;call strchr_#t~mem3 := read~int(strchr_~t.base, strchr_~t.offset, 1); 9#L510-2true assume !(0 == strchr_#t~mem3);havoc strchr_#t~mem3;strchr_#t~pre4.base, strchr_#t~pre4.offset := strchr_~t.base, 1 + strchr_~t.offset;strchr_~t.base, strchr_~t.offset := strchr_~t.base, 1 + strchr_~t.offset;havoc strchr_#t~pre4.base, strchr_#t~pre4.offset;call strchr_#t~mem5 := read~int(strchr_~t.base, strchr_~t.offset, 1); 5#L511true assume !(strchr_#t~mem5 == strchr_~ch~0);havoc strchr_#t~mem5;call strchr_#t~mem6 := read~int(strchr_~t.base, strchr_~t.offset, 1); 11#L511-2true assume !(0 == strchr_#t~mem6);havoc strchr_#t~mem6;strchr_#t~pre7.base, strchr_#t~pre7.offset := strchr_~t.base, 1 + strchr_~t.offset;strchr_~t.base, strchr_~t.offset := strchr_~t.base, 1 + strchr_~t.offset;havoc strchr_#t~pre7.base, strchr_#t~pre7.offset;call strchr_#t~mem8 := read~int(strchr_~t.base, strchr_~t.offset, 1); 16#L512true assume !(strchr_#t~mem8 == strchr_~ch~0);havoc strchr_#t~mem8;call strchr_#t~mem9 := read~int(strchr_~t.base, strchr_~t.offset, 1); 6#L512-2true assume !(0 == strchr_#t~mem9);havoc strchr_#t~mem9;strchr_#t~pre10.base, strchr_#t~pre10.offset := strchr_~t.base, 1 + strchr_~t.offset;strchr_~t.base, strchr_~t.offset := strchr_~t.base, 1 + strchr_~t.offset;havoc strchr_#t~pre10.base, strchr_#t~pre10.offset;call strchr_#t~mem11 := read~int(strchr_~t.base, strchr_~t.offset, 1); 15#L513true assume !(strchr_#t~mem11 == strchr_~ch~0);havoc strchr_#t~mem11;call strchr_#t~mem12 := read~int(strchr_~t.base, strchr_~t.offset, 1); 13#L513-2true assume !(0 == strchr_#t~mem12);havoc strchr_#t~mem12;strchr_#t~pre13.base, strchr_#t~pre13.offset := strchr_~t.base, 1 + strchr_~t.offset;strchr_~t.base, strchr_~t.offset := strchr_~t.base, 1 + strchr_~t.offset;havoc strchr_#t~pre13.base, strchr_#t~pre13.offset; 14#L509-2true [2021-10-15 19:47:27,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:47:27,891 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-15 19:47:27,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:47:27,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166359141] [2021-10-15 19:47:27,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:47:27,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:47:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:47:28,117 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:47:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:47:28,190 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:47:28,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:47:28,194 INFO L82 PathProgramCache]: Analyzing trace with hash 563131458, now seen corresponding path program 1 times [2021-10-15 19:47:28,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:47:28,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099170163] [2021-10-15 19:47:28,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:47:28,199 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:47:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:47:28,262 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:47:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:47:28,320 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:47:28,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:47:28,338 INFO L82 PathProgramCache]: Analyzing trace with hash -208288001, now seen corresponding path program 1 times [2021-10-15 19:47:28,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:47:28,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318872197] [2021-10-15 19:47:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:47:28,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:47:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:47:28,390 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:47:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:47:28,437 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:47:29,437 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:47:29,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:47:29,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:47:29,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:47:29,438 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:47:29,438 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:29,439 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:47:29,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:47:29,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: strchr-1.i_Iteration1_Lasso [2021-10-15 19:47:29,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:47:29,439 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:47:29,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:29,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:47:30,539 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2021-10-15 19:47:40,433 WARN L207 SmtUtils]: Spent 9.58 s on a formula simplification. DAG size of input: 295 DAG size of output: 185 [2021-10-15 19:47:40,500 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:47:40,506 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:47:40,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:40,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:40,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:40,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 19:47:40,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:40,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:40,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:47:40,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:40,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:40,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:40,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:47:40,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:47:40,553 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:40,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:40,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:40,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:40,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:40,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 19:47:40,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:40,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:40,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:47:40,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:40,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:40,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:40,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:47:40,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:47:40,606 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:40,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-15 19:47:40,634 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:40,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:40,636 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:40,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 19:47:40,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:40,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:40,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:47:40,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:40,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:40,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:40,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:47:40,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:47:40,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:40,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-15 19:47:40,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:40,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:40,691 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:40,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 19:47:40,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:40,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:40,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:47:40,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:40,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:40,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:40,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:47:40,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:47:40,724 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:40,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:40,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:40,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:40,758 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:40,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 19:47:40,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:40,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:40,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:40,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:40,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:40,773 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:47:40,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:47:40,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:40,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:40,805 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:40,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:40,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:40,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 19:47:40,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:40,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:40,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:47:40,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:40,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:40,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:40,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:47:40,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:47:40,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:40,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:40,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:40,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:40,883 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:40,893 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:40,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:40,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:47:40,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:40,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:40,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:40,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:47:40,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:47:40,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 19:47:40,923 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:40,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:40,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:40,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:40,964 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:40,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 19:47:40,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:40,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:40,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:47:40,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:40,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:40,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:40,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:47:40,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:47:40,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:41,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-15 19:47:41,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:41,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:41,005 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:41,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 19:47:41,008 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:41,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:41,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:47:41,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:41,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:41,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:41,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:47:41,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:47:41,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:41,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:41,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:41,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:41,053 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:41,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 19:47:41,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:41,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:41,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:47:41,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:41,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:41,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:41,068 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:47:41,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:47:41,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:41,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:41,094 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:41,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:41,096 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:41,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 19:47:41,098 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:41,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:41,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:47:41,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:41,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:41,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:41,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:47:41,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:47:41,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:41,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:41,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:41,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:41,142 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:41,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 19:47:41,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:41,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:41,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:41,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:41,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:41,156 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:47:41,156 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:47:41,185 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:41,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:41,214 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:41,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:41,215 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:41,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 19:47:41,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:41,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:41,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:47:41,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:41,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:41,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:41,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:47:41,227 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:47:41,228 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:41,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:41,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:41,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:41,254 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:41,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-15 19:47:41,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:41,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:41,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:41,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:41,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:41,276 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:47:41,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:47:41,285 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:41,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:41,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:41,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:41,315 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:41,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-15 19:47:41,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:41,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:41,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:41,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:41,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:41,330 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:47:41,330 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:47:41,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:47:41,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:41,360 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:41,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:41,361 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:41,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-15 19:47:41,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:47:41,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:47:41,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:47:41,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:47:41,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:47:41,384 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:47:41,384 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:47:41,413 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:47:41,448 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-10-15 19:47:41,448 INFO L444 ModelExtractionUtils]: 14 out of 25 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-15 19:47:41,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:47:41,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:47:41,460 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:47:41,520 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:47:41,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-15 19:47:41,539 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 19:47:41,539 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:47:41,540 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strchr_~t.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc15.base)_1) = -1*ULTIMATE.start_strchr_~t.offset + 2*v_rep(select #length ULTIMATE.start_main_#t~malloc15.base)_1 Supporting invariants [] [2021-10-15 19:47:41,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:41,635 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2021-10-15 19:47:41,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:47:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:47:41,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-15 19:47:41,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:47:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:47:41,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-15 19:47:41,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:47:42,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:47:42,040 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-15 19:47:42,042 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.6875) internal successors, (27), 16 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) Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:47:42,209 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.6875) internal successors, (27), 16 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). Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 40 states and 59 transitions. Complement of second has 10 states. [2021-10-15 19:47:42,210 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 19:47:42,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:47:42,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2021-10-15 19:47:42,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 3 letters. Loop has 9 letters. [2021-10-15 19:47:42,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:47:42,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 12 letters. Loop has 9 letters. [2021-10-15 19:47:42,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:47:42,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 3 letters. Loop has 18 letters. [2021-10-15 19:47:42,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:47:42,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 59 transitions. [2021-10-15 19:47:42,225 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:47:42,228 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2021-10-15 19:47:42,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 19:47:42,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 19:47:42,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 19:47:42,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:47:42,231 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:47:42,231 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:47:42,232 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:47:42,232 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:47:42,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 19:47:42,232 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:47:42,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 19:47:42,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:47:42 BoogieIcfgContainer [2021-10-15 19:47:42,240 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:47:42,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:47:42,241 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:47:42,241 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:47:42,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:47:27" (3/4) ... [2021-10-15 19:47:42,245 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:47:42,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:47:42,247 INFO L168 Benchmark]: Toolchain (without parser) took 15629.13 ms. Allocated memory was 107.0 MB in the beginning and 201.3 MB in the end (delta: 94.4 MB). Free memory was 72.7 MB in the beginning and 83.1 MB in the end (delta: -10.4 MB). Peak memory consumption was 84.9 MB. Max. memory is 16.1 GB. [2021-10-15 19:47:42,248 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 107.0 MB. Free memory is still 60.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:47:42,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.27 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 72.7 MB in the beginning and 106.2 MB in the end (delta: -33.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:47:42,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.49 ms. Allocated memory is still 136.3 MB. Free memory was 106.2 MB in the beginning and 104.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:47:42,250 INFO L168 Benchmark]: Boogie Preprocessor took 35.39 ms. Allocated memory is still 136.3 MB. Free memory was 104.1 MB in the beginning and 102.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:47:42,251 INFO L168 Benchmark]: RCFGBuilder took 429.61 ms. Allocated memory is still 136.3 MB. Free memory was 102.9 MB in the beginning and 92.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:47:42,252 INFO L168 Benchmark]: BuchiAutomizer took 14549.20 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 91.5 MB in the beginning and 83.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 75.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:47:42,253 INFO L168 Benchmark]: Witness Printer took 5.01 ms. Allocated memory is still 201.3 MB. Free memory is still 83.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:47:42,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 107.0 MB. Free memory is still 60.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 542.27 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 72.7 MB in the beginning and 106.2 MB in the end (delta: -33.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.49 ms. Allocated memory is still 136.3 MB. Free memory was 106.2 MB in the beginning and 104.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.39 ms. Allocated memory is still 136.3 MB. Free memory was 104.1 MB in the beginning and 102.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 429.61 ms. Allocated memory is still 136.3 MB. Free memory was 102.9 MB in the beginning and 92.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 14549.20 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 91.5 MB in the beginning and 83.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 75.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.01 ms. Allocated memory is still 201.3 MB. Free memory is still 83.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * t + 2 * unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 13.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 29 SDslu, 20 SDs, 0 SdLazy, 29 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 54.3ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital207 mio100 ax100 hnf99 lsp108 ukn92 mio100 lsp42 div126 bol100 ite100 ukn100 eq168 hnf80 smp82 dnf6956 smp42 tf100 neg76 sie161 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 19:47:42,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-15 19:47:42,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9942f875-e87b-47a6-b2b2-c9803816f3a5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...