./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b1ee78e0ef345a64f8c7caca77413516ce68186d78e333a5564d6417b0fa920 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:50:59,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:50:59,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:50:59,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:50:59,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:50:59,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:50:59,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:50:59,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:50:59,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:50:59,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:50:59,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:50:59,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:50:59,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:50:59,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:50:59,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:50:59,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:50:59,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:50:59,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:50:59,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:50:59,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:50:59,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:50:59,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:50:59,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:50:59,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:50:59,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:50:59,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:50:59,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:50:59,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:50:59,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:50:59,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:50:59,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:50:59,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:50:59,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:50:59,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:50:59,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:50:59,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:50:59,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:50:59,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:50:59,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:50:59,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:50:59,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:50:59,729 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 22:50:59,778 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:50:59,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:50:59,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:50:59,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:50:59,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:50:59,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:50:59,781 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:50:59,782 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 22:50:59,782 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 22:50:59,782 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 22:50:59,783 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 22:50:59,783 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 22:50:59,784 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 22:50:59,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:50:59,784 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:50:59,784 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:50:59,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:50:59,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:50:59,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:50:59,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 22:50:59,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 22:50:59,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 22:50:59,786 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:50:59,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:50:59,786 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 22:50:59,787 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:50:59,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 22:50:59,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:50:59,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:50:59,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:50:59,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:50:59,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:50:59,790 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 22:50:59,791 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_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b1ee78e0ef345a64f8c7caca77413516ce68186d78e333a5564d6417b0fa920 [2021-10-28 22:51:00,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:51:00,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:51:00,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:51:00,120 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:51:00,121 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:51:00,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i [2021-10-28 22:51:00,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/data/d05a0e55c/55c9c47b236b46f292ee9b68f5313bab/FLAGbb65e6a83 [2021-10-28 22:51:00,848 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:51:00,850 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i [2021-10-28 22:51:00,873 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/data/d05a0e55c/55c9c47b236b46f292ee9b68f5313bab/FLAGbb65e6a83 [2021-10-28 22:51:01,106 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/data/d05a0e55c/55c9c47b236b46f292ee9b68f5313bab [2021-10-28 22:51:01,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:51:01,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:51:01,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:51:01,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:51:01,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:51:01,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:51:01" (1/1) ... [2021-10-28 22:51:01,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a817cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01, skipping insertion in model container [2021-10-28 22:51:01,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:51:01" (1/1) ... [2021-10-28 22:51:01,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:51:01,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:51:01,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:51:01,490 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:51:01,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:51:01,557 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:51:01,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01 WrapperNode [2021-10-28 22:51:01,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:51:01,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:51:01,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:51:01,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:51:01,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01" (1/1) ... [2021-10-28 22:51:01,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01" (1/1) ... [2021-10-28 22:51:01,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:51:01,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:51:01,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:51:01,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:51:01,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01" (1/1) ... [2021-10-28 22:51:01,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01" (1/1) ... [2021-10-28 22:51:01,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01" (1/1) ... [2021-10-28 22:51:01,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01" (1/1) ... [2021-10-28 22:51:01,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01" (1/1) ... [2021-10-28 22:51:01,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01" (1/1) ... [2021-10-28 22:51:01,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01" (1/1) ... [2021-10-28 22:51:01,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:51:01,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:51:01,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:51:01,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:51:01,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01" (1/1) ... [2021-10-28 22:51:01,692 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:01,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:01,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:01,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 22:51:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 22:51:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:51:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:51:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:51:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:51:01,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:51:02,067 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:51:02,067 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 22:51:02,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:02 BoogieIcfgContainer [2021-10-28 22:51:02,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:51:02,071 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 22:51:02,071 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 22:51:02,074 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 22:51:02,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:51:02,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 10:51:01" (1/3) ... [2021-10-28 22:51:02,077 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f405336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:51:02, skipping insertion in model container [2021-10-28 22:51:02,077 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:51:02,077 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:01" (2/3) ... [2021-10-28 22:51:02,078 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f405336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:51:02, skipping insertion in model container [2021-10-28 22:51:02,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:51:02,078 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:02" (3/3) ... [2021-10-28 22:51:02,080 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrlen-alloca-2.i [2021-10-28 22:51:02,125 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 22:51:02,125 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 22:51:02,126 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 22:51:02,126 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 22:51:02,126 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 22:51:02,126 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 22:51:02,126 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 22:51:02,126 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 22:51:02,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2021-10-28 22:51:02,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 22:51:02,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:51:02,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:51:02,166 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 22:51:02,166 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:51:02,167 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 22:51:02,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2021-10-28 22:51:02,169 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 22:51:02,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:51:02,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:51:02,170 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 22:51:02,170 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:51:02,177 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~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 15#L522true assume !(main_~length1~0 < 1); 12#L522-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 10#L527-3true [2021-10-28 22:51:02,178 INFO L793 eck$LassoCheckResult]: Loop: 10#L527-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13#L527-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10#L527-3true [2021-10-28 22:51:02,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:02,184 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-10-28 22:51:02,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:02,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980834575] [2021-10-28 22:51:02,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:02,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:02,326 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:02,374 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:02,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:02,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2021-10-28 22:51:02,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:02,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053286880] [2021-10-28 22:51:02,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:02,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:02,404 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:02,428 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:02,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:02,438 INFO L85 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2021-10-28 22:51:02,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:02,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293639131] [2021-10-28 22:51:02,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:02,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:02,480 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:02,517 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:02,862 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:51:02,863 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:51:02,863 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:51:02,863 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:51:02,864 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:51:02,864 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:02,864 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:51:02,864 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:51:02,864 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-2.i_Iteration1_Lasso [2021-10-28 22:51:02,864 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:51:02,865 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:51:02,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:02,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:02,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:02,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:02,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:02,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:03,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:03,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:03,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:03,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:03,279 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:51:03,284 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:51:03,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:03,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:03,290 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:03,296 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 [2021-10-28 22:51:03,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:03,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:03,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:03,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:03,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:03,309 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:03,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:03,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 22:51:03,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:03,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 22:51:03,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:03,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:03,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:03,374 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 [2021-10-28 22:51:03,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:03,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:03,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:03,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:03,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:03,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:03,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:03,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 22:51:03,406 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:03,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:03,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:03,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:03,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:03,451 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 [2021-10-28 22:51:03,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:03,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:03,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:03,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:03,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:03,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:03,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:03,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 22:51:03,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:03,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:03,505 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:03,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:03,506 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:03,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 22:51:03,511 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 [2021-10-28 22:51:03,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:03,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:03,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:03,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:03,522 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:03,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:03,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:03,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:03,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:03,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:03,561 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:03,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 22:51:03,563 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 [2021-10-28 22:51:03,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:03,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:03,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:03,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:03,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:03,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:03,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:03,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:03,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:03,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:03,621 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:03,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 22:51:03,626 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 [2021-10-28 22:51:03,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:03,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:03,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:03,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:03,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:03,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:03,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:03,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:03,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:03,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:03,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:03,661 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:03,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 22:51:03,664 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 [2021-10-28 22:51:03,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:03,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:03,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:03,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:03,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:03,682 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:03,703 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:51:03,740 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-10-28 22:51:03,741 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-10-28 22:51:03,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:03,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:03,753 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:03,783 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:51:03,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 22:51:03,811 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:51:03,811 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:51:03,812 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-28 22:51:03,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:03,867 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-28 22:51:03,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:03,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:51:03,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:03,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:51:03,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:03,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:03,988 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 22:51:03,989 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:04,040 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 42 transitions. Complement of second has 7 states. [2021-10-28 22:51:04,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 22:51:04,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:04,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2021-10-28 22:51:04,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 22:51:04,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:04,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 22:51:04,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:04,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-28 22:51:04,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:04,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2021-10-28 22:51:04,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:51:04,054 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 10 states and 13 transitions. [2021-10-28 22:51:04,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-28 22:51:04,056 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 22:51:04,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-10-28 22:51:04,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:04,057 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 22:51:04,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-10-28 22:51:04,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-28 22:51:04,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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) [2021-10-28 22:51:04,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-28 22:51:04,083 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 22:51:04,083 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 22:51:04,083 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 22:51:04,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-28 22:51:04,084 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:51:04,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:51:04,084 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:51:04,085 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 22:51:04,085 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:51:04,085 INFO L791 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 106#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 112#L522 assume !(main_~length1~0 < 1); 107#L522-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 108#L527-3 assume !(main_~i~0 < main_~length1~0 - 1); 111#L527-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 104#L516-3 [2021-10-28 22:51:04,085 INFO L793 eck$LassoCheckResult]: Loop: 104#L516-3 call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 103#L516-1 assume !!(0 != cstrlen_#t~mem2);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, 1 + cstrlen_#t~post3.offset;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 104#L516-3 [2021-10-28 22:51:04,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:04,086 INFO L85 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2021-10-28 22:51:04,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:04,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811866829] [2021-10-28 22:51:04,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:04,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:04,105 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:04,127 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:04,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:04,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1862, now seen corresponding path program 1 times [2021-10-28 22:51:04,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:04,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615885080] [2021-10-28 22:51:04,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:04,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:04,156 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:04,161 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:04,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:04,169 INFO L85 PathProgramCache]: Analyzing trace with hash 176738514, now seen corresponding path program 1 times [2021-10-28 22:51:04,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:04,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987034532] [2021-10-28 22:51:04,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:04,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:04,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:04,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:04,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987034532] [2021-10-28 22:51:04,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987034532] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:04,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:04,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:51:04,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362496158] [2021-10-28 22:51:04,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:04,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:51:04,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:51:04,405 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:04,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:04,492 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2021-10-28 22:51:04,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 22:51:04,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2021-10-28 22:51:04,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:51:04,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 11 states and 13 transitions. [2021-10-28 22:51:04,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 22:51:04,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 22:51:04,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-10-28 22:51:04,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:04,497 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-28 22:51:04,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-10-28 22:51:04,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-28 22:51:04,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 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) [2021-10-28 22:51:04,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-10-28 22:51:04,500 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-28 22:51:04,500 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-28 22:51:04,500 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 22:51:04,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2021-10-28 22:51:04,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:51:04,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:51:04,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:51:04,503 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:04,503 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:51:04,503 INFO L791 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 150#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 154#L522 assume !(main_~length1~0 < 1); 147#L522-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 148#L527-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 151#L527-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 152#L527-3 assume !(main_~i~0 < main_~length1~0 - 1); 153#L527-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 146#L516-3 [2021-10-28 22:51:04,503 INFO L793 eck$LassoCheckResult]: Loop: 146#L516-3 call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 145#L516-1 assume !!(0 != cstrlen_#t~mem2);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, 1 + cstrlen_#t~post3.offset;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 146#L516-3 [2021-10-28 22:51:04,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:04,504 INFO L85 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2021-10-28 22:51:04,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:04,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507349325] [2021-10-28 22:51:04,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:04,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:04,531 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:04,558 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:04,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:04,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1862, now seen corresponding path program 2 times [2021-10-28 22:51:04,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:04,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139574324] [2021-10-28 22:51:04,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:04,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:04,574 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:04,583 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:04,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1899811660, now seen corresponding path program 1 times [2021-10-28 22:51:04,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:04,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126034252] [2021-10-28 22:51:04,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:04,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:04,604 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:04,632 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:04,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:05,093 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:51:05,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:51:05,093 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:51:05,093 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:51:05,093 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:51:05,093 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:05,093 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:51:05,094 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:51:05,094 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-2.i_Iteration3_Lasso [2021-10-28 22:51:05,094 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:51:05,094 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:51:05,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:05,595 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:51:05,595 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:51:05,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:05,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:05,599 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:05,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 22:51:05,604 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 [2021-10-28 22:51:05,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:05,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:05,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:05,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:05,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:05,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:05,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:05,630 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:05,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:05,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:05,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:05,671 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:05,680 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:51:05,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:05,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:05,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:05,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:05,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:05,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:05,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:05,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 22:51:05,706 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:05,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:05,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:05,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:05,744 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:05,749 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 [2021-10-28 22:51:05,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:05,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:05,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:05,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:05,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:05,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:05,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:05,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 22:51:05,770 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:05,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:05,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:05,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:05,808 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:05,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 22:51:05,812 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 [2021-10-28 22:51:05,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:05,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:05,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:05,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:05,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:05,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:05,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:05,829 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:05,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:05,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:05,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:05,871 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:05,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 22:51:05,875 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 [2021-10-28 22:51:05,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:05,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:05,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:05,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:05,885 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:05,885 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:05,902 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:05,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:05,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:05,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:05,939 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:05,951 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 [2021-10-28 22:51:05,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:05,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:05,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:05,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:05,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:05,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:05,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:05,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 22:51:05,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:06,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:06,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:06,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:06,016 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:06,023 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 [2021-10-28 22:51:06,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:06,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:06,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:06,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:06,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:06,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:06,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:06,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 22:51:06,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:06,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:06,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:06,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:06,087 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:06,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 22:51:06,089 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 [2021-10-28 22:51:06,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:06,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:06,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:06,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:06,098 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:06,099 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:06,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:06,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:06,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:06,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:06,163 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:06,171 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 [2021-10-28 22:51:06,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 22:51:06,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:06,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:06,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:06,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:06,183 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:06,183 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:06,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:06,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:06,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:06,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:06,236 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:06,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 22:51:06,241 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 [2021-10-28 22:51:06,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:06,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:06,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:06,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:06,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:06,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:06,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:06,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:06,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:06,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:06,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:06,281 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:06,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 22:51:06,283 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 [2021-10-28 22:51:06,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:06,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:06,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:06,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:06,294 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:06,295 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:06,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:06,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:06,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:06,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:06,347 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:06,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 22:51:06,351 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 [2021-10-28 22:51:06,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:06,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:06,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:06,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:06,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:06,369 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:06,394 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:51:06,451 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2021-10-28 22:51:06,451 INFO L444 ModelExtractionUtils]: 15 out of 31 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-10-28 22:51:06,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:06,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:06,469 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:06,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 22:51:06,474 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:51:06,495 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:51:06,496 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:51:06,496 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 Supporting invariants [] [2021-10-28 22:51:06,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:06,542 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2021-10-28 22:51:06,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:06,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:51:06,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:06,614 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:51:06,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:06,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:06,650 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 22:51:06,650 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-28 22:51:06,678 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 12 states and 15 transitions. Complement of second has 4 states. [2021-10-28 22:51:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 22:51:06,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-28 22:51:06,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-28 22:51:06,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 22:51:06,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:06,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-28 22:51:06,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:06,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-28 22:51:06,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:06,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2021-10-28 22:51:06,682 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:51:06,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2021-10-28 22:51:06,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 22:51:06,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 22:51:06,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 22:51:06,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:06,683 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:51:06,683 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:51:06,683 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:51:06,683 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 22:51:06,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 22:51:06,683 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:51:06,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 22:51:06,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 10:51:06 BoogieIcfgContainer [2021-10-28 22:51:06,689 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 22:51:06,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:51:06,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:51:06,690 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:51:06,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:02" (3/4) ... [2021-10-28 22:51:06,693 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 22:51:06,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:51:06,695 INFO L168 Benchmark]: Toolchain (without parser) took 5580.83 ms. Allocated memory was 142.6 MB in the beginning and 172.0 MB in the end (delta: 29.4 MB). Free memory was 107.4 MB in the beginning and 132.5 MB in the end (delta: -25.2 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:06,695 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory was 46.2 MB in the beginning and 46.1 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:51:06,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.24 ms. Allocated memory is still 142.6 MB. Free memory was 107.4 MB in the beginning and 110.1 MB in the end (delta: -2.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:06,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.27 ms. Allocated memory is still 142.6 MB. Free memory was 110.1 MB in the beginning and 108.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:06,697 INFO L168 Benchmark]: Boogie Preprocessor took 53.60 ms. Allocated memory is still 142.6 MB. Free memory was 108.5 MB in the beginning and 107.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:51:06,698 INFO L168 Benchmark]: RCFGBuilder took 393.64 ms. Allocated memory is still 142.6 MB. Free memory was 107.2 MB in the beginning and 97.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:06,698 INFO L168 Benchmark]: BuchiAutomizer took 4618.53 ms. Allocated memory was 142.6 MB in the beginning and 172.0 MB in the end (delta: 29.4 MB). Free memory was 97.2 MB in the beginning and 132.5 MB in the end (delta: -35.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:51:06,698 INFO L168 Benchmark]: Witness Printer took 3.80 ms. Allocated memory is still 172.0 MB. Free memory is still 132.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:51:06,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory was 46.2 MB in the beginning and 46.1 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 446.24 ms. Allocated memory is still 142.6 MB. Free memory was 107.4 MB in the beginning and 110.1 MB in the end (delta: -2.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.27 ms. Allocated memory is still 142.6 MB. Free memory was 110.1 MB in the beginning and 108.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.60 ms. Allocated memory is still 142.6 MB. Free memory was 108.5 MB in the beginning and 107.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 393.64 ms. Allocated memory is still 142.6 MB. Free memory was 107.2 MB in the beginning and 97.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4618.53 ms. Allocated memory was 142.6 MB in the beginning and 172.0 MB in the end (delta: 29.4 MB). Free memory was 97.2 MB in the beginning and 132.5 MB in the end (delta: -35.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.80 ms. Allocated memory is still 172.0 MB. Free memory is still 132.5 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * p and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 26 SDtfs, 40 SDslu, 27 SDs, 0 SdLazy, 46 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital115 mio100 ax116 hnf99 lsp80 ukn85 mio100 lsp59 div100 bol100 ite100 ukn100 eq170 hnf90 smp96 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms 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! [2021-10-28 22:51:06,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:06,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e15b6f18-e6a1-4710-9a1c-1867150e81ef/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...