./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/for_bounded_loop1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y --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 d362508cc6d10100af1abe34073a764b50319c9e1ae9c7cc9c70a242e3f5c8c4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:35:53,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:35:53,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:35:53,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:35:53,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:35:53,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:35:53,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:35:53,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:35:53,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:35:53,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:35:53,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:35:53,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:35:53,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:35:53,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:35:53,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:35:53,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:35:53,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:35:53,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:35:53,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:35:53,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:35:53,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:35:53,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:35:53,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:35:53,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:35:53,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:35:53,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:35:53,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:35:53,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:35:53,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:35:53,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:35:53,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:35:53,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:35:53,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:35:53,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:35:53,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:35:53,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:35:53,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:35:53,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:35:53,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:35:53,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:35:53,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:35:53,905 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 17:35:53,933 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:35:53,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:35:53,934 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:35:53,934 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:35:53,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:35:53,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:35:53,936 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:35:53,936 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 17:35:53,936 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 17:35:53,937 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 17:35:53,937 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 17:35:53,937 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 17:35:53,937 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 17:35:53,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:35:53,938 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:35:53,938 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:35:53,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:35:53,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:35:53,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:35:53,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 17:35:53,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 17:35:53,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 17:35:53,940 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:35:53,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:35:53,941 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 17:35:53,941 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:35:53,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 17:35:53,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:35:53,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:35:53,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:35:53,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:35:53,943 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:35:53,944 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 17:35:53,944 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_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d362508cc6d10100af1abe34073a764b50319c9e1ae9c7cc9c70a242e3f5c8c4 [2021-11-13 17:35:54,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:35:54,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:35:54,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:35:54,248 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:35:54,249 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:35:54,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/loops/for_bounded_loop1.c [2021-11-13 17:35:54,342 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/data/acbb2a775/d7cabf7769794211a73db24d106ec153/FLAG176e3c1f8 [2021-11-13 17:35:54,835 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:35:54,836 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/sv-benchmarks/c/loops/for_bounded_loop1.c [2021-11-13 17:35:54,850 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/data/acbb2a775/d7cabf7769794211a73db24d106ec153/FLAG176e3c1f8 [2021-11-13 17:35:55,204 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/data/acbb2a775/d7cabf7769794211a73db24d106ec153 [2021-11-13 17:35:55,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:35:55,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:35:55,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:35:55,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:35:55,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:35:55,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:35:55" (1/1) ... [2021-11-13 17:35:55,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77605d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55, skipping insertion in model container [2021-11-13 17:35:55,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:35:55" (1/1) ... [2021-11-13 17:35:55,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:35:55,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:35:55,426 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] [2021-11-13 17:35:55,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:35:55,448 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:35:55,462 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] [2021-11-13 17:35:55,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:35:55,482 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:35:55,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55 WrapperNode [2021-11-13 17:35:55,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:35:55,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:35:55,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:35:55,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:35:55,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55" (1/1) ... [2021-11-13 17:35:55,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55" (1/1) ... [2021-11-13 17:35:55,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:35:55,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:35:55,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:35:55,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:35:55,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55" (1/1) ... [2021-11-13 17:35:55,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55" (1/1) ... [2021-11-13 17:35:55,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55" (1/1) ... [2021-11-13 17:35:55,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55" (1/1) ... [2021-11-13 17:35:55,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55" (1/1) ... [2021-11-13 17:35:55,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55" (1/1) ... [2021-11-13 17:35:55,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55" (1/1) ... [2021-11-13 17:35:55,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:35:55,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:35:55,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:35:55,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:35:55,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55" (1/1) ... [2021-11-13 17:35:55,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:35:55,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:35:55,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:35:55,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 17:35:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:35:55,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:35:55,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:35:55,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:35:55,832 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:35:55,833 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 17:35:55,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:35:55 BoogieIcfgContainer [2021-11-13 17:35:55,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:35:55,836 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 17:35:55,836 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 17:35:55,840 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 17:35:55,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:35:55,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 05:35:55" (1/3) ... [2021-11-13 17:35:55,843 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78a45c67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 05:35:55, skipping insertion in model container [2021-11-13 17:35:55,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:35:55,843 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:55" (2/3) ... [2021-11-13 17:35:55,844 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78a45c67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 05:35:55, skipping insertion in model container [2021-11-13 17:35:55,844 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:35:55,844 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:35:55" (3/3) ... [2021-11-13 17:35:55,845 INFO L388 chiAutomizerObserver]: Analyzing ICFG for_bounded_loop1.c [2021-11-13 17:35:55,899 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 17:35:55,899 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 17:35:55,900 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 17:35:55,900 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 17:35:55,900 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 17:35:55,900 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 17:35:55,900 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 17:35:55,901 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 17:35:55,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-11-13 17:35:55,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-13 17:35:55,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:35:55,939 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:35:55,945 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-13 17:35:55,945 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:35:55,946 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 17:35:55,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-11-13 17:35:55,948 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-13 17:35:55,949 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:35:55,949 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:35:55,949 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-13 17:35:55,950 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:35:55,957 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(20);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_~x~0#1, main_~y~0#1, main_~n~0#1;main_~i~0#1 := 0;main_~x~0#1 := 0;main_~y~0#1 := 0;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 16#L21true assume !!(main_~n~0#1 > 0);main_~i~0#1 := 0; 19#L22-3true [2021-11-13 17:35:55,958 INFO L793 eck$LassoCheckResult]: Loop: 19#L22-3true assume !!(main_~i~0#1 < main_~n~0#1);main_~x~0#1 := main_~x~0#1 - main_~y~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 17#L10true assume !(0 == __VERIFIER_assert_~cond#1); 4#L10-2true assume { :end_inline___VERIFIER_assert } true;main_~y~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 6#L27true assume !!(0 != main_~y~0#1);main_~x~0#1 := main_~x~0#1 + main_~y~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 != main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 18#L10-3true assume !(0 == __VERIFIER_assert_~cond#1); 13#L10-5true assume { :end_inline___VERIFIER_assert } true; 11#L22-2true main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 19#L22-3true [2021-11-13 17:35:55,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:35:55,964 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-11-13 17:35:55,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:35:55,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250432220] [2021-11-13 17:35:55,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:35:55,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:35:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:35:56,081 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:35:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:35:56,134 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:35:56,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:35:56,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1470643718, now seen corresponding path program 1 times [2021-11-13 17:35:56,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:35:56,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842671198] [2021-11-13 17:35:56,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:35:56,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:35:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:35:56,183 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:35:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:35:56,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:35:56,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:35:56,207 INFO L85 PathProgramCache]: Analyzing trace with hash -720609289, now seen corresponding path program 1 times [2021-11-13 17:35:56,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:35:56,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042220723] [2021-11-13 17:35:56,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:35:56,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:35:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:35:56,239 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:35:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:35:56,273 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:35:56,610 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:35:56,611 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:35:56,611 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:35:56,612 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:35:56,612 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-13 17:35:56,612 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:35:56,612 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:35:56,612 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:35:56,612 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_bounded_loop1.c_Iteration1_Loop [2021-11-13 17:35:56,613 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:35:56,613 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:35:56,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:35:56,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:35:56,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:35:56,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:35:56,825 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:35:56,826 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-13 17:35:56,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:35:56,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:35:56,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:35:56,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:35:56,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:35:56,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-13 17:35:56,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:35:56,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:35:56,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:35:56,910 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:35:56,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 17:35:56,917 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:35:56,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-13 17:35:57,077 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-13 17:35:57,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-11-13 17:35:57,088 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:35:57,088 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:35:57,088 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:35:57,089 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:35:57,089 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 17:35:57,089 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:35:57,089 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:35:57,089 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:35:57,089 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_bounded_loop1.c_Iteration1_Loop [2021-11-13 17:35:57,089 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:35:57,090 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:35:57,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:35:57,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:35:57,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:35:57,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:35:57,242 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:35:57,248 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 17:35:57,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:35:57,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:35:57,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:35:57,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:35:57,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-13 17:35:57,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:35:57,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:35:57,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:35:57,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:35:57,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:35:57,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:35:57,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:35:57,291 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 17:35:57,300 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-13 17:35:57,301 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-13 17:35:57,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:35:57,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:35:57,305 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:35:57,313 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 17:35:57,313 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 17:35:57,313 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 17:35:57,314 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2021-11-13 17:35:57,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-13 17:35:57,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:35:57,356 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-13 17:35:57,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:35:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:57,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:35:57,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:35:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:57,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:35:57,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:35:57,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:35:57,628 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 [2021-11-13 17:35:57,629 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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 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) [2021-11-13 17:35:57,678 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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 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 60 states and 73 transitions. Complement of second has 7 states. [2021-11-13 17:35:57,679 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 [2021-11-13 17:35:57,685 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) [2021-11-13 17:35:57,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2021-11-13 17:35:57,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 3 letters. Loop has 7 letters. [2021-11-13 17:35:57,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:35:57,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 10 letters. Loop has 7 letters. [2021-11-13 17:35:57,691 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:35:57,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 3 letters. Loop has 14 letters. [2021-11-13 17:35:57,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:35:57,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 73 transitions. [2021-11-13 17:35:57,700 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 17:35:57,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 0 states and 0 transitions. [2021-11-13 17:35:57,707 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-13 17:35:57,708 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-13 17:35:57,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-13 17:35:57,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:35:57,709 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:35:57,709 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:35:57,710 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:35:57,710 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 17:35:57,710 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-13 17:35:57,710 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 17:35:57,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-13 17:35:57,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 05:35:57 BoogieIcfgContainer [2021-11-13 17:35:57,722 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 17:35:57,728 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 17:35:57,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 17:35:57,729 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 17:35:57,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:35:55" (3/4) ... [2021-11-13 17:35:57,734 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 17:35:57,734 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 17:35:57,737 INFO L158 Benchmark]: Toolchain (without parser) took 2527.29ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 57.8MB in the beginning and 61.8MB in the end (delta: -4.1MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2021-11-13 17:35:57,738 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 63.9MB in the beginning and 63.9MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:35:57,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.23ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 68.4MB in the end (delta: -10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 17:35:57,741 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.93ms. Allocated memory is still 92.3MB. Free memory was 68.4MB in the beginning and 67.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:35:57,747 INFO L158 Benchmark]: Boogie Preprocessor took 19.62ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 66.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:35:57,748 INFO L158 Benchmark]: RCFGBuilder took 294.10ms. Allocated memory is still 92.3MB. Free memory was 66.0MB in the beginning and 56.5MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 17:35:57,749 INFO L158 Benchmark]: BuchiAutomizer took 1886.64ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 56.5MB in the beginning and 61.8MB in the end (delta: -5.4MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-11-13 17:35:57,749 INFO L158 Benchmark]: Witness Printer took 6.23ms. Allocated memory is still 123.7MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:35:57,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 63.9MB in the beginning and 63.9MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.23ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 68.4MB in the end (delta: -10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.93ms. Allocated memory is still 92.3MB. Free memory was 68.4MB in the beginning and 67.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.62ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 66.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.10ms. Allocated memory is still 92.3MB. Free memory was 66.0MB in the beginning and 56.5MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1886.64ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 56.5MB in the beginning and 61.8MB in the end (delta: -5.4MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 6.23ms. Allocated memory is still 123.7MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + n and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 8.77ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 6.97ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 22 mSDtfsCounter, 6 mSolverCounterSat, 1.81ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital33 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq205 hnf92 smp100 dnf177 smp100 tf103 neg96 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 64ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-13 17:35:57,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:35:58,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5dd6118-ed94-4ec2-99ad-c23aee19b2a6/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE