./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Loop-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Loop-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 42637c171db16e9b30ddb9b81ced3fc8afebc727d3cebc25aef685f9a2d7301b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:21:25,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:21:25,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:21:25,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:21:25,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:21:25,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:21:25,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:21:25,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:21:25,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:21:25,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:21:25,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:21:25,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:21:25,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:21:25,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:21:25,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:21:25,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:21:25,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:21:25,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:21:25,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:21:25,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:21:25,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:21:25,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:21:25,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:21:25,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:21:25,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:21:25,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:21:25,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:21:25,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:21:25,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:21:25,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:21:25,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:21:25,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:21:25,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:21:25,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:21:25,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:21:25,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:21:25,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:21:25,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:21:25,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:21:25,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:21:25,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:21:25,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-21 17:21:25,148 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:21:25,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:21:25,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:21:25,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:21:25,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:21:25,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:21:25,151 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:21:25,151 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 17:21:25,151 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 17:21:25,152 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 17:21:25,152 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 17:21:25,152 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 17:21:25,152 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 17:21:25,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:21:25,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:21:25,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:21:25,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:21:25,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 17:21:25,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 17:21:25,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 17:21:25,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:21:25,154 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 17:21:25,155 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:21:25,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 17:21:25,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:21:25,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:21:25,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:21:25,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:21:25,157 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 17:21:25,157 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_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42637c171db16e9b30ddb9b81ced3fc8afebc727d3cebc25aef685f9a2d7301b [2022-11-21 17:21:25,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:21:25,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:21:25,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:21:25,504 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:21:25,507 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:21:25,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-restricted-15/Loop-2.c [2022-11-21 17:21:28,688 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:21:28,892 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:21:28,893 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/sv-benchmarks/c/termination-restricted-15/Loop-2.c [2022-11-21 17:21:28,899 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/data/5e1f0554e/3e410be784ee4393b2902a655b5952d1/FLAGc11e59a85 [2022-11-21 17:21:28,914 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/data/5e1f0554e/3e410be784ee4393b2902a655b5952d1 [2022-11-21 17:21:28,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:21:28,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:21:28,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:21:28,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:21:28,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:21:28,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:21:28" (1/1) ... [2022-11-21 17:21:28,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a5d103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:28, skipping insertion in model container [2022-11-21 17:21:28,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:21:28" (1/1) ... [2022-11-21 17:21:28,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:21:28,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:21:29,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:21:29,201 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:21:29,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:21:29,228 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:21:29,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29 WrapperNode [2022-11-21 17:21:29,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:21:29,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:21:29,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:21:29,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:21:29,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29" (1/1) ... [2022-11-21 17:21:29,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29" (1/1) ... [2022-11-21 17:21:29,263 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-11-21 17:21:29,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:21:29,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:21:29,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:21:29,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:21:29,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29" (1/1) ... [2022-11-21 17:21:29,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29" (1/1) ... [2022-11-21 17:21:29,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29" (1/1) ... [2022-11-21 17:21:29,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29" (1/1) ... [2022-11-21 17:21:29,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29" (1/1) ... [2022-11-21 17:21:29,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29" (1/1) ... [2022-11-21 17:21:29,284 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29" (1/1) ... [2022-11-21 17:21:29,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29" (1/1) ... [2022-11-21 17:21:29,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:21:29,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:21:29,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:21:29,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:21:29,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29" (1/1) ... [2022-11-21 17:21:29,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:21:29,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:21:29,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:21:29,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 17:21:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:21:29,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:21:29,430 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:21:29,432 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:21:29,485 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:21:29,490 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:21:29,490 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:21:29,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:21:29 BoogieIcfgContainer [2022-11-21 17:21:29,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:21:29,494 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 17:21:29,494 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 17:21:29,498 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 17:21:29,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:21:29,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 05:21:28" (1/3) ... [2022-11-21 17:21:29,500 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7745a2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 05:21:29, skipping insertion in model container [2022-11-21 17:21:29,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:21:29,501 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:29" (2/3) ... [2022-11-21 17:21:29,501 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7745a2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 05:21:29, skipping insertion in model container [2022-11-21 17:21:29,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:21:29,502 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:21:29" (3/3) ... [2022-11-21 17:21:29,503 INFO L332 chiAutomizerObserver]: Analyzing ICFG Loop-2.c [2022-11-21 17:21:29,561 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 17:21:29,562 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 17:21:29,562 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 17:21:29,562 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 17:21:29,562 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 17:21:29,563 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 17:21:29,563 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 17:21:29,563 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 17:21:29,567 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2022-11-21 17:21:29,585 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 17:21:29,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:21:29,586 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:21:29,591 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 17:21:29,592 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-21 17:21:29,592 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 17:21:29,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2022-11-21 17:21:29,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 17:21:29,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:21:29,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:21:29,594 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 17:21:29,594 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-21 17:21:29,602 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~a~0#1, main_~b~0#1, main_~i~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~i~0#1;main_~a~0#1 := 5;main_~b~0#1 := 3;main_~i~0#1 := 0; 4#L13-2true [2022-11-21 17:21:29,603 INFO L750 eck$LassoCheckResult]: Loop: 4#L13-2true assume !!(main_~i~0#1 < 10);main_~i~0#1 := main_~i~0#1; 4#L13-2true [2022-11-21 17:21:29,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:21:29,609 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-21 17:21:29,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:21:29,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238457142] [2022-11-21 17:21:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:21:29,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:21:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:21:29,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:21:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:21:29,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:21:29,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:21:29,718 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-11-21 17:21:29,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:21:29,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766421648] [2022-11-21 17:21:29,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:21:29,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:21:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:21:29,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:21:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:21:29,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:21:29,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:21:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-21 17:21:29,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:21:29,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128227940] [2022-11-21 17:21:29,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:21:29,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:21:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:21:29,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:21:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:21:29,751 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:21:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:21:29,842 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:21:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:21:29,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 05:21:29 BoogieIcfgContainer [2022-11-21 17:21:29,867 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 17:21:29,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:21:29,868 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:21:29,868 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:21:29,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:21:29" (3/4) ... [2022-11-21 17:21:29,871 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-21 17:21:29,911 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:21:29,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:21:29,916 INFO L158 Benchmark]: Toolchain (without parser) took 997.10ms. Allocated memory is still 178.3MB. Free memory was 148.3MB in the beginning and 113.6MB in the end (delta: 34.8MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2022-11-21 17:21:29,917 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 125.8MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:21:29,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.89ms. Allocated memory is still 178.3MB. Free memory was 148.3MB in the beginning and 143.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 17:21:29,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.62ms. Allocated memory is still 178.3MB. Free memory was 143.0MB in the beginning and 142.1MB in the end (delta: 914.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:21:29,919 INFO L158 Benchmark]: Boogie Preprocessor took 20.37ms. Allocated memory is still 178.3MB. Free memory was 142.1MB in the beginning and 140.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:21:29,920 INFO L158 Benchmark]: RCFGBuilder took 205.10ms. Allocated memory is still 178.3MB. Free memory was 140.9MB in the beginning and 132.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 17:21:29,920 INFO L158 Benchmark]: BuchiAutomizer took 373.33ms. Allocated memory is still 178.3MB. Free memory was 132.5MB in the beginning and 114.8MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 17:21:29,921 INFO L158 Benchmark]: Witness Printer took 46.89ms. Allocated memory is still 178.3MB. Free memory was 114.8MB in the beginning and 113.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:21:29,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 125.8MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.89ms. Allocated memory is still 178.3MB. Free memory was 148.3MB in the beginning and 143.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.62ms. Allocated memory is still 178.3MB. Free memory was 143.0MB in the beginning and 142.1MB in the end (delta: 914.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.37ms. Allocated memory is still 178.3MB. Free memory was 142.1MB in the beginning and 140.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 205.10ms. Allocated memory is still 178.3MB. Free memory was 140.9MB in the beginning and 132.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 373.33ms. Allocated memory is still 178.3MB. Free memory was 132.5MB in the beginning and 114.8MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 46.89ms. Allocated memory is still 178.3MB. Free memory was 114.8MB in the beginning and 113.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int a; [L7] int b; [L8] int i; [L9] a = 5 [L10] b = 3 [L11] i = 0 VAL [a=5, b=3, i=0] Loop: [L13] COND TRUE i < 10 [L13] i = i + 0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int a; [L7] int b; [L8] int i; [L9] a = 5 [L10] b = 3 [L11] i = 0 VAL [a=5, b=3, i=0] Loop: [L13] COND TRUE i < 10 [L13] i = i + 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-21 17:21:29,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40012fff-e587-4512-b70e-bf0dd3b1fd32/bin/uautomizer-vX5HgA9Q3a/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)