./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY --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 5ef0cd39c992d40bf3e567a881941ec0396584542a921ebe29fdfc04cd940c12 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:51:32,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:51:32,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:51:32,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:51:32,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:51:32,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:51:32,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:51:32,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:51:32,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:51:32,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:51:32,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:51:32,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:51:32,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:51:32,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:51:32,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:51:32,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:51:32,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:51:32,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:51:32,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:51:32,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:51:32,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:51:32,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:51:32,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:51:32,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:51:32,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:51:32,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:51:32,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:51:32,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:51:32,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:51:32,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:51:32,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:51:32,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:51:32,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:51:32,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:51:32,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:51:32,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:51:32,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:51:32,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:51:32,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:51:32,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:51:32,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:51:32,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-07 07:51:32,729 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:51:32,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:51:32,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:51:32,732 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:51:32,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:51:32,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:51:32,735 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:51:32,735 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 07:51:32,735 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 07:51:32,735 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 07:51:32,736 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 07:51:32,736 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 07:51:32,736 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 07:51:32,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:51:32,737 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:51:32,737 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:51:32,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:51:32,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:51:32,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:51:32,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 07:51:32,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 07:51:32,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 07:51:32,738 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:51:32,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:51:32,738 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 07:51:32,738 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:51:32,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 07:51:32,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:51:32,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:51:32,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:51:32,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:51:32,740 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:51:32,741 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 07:51:32,741 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_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ef0cd39c992d40bf3e567a881941ec0396584542a921ebe29fdfc04cd940c12 [2021-11-07 07:51:33,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:51:33,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:51:33,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:51:33,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:51:33,147 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:51:33,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c [2021-11-07 07:51:33,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/data/4a6ead7d4/365f54c754304e85b9245b15be33db41/FLAG449877298 [2021-11-07 07:51:33,904 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:51:33,905 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c [2021-11-07 07:51:33,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/data/4a6ead7d4/365f54c754304e85b9245b15be33db41/FLAG449877298 [2021-11-07 07:51:34,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/data/4a6ead7d4/365f54c754304e85b9245b15be33db41 [2021-11-07 07:51:34,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:51:34,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:51:34,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:51:34,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:51:34,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:51:34,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:51:34" (1/1) ... [2021-11-07 07:51:34,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4baeb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34, skipping insertion in model container [2021-11-07 07:51:34,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:51:34" (1/1) ... [2021-11-07 07:51:34,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:51:34,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:51:34,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:51:34,537 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:51:34,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:51:34,575 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:51:34,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34 WrapperNode [2021-11-07 07:51:34,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:51:34,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:51:34,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:51:34,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:51:34,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34" (1/1) ... [2021-11-07 07:51:34,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34" (1/1) ... [2021-11-07 07:51:34,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:51:34,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:51:34,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:51:34,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:51:34,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34" (1/1) ... [2021-11-07 07:51:34,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34" (1/1) ... [2021-11-07 07:51:34,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34" (1/1) ... [2021-11-07 07:51:34,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34" (1/1) ... [2021-11-07 07:51:34,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34" (1/1) ... [2021-11-07 07:51:34,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34" (1/1) ... [2021-11-07 07:51:34,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34" (1/1) ... [2021-11-07 07:51:34,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:51:34,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:51:34,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:51:34,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:51:34,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34" (1/1) ... [2021-11-07 07:51:34,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:34,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:34,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:34,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 07:51:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:51:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:51:34,994 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:51:34,995 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-07 07:51:34,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:51:34 BoogieIcfgContainer [2021-11-07 07:51:34,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:51:35,000 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 07:51:35,000 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 07:51:35,004 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 07:51:35,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:51:35,005 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 07:51:34" (1/3) ... [2021-11-07 07:51:35,008 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12b5eaf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:51:35, skipping insertion in model container [2021-11-07 07:51:35,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:51:35,008 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:34" (2/3) ... [2021-11-07 07:51:35,009 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12b5eaf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:51:35, skipping insertion in model container [2021-11-07 07:51:35,009 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:51:35,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:51:34" (3/3) ... [2021-11-07 07:51:35,011 INFO L389 chiAutomizerObserver]: Analyzing ICFG dijkstra1-both-nt.c [2021-11-07 07:51:35,088 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 07:51:35,088 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 07:51:35,088 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 07:51:35,089 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 07:51:35,089 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 07:51:35,089 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 07:51:35,089 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 07:51:35,089 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 07:51:35,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:51:35,130 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 07:51:35,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:51:35,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:51:35,138 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-07 07:51:35,139 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-07 07:51:35,139 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 07:51:35,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:51:35,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 07:51:35,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:51:35,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:51:35,141 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-07 07:51:35,141 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-07 07:51:35,149 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~n~0, main_~p~0, main_~q~0, main_~r~0, main_~h~0;havoc main_~n~0;havoc main_~p~0;havoc main_~q~0;havoc main_~r~0;havoc main_~h~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~p~0 := 0;main_~q~0 := 1;main_~r~0 := main_~n~0;main_~h~0 := 0; 8#L49true assume main_~q~0 > main_~n~0; 10#L60-1true [2021-11-07 07:51:35,150 INFO L793 eck$LassoCheckResult]: Loop: 10#L60-1true assume !!(main_~r~0 < 2 * main_~p~0 + main_~q~0); 6#L60true assume !(4 * (if main_~q~0 < 0 && 0 != main_~q~0 % 4 then 1 + main_~q~0 / 4 else main_~q~0 / 4) == main_~q~0 && 2 * (if main_~p~0 < 0 && 0 != main_~p~0 % 2 then 1 + main_~p~0 / 2 else main_~p~0 / 2) == main_~p~0); 10#L60-1true [2021-11-07 07:51:35,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:51:35,157 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-11-07 07:51:35,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:51:35,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202002290] [2021-11-07 07:51:35,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:51:35,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:51:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:51:35,270 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:51:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:51:35,294 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:51:35,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:51:35,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1388, now seen corresponding path program 1 times [2021-11-07 07:51:35,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:51:35,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208916921] [2021-11-07 07:51:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:51:35,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:51:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:51:35,325 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:51:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:51:35,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:51:35,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:51:35,346 INFO L85 PathProgramCache]: Analyzing trace with hash 957583, now seen corresponding path program 1 times [2021-11-07 07:51:35,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:51:35,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204288651] [2021-11-07 07:51:35,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:51:35,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:51:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:51:35,376 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:51:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:51:35,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:51:35,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 07:51:35 BoogieIcfgContainer [2021-11-07 07:51:35,937 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 07:51:35,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:51:35,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:51:35,938 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:51:35,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:51:34" (3/4) ... [2021-11-07 07:51:35,942 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-07 07:51:36,001 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 07:51:36,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:51:36,004 INFO L168 Benchmark]: Toolchain (without parser) took 1734.98 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 72.2 MB in the beginning and 93.2 MB in the end (delta: -21.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:51:36,005 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory is still 55.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:51:36,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.31 ms. Allocated memory is still 100.7 MB. Free memory was 72.2 MB in the beginning and 77.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:36,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.33 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 75.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:51:36,012 INFO L168 Benchmark]: Boogie Preprocessor took 22.85 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 74.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:36,014 INFO L168 Benchmark]: RCFGBuilder took 360.14 ms. Allocated memory is still 100.7 MB. Free memory was 74.6 MB in the beginning and 66.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:36,016 INFO L168 Benchmark]: BuchiAutomizer took 936.95 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 66.5 MB in the beginning and 95.2 MB in the end (delta: -28.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:36,017 INFO L168 Benchmark]: Witness Printer took 63.83 ms. Allocated memory is still 121.6 MB. Free memory was 95.2 MB in the beginning and 93.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:36,020 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory is still 55.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 294.31 ms. Allocated memory is still 100.7 MB. Free memory was 72.2 MB in the beginning and 77.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.33 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 75.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.85 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 74.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 360.14 ms. Allocated memory is still 100.7 MB. Free memory was 74.6 MB in the beginning and 66.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 936.95 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 66.5 MB in the beginning and 95.2 MB in the end (delta: -28.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. * Witness Printer took 63.83 ms. Allocated memory is still 121.6 MB. Free memory was 95.2 MB in the beginning and 93.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 0.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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: No data available 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 50]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {q=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@774560c7=0, p=0, \result=0, r=0, n=0, h=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 50]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L31] int n, p, q, r, h; [L33] n = __VERIFIER_nondet_int() [L35] p = 0 [L36] q = 1 [L37] r = n [L38] h = 0 [L49] COND TRUE q > n Loop: [L50] COND TRUE r < 2 * p + q [L60] COND FALSE !(4 * (q / 4) == q && 2 * (p / 2) == p) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-07 07:51:36,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b76b7ca8-78d2-4b85-926f-e4c56222377d/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)