./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 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/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_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/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_3a319004-8974-4369-89dc-832acdd4487d/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 07a5e6dd5643b3fa45a0834b073ae31072ea61ed37e28ad858159ff6ad70dce7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:44:04,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:44:04,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:44:04,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:44:04,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:44:04,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:44:04,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:44:05,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:44:05,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:44:05,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:44:05,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:44:05,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:44:05,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:44:05,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:44:05,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:44:05,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:44:05,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:44:05,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:44:05,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:44:05,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:44:05,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:44:05,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:44:05,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:44:05,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:44:05,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:44:05,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:44:05,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:44:05,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:44:05,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:44:05,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:44:05,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:44:05,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:44:05,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:44:05,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:44:05,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:44:05,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:44:05,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:44:05,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:44:05,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:44:05,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:44:05,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:44:05,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 18:44:05,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:44:05,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:44:05,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:44:05,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:44:05,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:44:05,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:44:05,115 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:44:05,115 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 18:44:05,116 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 18:44:05,116 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 18:44:05,116 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 18:44:05,117 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 18:44:05,117 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 18:44:05,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:44:05,118 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:44:05,118 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:44:05,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:44:05,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:44:05,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:44:05,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 18:44:05,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 18:44:05,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 18:44:05,120 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:44:05,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:44:05,120 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 18:44:05,121 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:44:05,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 18:44:05,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:44:05,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:44:05,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:44:05,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:44:05,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:44:05,124 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 18:44:05,124 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_3a319004-8974-4369-89dc-832acdd4487d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07a5e6dd5643b3fa45a0834b073ae31072ea61ed37e28ad858159ff6ad70dce7 [2021-11-13 18:44:05,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:44:05,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:44:05,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:44:05,439 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:44:05,440 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:44:05,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c [2021-11-13 18:44:05,512 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/data/a02594397/c27a2ffdb70e4b959ee9ad406b536f57/FLAGbe238a7a8 [2021-11-13 18:44:06,068 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:44:06,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c [2021-11-13 18:44:06,075 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/data/a02594397/c27a2ffdb70e4b959ee9ad406b536f57/FLAGbe238a7a8 [2021-11-13 18:44:06,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/data/a02594397/c27a2ffdb70e4b959ee9ad406b536f57 [2021-11-13 18:44:06,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:44:06,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:44:06,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:44:06,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:44:06,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:44:06,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:44:06" (1/1) ... [2021-11-13 18:44:06,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d24a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06, skipping insertion in model container [2021-11-13 18:44:06,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:44:06" (1/1) ... [2021-11-13 18:44:06,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:44:06,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:44:06,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:44:06,665 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:44:06,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:44:06,694 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:44:06,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06 WrapperNode [2021-11-13 18:44:06,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:44:06,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:44:06,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:44:06,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:44:06,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06" (1/1) ... [2021-11-13 18:44:06,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06" (1/1) ... [2021-11-13 18:44:06,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:44:06,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:44:06,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:44:06,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:44:06,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06" (1/1) ... [2021-11-13 18:44:06,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06" (1/1) ... [2021-11-13 18:44:06,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06" (1/1) ... [2021-11-13 18:44:06,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06" (1/1) ... [2021-11-13 18:44:06,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06" (1/1) ... [2021-11-13 18:44:06,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06" (1/1) ... [2021-11-13 18:44:06,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06" (1/1) ... [2021-11-13 18:44:06,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:44:06,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:44:06,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:44:06,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:44:06,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06" (1/1) ... [2021-11-13 18:44:06,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:44:06,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:44:06,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:44:06,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 18:44:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:44:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:44:07,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:44:07,032 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:44:07,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:44:07 BoogieIcfgContainer [2021-11-13 18:44:07,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:44:07,036 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 18:44:07,036 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 18:44:07,040 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 18:44:07,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:44:07,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:44:06" (1/3) ... [2021-11-13 18:44:07,045 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56f063fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:44:07, skipping insertion in model container [2021-11-13 18:44:07,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:44:07,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:06" (2/3) ... [2021-11-13 18:44:07,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56f063fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:44:07, skipping insertion in model container [2021-11-13 18:44:07,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:44:07,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:44:07" (3/3) ... [2021-11-13 18:44:07,048 INFO L388 chiAutomizerObserver]: Analyzing ICFG dijkstra1-both-nt.c [2021-11-13 18:44:07,105 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 18:44:07,105 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 18:44:07,106 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 18:44:07,106 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 18:44:07,106 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 18:44:07,106 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 18:44:07,106 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 18:44:07,107 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 18:44:07,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 18:44:07,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-13 18:44:07,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:44:07,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:44:07,153 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-13 18:44:07,153 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:44:07,153 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 18:44:07,153 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 18:44:07,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-13 18:44:07,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:44:07,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:44:07,155 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-13 18:44:07,155 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:44:07,161 INFO L791 eck$LassoCheckResult]: Stem: 4#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_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 8#L40true assume main_~q~0#1 > main_~n~0#1; 9#L51-1true [2021-11-13 18:44:07,162 INFO L793 eck$LassoCheckResult]: Loop: 9#L51-1true assume !!(main_~r~0#1 < 2 * main_~p~0#1 + main_~q~0#1); 5#L51true assume !(4 * (if main_~q~0#1 < 0 && 0 != main_~q~0#1 % 4 then 1 + main_~q~0#1 / 4 else main_~q~0#1 / 4) == main_~q~0#1 && 2 * (if main_~p~0#1 < 0 && 0 != main_~p~0#1 % 2 then 1 + main_~p~0#1 / 2 else main_~p~0#1 / 2) == main_~p~0#1); 9#L51-1true [2021-11-13 18:44:07,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:07,167 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-13 18:44:07,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:44:07,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033427078] [2021-11-13 18:44:07,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:07,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:44:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:44:07,273 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:44:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:44:07,297 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:44:07,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:07,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1420, now seen corresponding path program 1 times [2021-11-13 18:44:07,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:44:07,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937365468] [2021-11-13 18:44:07,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:07,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:44:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:44:07,325 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:44:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:44:07,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:44:07,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:07,345 INFO L85 PathProgramCache]: Analyzing trace with hash 28693997, now seen corresponding path program 1 times [2021-11-13 18:44:07,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:44:07,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153686890] [2021-11-13 18:44:07,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:07,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:44:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:44:07,366 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:44:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:44:07,390 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:44:07,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 06:44:07 BoogieIcfgContainer [2021-11-13 18:44:07,761 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 18:44:07,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:44:07,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:44:07,763 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:44:07,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:44:07" (3/4) ... [2021-11-13 18:44:07,766 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-13 18:44:07,820 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:44:07,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:44:07,823 INFO L158 Benchmark]: Toolchain (without parser) took 1379.49ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.2MB in the beginning and 53.4MB in the end (delta: 3.8MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2021-11-13 18:44:07,823 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:44:07,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.59ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.1MB in the beginning and 88.6MB in the end (delta: -31.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:44:07,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.10ms. Allocated memory is still 111.1MB. Free memory was 88.6MB in the beginning and 87.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:44:07,832 INFO L158 Benchmark]: Boogie Preprocessor took 23.15ms. Allocated memory is still 111.1MB. Free memory was 87.0MB in the beginning and 86.1MB in the end (delta: 883.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:44:07,833 INFO L158 Benchmark]: RCFGBuilder took 276.62ms. Allocated memory is still 111.1MB. Free memory was 86.1MB in the beginning and 77.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:44:07,834 INFO L158 Benchmark]: BuchiAutomizer took 725.57ms. Allocated memory is still 111.1MB. Free memory was 77.7MB in the beginning and 55.1MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-13 18:44:07,835 INFO L158 Benchmark]: Witness Printer took 58.40ms. Allocated memory is still 111.1MB. Free memory was 55.1MB in the beginning and 53.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:44:07,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.59ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.1MB in the beginning and 88.6MB in the end (delta: -31.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.10ms. Allocated memory is still 111.1MB. Free memory was 88.6MB in the beginning and 87.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.15ms. Allocated memory is still 111.1MB. Free memory was 87.0MB in the beginning and 86.1MB in the end (delta: 883.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 276.62ms. Allocated memory is still 111.1MB. Free memory was 86.1MB in the beginning and 77.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 725.57ms. Allocated memory is still 111.1MB. Free memory was 77.7MB in the beginning and 55.1MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 58.40ms. Allocated memory is still 111.1MB. Free memory was 55.1MB in the beginning and 53.4MB in the end (delta: 1.7MB). 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 41]: 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 {h=0, q=1, r=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68fc354=0, p=0, n=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 41]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L22] int n, p, q, r, h; [L24] n = __VERIFIER_nondet_int() [L26] p = 0 [L27] q = 1 [L28] r = n [L29] h = 0 [L40] COND TRUE q > n Loop: [L41] COND TRUE r < 2 * p + q [L51] COND FALSE !(4 * (q / 4) == q && 2 * (p / 2) == p) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-13 18:44:07,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a319004-8974-4369-89dc-832acdd4487d/bin/uautomizer-YU5uOKAj3y/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)