./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU --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-9ad7fb2 [2021-11-02 22:40:45,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:40:45,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:40:45,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:40:45,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:40:45,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:40:45,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:40:45,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:40:45,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:40:45,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:40:45,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:40:45,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:40:45,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:40:45,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:40:45,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:40:45,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:40:45,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:40:45,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:40:45,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:40:45,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:40:45,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:40:45,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:40:45,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:40:45,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:40:45,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:40:45,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:40:45,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:40:45,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:40:45,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:40:45,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:40:45,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:40:45,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:40:45,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:40:45,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:40:45,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:40:45,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:40:45,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:40:45,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:40:45,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:40:45,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:40:45,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:40:45,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:40:46,029 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:40:46,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:40:46,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:40:46,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:40:46,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:40:46,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:40:46,034 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:40:46,034 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:40:46,034 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:40:46,035 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:40:46,036 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:40:46,036 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:40:46,037 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:40:46,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:40:46,037 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:40:46,038 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:40:46,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:40:46,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:40:46,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:40:46,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:40:46,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:40:46,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:40:46,039 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:40:46,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:40:46,040 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:40:46,040 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:40:46,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:40:46,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:40:46,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:40:46,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:40:46,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:40:46,042 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:40:46,044 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:40:46,044 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_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ef0cd39c992d40bf3e567a881941ec0396584542a921ebe29fdfc04cd940c12 [2021-11-02 22:40:46,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:40:46,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:40:46,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:40:46,466 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:40:46,467 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:40:46,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c [2021-11-02 22:40:46,541 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/data/c08d0c20b/7910681217e64ca8a57d4e887b4aa2ee/FLAG094c72d55 [2021-11-02 22:40:47,087 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:40:47,088 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c [2021-11-02 22:40:47,095 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/data/c08d0c20b/7910681217e64ca8a57d4e887b4aa2ee/FLAG094c72d55 [2021-11-02 22:40:47,448 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/data/c08d0c20b/7910681217e64ca8a57d4e887b4aa2ee [2021-11-02 22:40:47,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:40:47,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:40:47,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:40:47,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:40:47,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:40:47,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:40:47" (1/1) ... [2021-11-02 22:40:47,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a04cc9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47, skipping insertion in model container [2021-11-02 22:40:47,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:40:47" (1/1) ... [2021-11-02 22:40:47,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:40:47,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:40:47,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:40:47,682 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:40:47,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:40:47,710 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:40:47,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47 WrapperNode [2021-11-02 22:40:47,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:40:47,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:40:47,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:40:47,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:40:47,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47" (1/1) ... [2021-11-02 22:40:47,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47" (1/1) ... [2021-11-02 22:40:47,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:40:47,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:40:47,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:40:47,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:40:47,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47" (1/1) ... [2021-11-02 22:40:47,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47" (1/1) ... [2021-11-02 22:40:47,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47" (1/1) ... [2021-11-02 22:40:47,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47" (1/1) ... [2021-11-02 22:40:47,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47" (1/1) ... [2021-11-02 22:40:47,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47" (1/1) ... [2021-11-02 22:40:47,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47" (1/1) ... [2021-11-02 22:40:47,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:40:47,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:40:47,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:40:47,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:40:47,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47" (1/1) ... [2021-11-02 22:40:47,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:40:47,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:40:47,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:40:47,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:40:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:40:47,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:40:48,021 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:40:48,022 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-02 22:40:48,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:40:48 BoogieIcfgContainer [2021-11-02 22:40:48,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:40:48,025 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:40:48,025 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:40:48,028 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:40:48,029 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:40:48,030 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:40:47" (1/3) ... [2021-11-02 22:40:48,031 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3765cea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:40:48, skipping insertion in model container [2021-11-02 22:40:48,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:40:48,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:47" (2/3) ... [2021-11-02 22:40:48,032 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3765cea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:40:48, skipping insertion in model container [2021-11-02 22:40:48,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:40:48,032 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:40:48" (3/3) ... [2021-11-02 22:40:48,034 INFO L389 chiAutomizerObserver]: Analyzing ICFG dijkstra1-both-nt.c [2021-11-02 22:40:48,083 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:40:48,084 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:40:48,084 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:40:48,084 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:40:48,084 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:40:48,084 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:40:48,085 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:40:48,085 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:40:48,099 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) [2021-11-02 22:40:48,118 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 22:40:48,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:40:48,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:40:48,127 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:40:48,127 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-02 22:40:48,127 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:40:48,127 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) [2021-11-02 22:40:48,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 22:40:48,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:40:48,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:40:48,130 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:40:48,130 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-02 22:40:48,138 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 [2021-11-02 22:40:48,138 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 [2021-11-02 22:40:48,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:40:48,145 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-11-02 22:40:48,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:40:48,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196525131] [2021-11-02 22:40:48,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:40:48,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:40:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:40:48,249 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:40:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:40:48,274 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:40:48,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:40:48,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1388, now seen corresponding path program 1 times [2021-11-02 22:40:48,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:40:48,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425213703] [2021-11-02 22:40:48,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:40:48,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:40:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:40:48,305 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:40:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:40:48,321 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:40:48,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:40:48,324 INFO L85 PathProgramCache]: Analyzing trace with hash 957583, now seen corresponding path program 1 times [2021-11-02 22:40:48,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:40:48,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911838803] [2021-11-02 22:40:48,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:40:48,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:40:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:40:48,344 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:40:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:40:48,365 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:40:48,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:40:48 BoogieIcfgContainer [2021-11-02 22:40:48,760 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:40:48,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:40:48,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:40:48,761 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:40:48,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:40:48" (3/4) ... [2021-11-02 22:40:48,765 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-02 22:40:48,819 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:40:48,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:40:48,822 INFO L168 Benchmark]: Toolchain (without parser) took 1367.88 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 79.5 MB in the beginning and 85.3 MB in the end (delta: -5.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. [2021-11-02 22:40:48,823 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 109.1 MB. Free memory is still 62.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:40:48,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.32 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 79.5 MB in the beginning and 120.9 MB in the end (delta: -41.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:40:48,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.24 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 119.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:40:48,832 INFO L168 Benchmark]: Boogie Preprocessor took 21.63 ms. Allocated memory is still 144.7 MB. Free memory was 119.4 MB in the beginning and 118.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:40:48,832 INFO L168 Benchmark]: RCFGBuilder took 252.46 ms. Allocated memory is still 144.7 MB. Free memory was 118.2 MB in the beginning and 109.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:40:48,833 INFO L168 Benchmark]: BuchiAutomizer took 734.53 ms. Allocated memory is still 144.7 MB. Free memory was 109.8 MB in the beginning and 86.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:40:48,834 INFO L168 Benchmark]: Witness Printer took 59.16 ms. Allocated memory is still 144.7 MB. Free memory was 86.8 MB in the beginning and 85.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:40:48,837 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 109.1 MB. Free memory is still 62.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.32 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 79.5 MB in the beginning and 120.9 MB in the end (delta: -41.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.24 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 119.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.63 ms. Allocated memory is still 144.7 MB. Free memory was 119.4 MB in the beginning and 118.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 252.46 ms. Allocated memory is still 144.7 MB. Free memory was 118.2 MB in the beginning and 109.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 734.53 ms. Allocated memory is still 144.7 MB. Free memory was 109.8 MB in the beginning and 86.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 59.16 ms. Allocated memory is still 144.7 MB. Free memory was 86.8 MB in the beginning and 85.3 MB in the end (delta: 1.5 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 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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@2e2cc063=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! [2021-11-02 22:40:48,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87ffc68e-4c45-4bf7-a7f4-f7be38eac2fb/bin/uautomizer-tBqnrhUYjU/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)