./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c8c2842840d9df2fd19d5532fbc3700c74bea362cad75e31db6c666eb38ff4df ............................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:55:01,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:55:01,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:55:01,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:55:01,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:55:01,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:55:01,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:55:01,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:55:01,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:55:01,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:55:01,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:55:01,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:55:01,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:55:01,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:55:01,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:55:01,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:55:01,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:55:01,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:55:01,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:55:01,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:55:01,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:55:01,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:55:01,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:55:01,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:55:01,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:55:01,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:55:01,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:55:01,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:55:01,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:55:01,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:55:01,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:55:01,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:55:01,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:55:01,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:55:01,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:55:01,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:55:01,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:55:01,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:55:01,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:55:01,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:55:01,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:55:01,951 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:55:02,013 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:55:02,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:55:02,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:55:02,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:55:02,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:55:02,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:55:02,017 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:55:02,018 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:55:02,018 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:55:02,018 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:55:02,020 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:55:02,020 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:55:02,020 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:55:02,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:55:02,021 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:55:02,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:55:02,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:55:02,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:55:02,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:55:02,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:55:02,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:55:02,023 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:55:02,023 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:55:02,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:55:02,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:55:02,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:55:02,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:55:02,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:55:02,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:55:02,029 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:55:02,030 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_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8c2842840d9df2fd19d5532fbc3700c74bea362cad75e31db6c666eb38ff4df [2021-10-28 09:55:02,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:55:02,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:55:02,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:55:02,412 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:55:02,415 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:55:02,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2021-10-28 09:55:02,502 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/data/ce320d253/adf23ae6bb134ba48162a773c0bee5ee/FLAGcb4d636d1 [2021-10-28 09:55:03,193 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:55:03,194 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2021-10-28 09:55:03,209 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/data/ce320d253/adf23ae6bb134ba48162a773c0bee5ee/FLAGcb4d636d1 [2021-10-28 09:55:03,548 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/data/ce320d253/adf23ae6bb134ba48162a773c0bee5ee [2021-10-28 09:55:03,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:55:03,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:55:03,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:55:03,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:55:03,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:55:03,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:55:03" (1/1) ... [2021-10-28 09:55:03,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d58af2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03, skipping insertion in model container [2021-10-28 09:55:03,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:55:03" (1/1) ... [2021-10-28 09:55:03,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:55:03,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:55:03,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:55:03,803 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:55:03,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:55:03,879 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:55:03,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03 WrapperNode [2021-10-28 09:55:03,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:55:03,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:55:03,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:55:03,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:55:03,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03" (1/1) ... [2021-10-28 09:55:03,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03" (1/1) ... [2021-10-28 09:55:03,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:55:03,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:55:03,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:55:03,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:55:03,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03" (1/1) ... [2021-10-28 09:55:03,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03" (1/1) ... [2021-10-28 09:55:03,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03" (1/1) ... [2021-10-28 09:55:03,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03" (1/1) ... [2021-10-28 09:55:03,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03" (1/1) ... [2021-10-28 09:55:03,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03" (1/1) ... [2021-10-28 09:55:03,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03" (1/1) ... [2021-10-28 09:55:03,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:55:03,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:55:03,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:55:03,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:55:03,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03" (1/1) ... [2021-10-28 09:55:03,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:55:04,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:55:04,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:55:04,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:55:04,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:55:04,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:55:04,303 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:55:04,304 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 09:55:04,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:55:04 BoogieIcfgContainer [2021-10-28 09:55:04,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:55:04,310 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:55:04,310 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:55:04,315 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:55:04,316 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:55:04,316 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:55:03" (1/3) ... [2021-10-28 09:55:04,319 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e57f539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:55:04, skipping insertion in model container [2021-10-28 09:55:04,320 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:55:04,320 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:55:03" (2/3) ... [2021-10-28 09:55:04,321 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e57f539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:55:04, skipping insertion in model container [2021-10-28 09:55:04,321 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:55:04,321 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:55:04" (3/3) ... [2021-10-28 09:55:04,324 INFO L389 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1-modified.c [2021-10-28 09:55:04,403 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:55:04,403 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:55:04,404 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:55:04,404 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:55:04,404 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:55:04,405 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:55:04,405 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:55:04,405 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:55:04,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-10-28 09:55:04,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:55:04,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:55:04,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:55:04,462 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:55:04,463 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:55:04,463 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:55:04,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-10-28 09:55:04,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:55:04,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:55:04,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:55:04,467 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:55:04,468 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:55:04,477 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~y1~0, main_~y2~0;havoc main_~y1~0;havoc main_~y2~0;main_~y1~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y2~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L20true assume main_~y1~0 >= 0 && main_~y2~0 >= 0; 8#L22-2true [2021-10-28 09:55:04,479 INFO L793 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~y1~0 != main_~y2~0); 4#L22true assume main_~y1~0 > main_~y2~0;main_~y1~0 := main_~y1~0 - main_~y2~0; 8#L22-2true [2021-10-28 09:55:04,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:55:04,489 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-10-28 09:55:04,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:55:04,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577549082] [2021-10-28 09:55:04,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:55:04,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:55:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:55:04,626 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:55:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:55:04,666 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:55:04,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:55:04,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2021-10-28 09:55:04,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:55:04,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059466784] [2021-10-28 09:55:04,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:55:04,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:55:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:55:04,704 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:55:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:55:04,729 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:55:04,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:55:04,734 INFO L85 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2021-10-28 09:55:04,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:55:04,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4026169] [2021-10-28 09:55:04,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:55:04,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:55:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:55:04,748 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:55:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:55:04,770 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:55:05,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:55:05 BoogieIcfgContainer [2021-10-28 09:55:05,029 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:55:05,030 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:55:05,030 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:55:05,030 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:55:05,031 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:55:04" (3/4) ... [2021-10-28 09:55:05,035 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:55:05,091 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:55:05,092 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:55:05,095 INFO L168 Benchmark]: Toolchain (without parser) took 1538.86 ms. Allocated memory is still 113.2 MB. Free memory was 74.6 MB in the beginning and 61.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:55:05,096 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 113.2 MB. Free memory is still 90.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:55:05,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.21 ms. Allocated memory is still 113.2 MB. Free memory was 74.4 MB in the beginning and 89.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:55:05,098 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.54 ms. Allocated memory is still 113.2 MB. Free memory was 89.8 MB in the beginning and 88.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:55:05,100 INFO L168 Benchmark]: Boogie Preprocessor took 26.91 ms. Allocated memory is still 113.2 MB. Free memory was 88.5 MB in the beginning and 87.7 MB in the end (delta: 803.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:55:05,104 INFO L168 Benchmark]: RCFGBuilder took 335.83 ms. Allocated memory is still 113.2 MB. Free memory was 87.7 MB in the beginning and 79.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:55:05,105 INFO L168 Benchmark]: BuchiAutomizer took 719.32 ms. Allocated memory is still 113.2 MB. Free memory was 79.7 MB in the beginning and 63.0 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:55:05,107 INFO L168 Benchmark]: Witness Printer took 63.25 ms. Allocated memory is still 113.2 MB. Free memory was 63.0 MB in the beginning and 61.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:55:05,113 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 113.2 MB. Free memory is still 90.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 325.21 ms. Allocated memory is still 113.2 MB. Free memory was 74.4 MB in the beginning and 89.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.54 ms. Allocated memory is still 113.2 MB. Free memory was 89.8 MB in the beginning and 88.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.91 ms. Allocated memory is still 113.2 MB. Free memory was 88.5 MB in the beginning and 87.7 MB in the end (delta: 803.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 335.83 ms. Allocated memory is still 113.2 MB. Free memory was 87.7 MB in the beginning and 79.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 719.32 ms. Allocated memory is still 113.2 MB. Free memory was 79.7 MB in the beginning and 63.0 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 63.25 ms. Allocated memory is still 113.2 MB. Free memory was 63.0 MB in the beginning and 61.6 MB in the end (delta: 1.3 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 0.5s. 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: 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: 21]: 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 {y2=0, y1=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2443943e=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25751b8f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 21]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L17] int y1, y2; [L18] y1 = __VERIFIER_nondet_int() [L19] y2 = __VERIFIER_nondet_int() [L20] COND TRUE y1 >= 0 && y2 >= 0 Loop: [L21] COND TRUE y1 != y2 [L22] COND TRUE y1 > y2 [L23] y1 = y1 - y2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:55:05,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b365218-84b6-423e-82ac-71df9b269ec6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...