./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/dijkstra4-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/dijkstra4-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX --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 02d0781d61c8f4f2b2e742481293a601e81fcd682533e6a4acb2ddc279aed0c7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:39:40,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:39:40,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:39:40,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:39:40,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:39:40,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:39:40,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:39:40,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:39:40,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:39:40,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:39:40,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:39:40,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:39:40,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:39:40,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:39:40,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:39:40,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:39:40,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:39:40,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:39:40,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:39:40,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:39:40,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:39:40,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:39:40,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:39:40,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:39:40,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:39:40,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:39:40,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:39:40,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:39:40,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:39:40,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:39:40,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:39:40,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:39:40,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:39:40,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:39:40,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:39:40,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:39:40,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:39:40,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:39:40,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:39:40,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:39:40,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:39:40,950 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 09:39:40,990 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:39:40,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:39:40,991 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:39:40,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:39:40,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:39:40,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:39:40,993 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:39:40,993 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 09:39:40,993 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 09:39:40,993 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 09:39:40,993 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 09:39:40,994 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 09:39:40,994 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 09:39:40,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:39:40,994 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:39:40,994 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:39:40,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:39:40,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:39:40,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:39:40,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 09:39:40,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 09:39:40,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 09:39:40,996 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:39:40,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:39:40,996 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 09:39:40,996 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:39:40,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 09:39:40,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:39:40,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:39:40,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:39:40,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:39:40,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:39:40,999 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 09:39:40,999 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_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02d0781d61c8f4f2b2e742481293a601e81fcd682533e6a4acb2ddc279aed0c7 [2021-11-09 09:39:41,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:39:41,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:39:41,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:39:41,304 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:39:41,305 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:39:41,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/termination-nla/dijkstra4-both-nt.c [2021-11-09 09:39:41,378 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/data/00d08f279/499c864bc8a648d19e305c65a2da7642/FLAGba370f04e [2021-11-09 09:39:41,878 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:39:41,879 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/sv-benchmarks/c/termination-nla/dijkstra4-both-nt.c [2021-11-09 09:39:41,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/data/00d08f279/499c864bc8a648d19e305c65a2da7642/FLAGba370f04e [2021-11-09 09:39:42,245 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/data/00d08f279/499c864bc8a648d19e305c65a2da7642 [2021-11-09 09:39:42,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:39:42,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:39:42,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:39:42,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:39:42,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:39:42,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:39:42" (1/1) ... [2021-11-09 09:39:42,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6044dcd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42, skipping insertion in model container [2021-11-09 09:39:42,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:39:42" (1/1) ... [2021-11-09 09:39:42,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:39:42,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:39:42,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:39:42,459 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:39:42,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:39:42,488 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:39:42,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42 WrapperNode [2021-11-09 09:39:42,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:39:42,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:39:42,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:39:42,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:39:42,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42" (1/1) ... [2021-11-09 09:39:42,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42" (1/1) ... [2021-11-09 09:39:42,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:39:42,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:39:42,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:39:42,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:39:42,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42" (1/1) ... [2021-11-09 09:39:42,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42" (1/1) ... [2021-11-09 09:39:42,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42" (1/1) ... [2021-11-09 09:39:42,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42" (1/1) ... [2021-11-09 09:39:42,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42" (1/1) ... [2021-11-09 09:39:42,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42" (1/1) ... [2021-11-09 09:39:42,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42" (1/1) ... [2021-11-09 09:39:42,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:39:42,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:39:42,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:39:42,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:39:42,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42" (1/1) ... [2021-11-09 09:39:42,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:42,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:42,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:42,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 09:39:42,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:39:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:39:42,875 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:39:42,876 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-09 09:39:42,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:39:42 BoogieIcfgContainer [2021-11-09 09:39:42,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:39:42,879 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 09:39:42,879 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 09:39:42,884 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 09:39:42,885 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:39:42,885 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 09:39:42" (1/3) ... [2021-11-09 09:39:42,887 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b4b613c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:39:42, skipping insertion in model container [2021-11-09 09:39:42,887 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:39:42,887 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:42" (2/3) ... [2021-11-09 09:39:42,888 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b4b613c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:39:42, skipping insertion in model container [2021-11-09 09:39:42,888 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:39:42,889 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:39:42" (3/3) ... [2021-11-09 09:39:42,890 INFO L389 chiAutomizerObserver]: Analyzing ICFG dijkstra4-both-nt.c [2021-11-09 09:39:42,948 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 09:39:42,948 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 09:39:42,949 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 09:39:42,949 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 09:39:42,949 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 09:39:42,949 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 09:39:42,949 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 09:39:42,949 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 09:39:42,965 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) [2021-11-09 09:39:42,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-09 09:39:42,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:42,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:42,993 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 09:39:42,993 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 09:39:42,993 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 09:39:42,993 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) [2021-11-09 09:39:42,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-09 09:39:42,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:42,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:42,996 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 09:39:42,996 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 09:39:43,003 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 [2021-11-09 09:39:43,003 INFO L793 eck$LassoCheckResult]: Loop: 10#L60-1true assume !!(0 == main_~h~0 * main_~h~0 * main_~n~0 - 4 * main_~h~0 * main_~n~0 * main_~p~0 + 4 * (main_~n~0 * main_~n~0) * main_~q~0 - main_~n~0 * main_~q~0 * main_~q~0 - main_~h~0 * main_~h~0 * main_~r~0 + 4 * main_~h~0 * main_~p~0 * main_~r~0 - 8 * main_~n~0 * main_~q~0 * main_~r~0 + main_~q~0 * main_~q~0 * main_~r~0 + 4 * main_~q~0 * main_~r~0 * main_~r~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 [2021-11-09 09:39:43,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:43,010 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-11-09 09:39:43,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:43,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334119387] [2021-11-09 09:39:43,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:43,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:43,106 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:43,129 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:43,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:43,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1388, now seen corresponding path program 1 times [2021-11-09 09:39:43,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:43,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444344784] [2021-11-09 09:39:43,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:43,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:43,140 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 09:39:43,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1413528050] [2021-11-09 09:39:43,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:43,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:39:43,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:43,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:39:43,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 09:39:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:43,183 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:43,193 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:43,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:43,195 INFO L85 PathProgramCache]: Analyzing trace with hash 957583, now seen corresponding path program 1 times [2021-11-09 09:39:43,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:43,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404377797] [2021-11-09 09:39:43,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:43,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:43,202 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 09:39:43,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440580285] [2021-11-09 09:39:43,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:43,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:39:43,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:43,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:39:43,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 09:39:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:43,342 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:43,352 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:43,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:39:43 BoogieIcfgContainer [2021-11-09 09:39:43,807 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:39:43,807 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:39:43,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:39:43,808 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:39:43,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:39:42" (3/4) ... [2021-11-09 09:39:43,811 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-09 09:39:43,863 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 09:39:43,864 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:39:43,866 INFO L168 Benchmark]: Toolchain (without parser) took 1615.28 ms. Allocated memory is still 100.7 MB. Free memory was 64.6 MB in the beginning and 76.1 MB in the end (delta: -11.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:39:43,867 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory is still 80.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:39:43,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.55 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 77.4 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:43,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.19 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 75.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:39:43,874 INFO L168 Benchmark]: Boogie Preprocessor took 19.76 ms. Allocated memory is still 100.7 MB. Free memory was 75.9 MB in the beginning and 74.9 MB in the end (delta: 972.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:43,875 INFO L168 Benchmark]: RCFGBuilder took 331.95 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 66.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:43,886 INFO L168 Benchmark]: BuchiAutomizer took 927.85 ms. Allocated memory is still 100.7 MB. Free memory was 66.3 MB in the beginning and 77.9 MB in the end (delta: -11.6 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:43,887 INFO L168 Benchmark]: Witness Printer took 56.24 ms. Allocated memory is still 100.7 MB. Free memory was 77.8 MB in the beginning and 76.1 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:39:43,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory is still 80.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 238.55 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 77.4 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.19 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 75.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.76 ms. Allocated memory is still 100.7 MB. Free memory was 75.9 MB in the beginning and 74.9 MB in the end (delta: 972.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 331.95 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 66.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 927.85 ms. Allocated memory is still 100.7 MB. Free memory was 66.3 MB in the beginning and 77.9 MB in the end (delta: -11.6 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. * Witness Printer took 56.24 ms. Allocated memory is still 100.7 MB. Free memory was 77.8 MB in the beginning and 76.1 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 50]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {q=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2efa62d2=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 h * h * n - 4 * h * n * p + 4 * (n * n) * q - n * q * q - h * h * r + 4 * h * p * r - 8 * n * q * r + q * q * r + 4 * q * r * r == 0 [L60] COND FALSE !(4 * (q / 4) == q && 2 * (p / 2) == p) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-09 09:39:43,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-09 09:39:44,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-09 09:39:44,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3399f63b-38e7-42dd-98b6-36237f71089b/bin/uautomizer-IVEQpCNsaX/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)