./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Rotation180-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Rotation180-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R --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 fde09a60595b1ccfdc4082db9307f665f7d9aa8adcf6aa0f827e624d65c22a35 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:28:51,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:28:51,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:28:51,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:28:51,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:28:51,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:28:51,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:28:51,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:28:51,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:28:51,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:28:51,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:28:51,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:28:51,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:28:51,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:28:51,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:28:51,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:28:51,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:28:51,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:28:51,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:28:51,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:28:51,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:28:51,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:28:51,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:28:51,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:28:51,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:28:51,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:28:51,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:28:51,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:28:51,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:28:51,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:28:51,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:28:51,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:28:51,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:28:51,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:28:51,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:28:51,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:28:51,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:28:51,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:28:51,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:28:51,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:28:51,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:28:51,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-25 15:28:51,760 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:28:51,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:28:51,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:28:51,762 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:28:51,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:28:51,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:28:51,764 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:28:51,764 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 15:28:51,764 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 15:28:51,764 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 15:28:51,765 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 15:28:51,765 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 15:28:51,766 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 15:28:51,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:28:51,766 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:28:51,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:28:51,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:28:51,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 15:28:51,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 15:28:51,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 15:28:51,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:28:51,767 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 15:28:51,768 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:28:51,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 15:28:51,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:28:51,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:28:51,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:28:51,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:28:51,771 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 15:28:51,771 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_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fde09a60595b1ccfdc4082db9307f665f7d9aa8adcf6aa0f827e624d65c22a35 [2022-11-25 15:28:52,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:28:52,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:28:52,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:28:52,090 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:28:52,091 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:28:52,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted/Rotation180-1.c [2022-11-25 15:28:55,117 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:28:55,294 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:28:55,295 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/sv-benchmarks/c/termination-crafted/Rotation180-1.c [2022-11-25 15:28:55,301 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/data/0d6660673/23021a07b2fa4b5f9ae91376202004c8/FLAG1cc4216b8 [2022-11-25 15:28:55,317 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/data/0d6660673/23021a07b2fa4b5f9ae91376202004c8 [2022-11-25 15:28:55,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:28:55,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:28:55,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:28:55,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:28:55,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:28:55,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106b572a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55, skipping insertion in model container [2022-11-25 15:28:55,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:28:55,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:28:55,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:28:55,493 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:28:55,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:28:55,511 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:28:55,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55 WrapperNode [2022-11-25 15:28:55,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:28:55,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:28:55,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:28:55,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:28:55,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,541 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-11-25 15:28:55,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:28:55,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:28:55,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:28:55,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:28:55,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,559 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:28:55,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:28:55,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:28:55,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:28:55,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55" (1/1) ... [2022-11-25 15:28:55,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:28:55,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:28:55,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:28:55,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 15:28:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:28:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:28:55,731 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:28:55,736 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:28:55,833 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:28:55,840 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:28:55,840 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 15:28:55,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:28:55 BoogieIcfgContainer [2022-11-25 15:28:55,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:28:55,845 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 15:28:55,845 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 15:28:55,849 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 15:28:55,850 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 15:28:55,850 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 03:28:55" (1/3) ... [2022-11-25 15:28:55,852 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dcb6800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 03:28:55, skipping insertion in model container [2022-11-25 15:28:55,852 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 15:28:55,852 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:55" (2/3) ... [2022-11-25 15:28:55,855 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dcb6800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 03:28:55, skipping insertion in model container [2022-11-25 15:28:55,855 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 15:28:55,855 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:28:55" (3/3) ... [2022-11-25 15:28:55,857 INFO L332 chiAutomizerObserver]: Analyzing ICFG Rotation180-1.c [2022-11-25 15:28:55,939 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 15:28:55,940 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 15:28:55,940 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 15:28:55,940 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 15:28:55,940 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 15:28:55,941 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 15:28:55,941 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 15:28:55,941 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 15:28:55,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-11-25 15:28:55,967 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-25 15:28:55,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:28:55,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:28:55,973 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-25 15:28:55,974 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-25 15:28:55,974 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 15:28:55,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-11-25 15:28:55,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-25 15:28:55,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:28:55,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:28:55,977 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-25 15:28:55,978 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-25 15:28:55,989 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~oldx~0#1, main_~x~0#1, main_~y~0#1;havoc main_~oldx~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L21true assume !!(main_~x~0#1 >= -2147483647); 3#L22true assume !!(main_~y~0#1 >= -2147483647); 5#L23-2true [2022-11-25 15:28:55,989 INFO L750 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!(0 != ~unnamed0~0~true);main_~oldx~0#1 := main_~x~0#1;main_~x~0#1 := -main_~y~0#1;main_~y~0#1 := main_~oldx~0#1; 5#L23-2true [2022-11-25 15:28:55,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:55,998 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-11-25 15:28:56,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:56,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104994835] [2022-11-25 15:28:56,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:56,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:28:56,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:28:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:28:56,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:28:56,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:56,141 INFO L85 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2022-11-25 15:28:56,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:56,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101172250] [2022-11-25 15:28:56,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:56,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:28:56,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:28:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:28:56,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:28:56,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:56,178 INFO L85 PathProgramCache]: Analyzing trace with hash 28695853, now seen corresponding path program 1 times [2022-11-25 15:28:56,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:56,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356652501] [2022-11-25 15:28:56,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:56,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:28:56,195 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:28:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:28:56,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:28:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:28:56,415 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:28:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:28:56,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 03:28:56 BoogieIcfgContainer [2022-11-25 15:28:56,445 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 15:28:56,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:28:56,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:28:56,446 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:28:56,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:28:55" (3/4) ... [2022-11-25 15:28:56,449 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-25 15:28:56,486 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:28:56,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:28:56,488 INFO L158 Benchmark]: Toolchain (without parser) took 1165.50ms. Allocated memory is still 180.4MB. Free memory was 135.1MB in the beginning and 94.3MB in the end (delta: 40.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-25 15:28:56,488 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 138.4MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:28:56,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.76ms. Allocated memory is still 180.4MB. Free memory was 135.1MB in the beginning and 125.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 15:28:56,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.50ms. Allocated memory is still 180.4MB. Free memory was 125.8MB in the beginning and 124.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:28:56,490 INFO L158 Benchmark]: Boogie Preprocessor took 19.28ms. Allocated memory is still 180.4MB. Free memory was 124.6MB in the beginning and 123.7MB in the end (delta: 937.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:28:56,491 INFO L158 Benchmark]: RCFGBuilder took 280.51ms. Allocated memory is still 180.4MB. Free memory was 123.7MB in the beginning and 115.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 15:28:56,491 INFO L158 Benchmark]: BuchiAutomizer took 600.40ms. Allocated memory is still 180.4MB. Free memory was 114.7MB in the beginning and 96.4MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 15:28:56,492 INFO L158 Benchmark]: Witness Printer took 40.55ms. Allocated memory is still 180.4MB. Free memory was 96.4MB in the beginning and 94.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:28:56,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 138.4MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.76ms. Allocated memory is still 180.4MB. Free memory was 135.1MB in the beginning and 125.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.50ms. Allocated memory is still 180.4MB. Free memory was 125.8MB in the beginning and 124.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.28ms. Allocated memory is still 180.4MB. Free memory was 124.6MB in the beginning and 123.7MB in the end (delta: 937.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 280.51ms. Allocated memory is still 180.4MB. Free memory was 123.7MB in the beginning and 115.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 600.40ms. Allocated memory is still 180.4MB. Free memory was 114.7MB in the beginning and 96.4MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 40.55ms. Allocated memory is still 180.4MB. Free memory was 96.4MB in the beginning and 94.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 23]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L15] int oldx; [L16] int x; [L17] int y; [L18] x = __VERIFIER_nondet_int() [L19] y = __VERIFIER_nondet_int() [L21] COND FALSE !(!(x>=-2147483647)) VAL [x=0] [L22] COND FALSE !(!(y>=-2147483647)) VAL [x=0, y=0] Loop: [L23] COND TRUE \read(true) [L24] oldx = x [L25] x = -y [L26] y = oldx End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L15] int oldx; [L16] int x; [L17] int y; [L18] x = __VERIFIER_nondet_int() [L19] y = __VERIFIER_nondet_int() [L21] COND FALSE !(!(x>=-2147483647)) VAL [x=0] [L22] COND FALSE !(!(y>=-2147483647)) VAL [x=0, y=0] Loop: [L23] COND TRUE \read(true) [L24] oldx = x [L25] x = -y [L26] y = oldx End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-25 15:28:56,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7a3b59-df3a-4b15-a93e-3616db2ea565/bin/uautomizer-ZsLfNo2U6R/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)