./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Rotation180-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:30:25,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:30:25,267 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 14:30:25,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:30:25,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:30:25,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:30:25,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:30:25,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:30:25,304 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:30:25,304 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:30:25,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:30:25,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:30:25,304 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:30:25,305 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 14:30:25,305 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 14:30:25,305 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 14:30:25,305 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 14:30:25,305 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 14:30:25,305 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 14:30:25,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:30:25,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 14:30:25,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:30:25,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:30:25,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 14:30:25,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 14:30:25,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 14:30:25,306 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:30:25,307 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:30:25,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:30:25,307 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 14:30:25,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:30:25,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:30:25,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:30:25,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:30:25,308 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:30:25,308 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 14:30:25,308 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 [2024-11-13 14:30:25,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:30:25,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:30:25,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:30:25,691 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:30:25,692 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:30:25,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-crafted/Rotation180-1.c Unable to find full path for "g++" [2024-11-13 14:30:28,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:30:28,465 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:30:28,466 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/sv-benchmarks/c/termination-crafted/Rotation180-1.c [2024-11-13 14:30:28,473 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/data/0999dbd52/13d50470a57b4801a59587735dd4afac/FLAG856898919 [2024-11-13 14:30:28,491 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/data/0999dbd52/13d50470a57b4801a59587735dd4afac [2024-11-13 14:30:28,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:30:28,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:30:28,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:30:28,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:30:28,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:30:28,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@686b7088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28, skipping insertion in model container [2024-11-13 14:30:28,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:30:28,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:30:28,717 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:30:28,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:30:28,745 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:30:28,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28 WrapperNode [2024-11-13 14:30:28,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:30:28,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:30:28,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:30:28,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:30:28,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,778 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-11-13 14:30:28,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:30:28,780 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:30:28,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:30:28,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:30:28,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,791 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,797 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 14:30:28,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,800 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,805 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,806 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:30:28,808 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:30:28,808 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:30:28,809 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:30:28,810 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (1/1) ... [2024-11-13 14:30:28,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:30:28,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:30:28,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:30:28,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 14:30:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:30:28,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:30:28,976 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:30:28,978 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:30:29,070 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-13 14:30:29,070 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:30:29,082 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:30:29,082 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:30:29,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:29 BoogieIcfgContainer [2024-11-13 14:30:29,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:30:29,084 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 14:30:29,084 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 14:30:29,090 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 14:30:29,095 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:30:29,095 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 02:30:28" (1/3) ... [2024-11-13 14:30:29,097 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bccf462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:30:29, skipping insertion in model container [2024-11-13 14:30:29,097 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:30:29,097 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:28" (2/3) ... [2024-11-13 14:30:29,097 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bccf462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:30:29, skipping insertion in model container [2024-11-13 14:30:29,097 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:30:29,097 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:29" (3/3) ... [2024-11-13 14:30:29,099 INFO L333 chiAutomizerObserver]: Analyzing ICFG Rotation180-1.c [2024-11-13 14:30:29,185 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 14:30:29,186 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 14:30:29,186 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 14:30:29,186 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 14:30:29,186 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 14:30:29,187 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 14:30:29,187 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 14:30:29,187 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 14:30:29,195 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) [2024-11-13 14:30:29,218 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 14:30:29,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:30:29,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:30:29,226 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-13 14:30:29,226 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 14:30:29,227 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 14:30:29,227 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) [2024-11-13 14:30:29,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 14:30:29,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:30:29,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:30:29,230 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-13 14:30:29,230 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 14:30:29,241 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true 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;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#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 [2024-11-13 14:30:29,241 INFO L747 eck$LassoCheckResult]: Loop: 5#L23-2true assume !false;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 [2024-11-13 14:30:29,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:29,249 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2024-11-13 14:30:29,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:29,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233466796] [2024-11-13 14:30:29,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:29,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:30:29,376 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:30:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:30:29,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:30:29,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:29,407 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2024-11-13 14:30:29,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:29,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311675388] [2024-11-13 14:30:29,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:29,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:30:29,429 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:30:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:30:29,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:30:29,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:29,441 INFO L85 PathProgramCache]: Analyzing trace with hash 28695852, now seen corresponding path program 1 times [2024-11-13 14:30:29,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:29,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990571099] [2024-11-13 14:30:29,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:29,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:30:29,467 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:30:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:30:29,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:30:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:30:29,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:30:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:30:29,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 02:30:29 BoogieIcfgContainer [2024-11-13 14:30:29,666 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 14:30:29,667 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:30:29,667 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:30:29,667 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:30:29,668 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:29" (3/4) ... [2024-11-13 14:30:29,671 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 14:30:29,714 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:30:29,715 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:30:29,718 INFO L158 Benchmark]: Toolchain (without parser) took 1220.41ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 55.2MB in the end (delta: 37.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 14:30:29,718 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 83.9MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:30:29,719 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.59ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 82.5MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:30:29,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.02ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:30:29,720 INFO L158 Benchmark]: Boogie Preprocessor took 27.90ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 80.5MB in the end (delta: 794.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:30:29,720 INFO L158 Benchmark]: RCFGBuilder took 274.43ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 72.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:30:29,721 INFO L158 Benchmark]: BuchiAutomizer took 582.07ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 57.1MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:30:29,724 INFO L158 Benchmark]: Witness Printer took 48.33ms. Allocated memory is still 117.4MB. Free memory was 56.7MB in the beginning and 55.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:30:29,730 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 83.9MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.59ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 82.5MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.02ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.90ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 80.5MB in the end (delta: 794.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 274.43ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 72.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 582.07ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 57.1MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 48.33ms. Allocated memory is still 117.4MB. Free memory was 56.7MB in the beginning and 55.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s 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! [2024-11-13 14:30:29,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c62fba5-2eaf-47b3-9d16-ee8240ba5b04/bin/uautomizer-verify-qhAvR1uOyd/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)