./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/dijkstra2-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/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_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/dijkstra2-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/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 32bit --witnessprinter.graph.data.programhash 3e7687da568dfe273ac225f01dbc8df1f76ef15d8b8e5d222cf6fab4c622d621 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:44:18,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:44:19,061 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-13 14:44:19,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:44:19,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:44:19,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:44:19,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:44:19,107 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:44:19,108 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:44:19,108 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:44:19,109 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:44:19,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:44:19,109 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:44:19,109 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 14:44:19,109 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 14:44:19,109 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 14:44:19,110 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 14:44:19,110 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 14:44:19,110 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 14:44:19,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:44:19,110 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 14:44:19,110 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:44:19,110 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:44:19,111 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:44:19,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:44:19,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 14:44:19,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 14:44:19,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 14:44:19,111 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:44:19,111 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:44:19,112 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:44:19,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:44:19,112 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 14:44:19,112 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:44:19,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:44:19,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:44:19,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:44:19,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:44:19,113 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 14:44:19,113 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_7ba94004-eaa6-4f70-898e-0f676a9bf469/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e7687da568dfe273ac225f01dbc8df1f76ef15d8b8e5d222cf6fab4c622d621 [2024-11-13 14:44:19,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:44:19,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:44:19,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:44:19,513 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:44:19,517 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:44:19,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-nla/dijkstra2-both-nt.c Unable to find full path for "g++" [2024-11-13 14:44:21,966 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:44:22,424 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:44:22,425 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/sv-benchmarks/c/termination-nla/dijkstra2-both-nt.c [2024-11-13 14:44:22,439 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/data/4b70fe8a9/4c6642eb67154fccb4dead75617685fb/FLAGa8e33fd5e [2024-11-13 14:44:22,463 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/data/4b70fe8a9/4c6642eb67154fccb4dead75617685fb [2024-11-13 14:44:22,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:44:22,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:44:22,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:44:22,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:44:22,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:44:22,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5500e941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22, skipping insertion in model container [2024-11-13 14:44:22,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,504 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:44:22,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:44:22,730 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:44:22,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:44:22,768 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:44:22,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22 WrapperNode [2024-11-13 14:44:22,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:44:22,772 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:44:22,772 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:44:22,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:44:22,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,808 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-11-13 14:44:22,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:44:22,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:44:22,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:44:22,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:44:22,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,824 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,834 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 14:44:22,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,838 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,852 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:44:22,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:44:22,861 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:44:22,861 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:44:22,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (1/1) ... [2024-11-13 14:44:22,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:44:22,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:22,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:44:22,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 14:44:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:44:22,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:44:23,044 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:44:23,046 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:44:23,230 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-13 14:44:23,232 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:44:23,251 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:44:23,252 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:44:23,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:44:23 BoogieIcfgContainer [2024-11-13 14:44:23,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:44:23,254 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 14:44:23,254 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 14:44:23,260 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 14:44:23,261 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:44:23,262 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 02:44:22" (1/3) ... [2024-11-13 14:44:23,263 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d98a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:44:23, skipping insertion in model container [2024-11-13 14:44:23,263 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:44:23,264 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:22" (2/3) ... [2024-11-13 14:44:23,265 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d98a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:44:23, skipping insertion in model container [2024-11-13 14:44:23,265 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:44:23,265 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:44:23" (3/3) ... [2024-11-13 14:44:23,267 INFO L333 chiAutomizerObserver]: Analyzing ICFG dijkstra2-both-nt.c [2024-11-13 14:44:23,350 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 14:44:23,351 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 14:44:23,351 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 14:44:23,351 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 14:44:23,351 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 14:44:23,352 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 14:44:23,352 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 14:44:23,352 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 14:44:23,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 14:44:23,378 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 14:44:23,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:44:23,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:44:23,386 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 14:44:23,387 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 14:44:23,387 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 14:44:23,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 14:44:23,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 14:44:23,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:44:23,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:44:23,389 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 14:44:23,389 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 14:44:23,400 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 8#L40true assume main_~q~0#1 > main_~n~0#1; 9#L51-1true [2024-11-13 14:44:23,400 INFO L747 eck$LassoCheckResult]: Loop: 9#L51-1true assume !!(main_~p~0#1 * main_~p~0#1 + main_~r~0#1 * main_~q~0#1 == main_~n~0#1 * main_~q~0#1); 4#L51true assume !(4 * (if main_~q~0#1 < 0 && 0 != main_~q~0#1 % 4 then 1 + main_~q~0#1 / 4 else main_~q~0#1 / 4) == main_~q~0#1 && 2 * (if main_~p~0#1 < 0 && 0 != main_~p~0#1 % 2 then 1 + main_~p~0#1 / 2 else main_~p~0#1 / 2) == main_~p~0#1); 9#L51-1true [2024-11-13 14:44:23,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:23,409 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-13 14:44:23,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:23,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250343709] [2024-11-13 14:44:23,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:23,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:44:23,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:44:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:44:23,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:44:23,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:23,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1388, now seen corresponding path program 1 times [2024-11-13 14:44:23,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:23,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952248376] [2024-11-13 14:44:23,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:23,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:44:23,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689302991] [2024-11-13 14:44:23,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:23,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:44:23,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:23,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:44:23,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:44:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:44:23,688 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:44:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:44:23,709 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:44:23,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:23,711 INFO L85 PathProgramCache]: Analyzing trace with hash 28693965, now seen corresponding path program 1 times [2024-11-13 14:44:23,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:23,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735349557] [2024-11-13 14:44:23,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:23,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:44:23,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1505029262] [2024-11-13 14:44:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:23,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:44:23,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:23,761 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:44:23,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:44:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:44:23,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:44:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:44:23,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:44:38,004 WARN L286 SmtUtils]: Spent 14.16s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-13 14:44:50,178 WARN L286 SmtUtils]: Spent 12.13s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 14:45:05,588 WARN L286 SmtUtils]: Spent 15.40s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 299] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-13 14:45:17,743 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 14:45:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:45:17,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:45:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:45:17,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 02:45:17 BoogieIcfgContainer [2024-11-13 14:45:17,791 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 14:45:17,791 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:45:17,791 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:45:17,792 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:45:17,792 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:44:23" (3/4) ... [2024-11-13 14:45:17,795 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 14:45:17,828 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:45:17,828 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:45:17,830 INFO L158 Benchmark]: Toolchain (without parser) took 55360.28ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 79.0MB in the end (delta: 52.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 14:45:17,830 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:45:17,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.50ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 121.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:45:17,831 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.15ms. Allocated memory is still 167.8MB. Free memory was 121.6MB in the beginning and 120.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:45:17,831 INFO L158 Benchmark]: Boogie Preprocessor took 49.51ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 119.6MB in the end (delta: 985.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:45:17,832 INFO L158 Benchmark]: RCFGBuilder took 392.23ms. Allocated memory is still 167.8MB. Free memory was 119.6MB in the beginning and 109.8MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:45:17,832 INFO L158 Benchmark]: BuchiAutomizer took 54537.15ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 80.7MB in the end (delta: 29.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 14:45:17,833 INFO L158 Benchmark]: Witness Printer took 37.21ms. Allocated memory is still 167.8MB. Free memory was 80.7MB in the beginning and 79.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:45:17,835 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.50ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 121.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.15ms. Allocated memory is still 167.8MB. Free memory was 121.6MB in the beginning and 120.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.51ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 119.6MB in the end (delta: 985.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 392.23ms. Allocated memory is still 167.8MB. Free memory was 119.6MB in the beginning and 109.8MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 54537.15ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 80.7MB in the end (delta: 29.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 37.21ms. Allocated memory is still 167.8MB. Free memory was 80.7MB in the beginning and 79.0MB in the end (delta: 1.6MB). 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 54.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 54.3s. 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: 41]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L22] int n, p, q, r, h; [L24] n = __VERIFIER_nondet_int() [L26] p = 0 [L27] q = 1 [L28] r = n [L29] h = 0 VAL [n=0, p=0, q=1, r=0] [L40] COND TRUE q > n VAL [n=0, p=0, q=1, r=0] Loop: [L41] COND TRUE p*p + r*q == n*q [L51] COND FALSE !(4 * (q / 4) == q && 2 * (p / 2) == p) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 41]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L22] int n, p, q, r, h; [L24] n = __VERIFIER_nondet_int() [L26] p = 0 [L27] q = 1 [L28] r = n [L29] h = 0 VAL [n=0, p=0, q=1, r=0] [L40] COND TRUE q > n VAL [n=0, p=0, q=1, r=0] Loop: [L41] COND TRUE p*p + r*q == n*q [L51] COND FALSE !(4 * (q / 4) == q && 2 * (p / 2) == p) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 14:45:17,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:45:18,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:45:18,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba94004-eaa6-4f70-898e-0f676a9bf469/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)