./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/dijkstra1-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_ea702100-72f1-4f4a-9884-20f19abbaed0/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/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_ea702100-72f1-4f4a-9884-20f19abbaed0/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/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_ea702100-72f1-4f4a-9884-20f19abbaed0/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 07a5e6dd5643b3fa45a0834b073ae31072ea61ed37e28ad858159ff6ad70dce7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:33:31,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:33:31,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-13 14:33:31,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:33:31,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:33:31,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:33:31,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:33:31,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:33:31,921 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:33:31,921 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:33:31,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:33:31,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:33:31,922 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:33:31,922 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 14:33:31,923 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 14:33:31,923 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 14:33:31,923 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 14:33:31,923 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 14:33:31,923 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 14:33:31,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:33:31,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 14:33:31,924 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:33:31,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:33:31,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:33:31,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:33:31,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 14:33:31,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 14:33:31,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 14:33:31,925 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:33:31,925 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:33:31,925 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:33:31,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:33:31,925 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 14:33:31,926 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:33:31,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:33:31,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:33:31,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:33:31,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:33:31,927 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 14:33:31,927 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_ea702100-72f1-4f4a-9884-20f19abbaed0/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 -> 07a5e6dd5643b3fa45a0834b073ae31072ea61ed37e28ad858159ff6ad70dce7 [2024-11-13 14:33:32,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:33:32,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:33:32,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:33:32,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:33:32,321 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:33:32,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c Unable to find full path for "g++" [2024-11-13 14:33:34,488 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:33:34,825 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:33:34,826 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c [2024-11-13 14:33:34,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/bin/uautomizer-verify-qhAvR1uOyd/data/c854a873f/b5cd1cd766dc4414863c5e9449534ed0/FLAG701e7eb2a [2024-11-13 14:33:34,864 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/bin/uautomizer-verify-qhAvR1uOyd/data/c854a873f/b5cd1cd766dc4414863c5e9449534ed0 [2024-11-13 14:33:34,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:33:34,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:33:34,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:33:34,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:33:34,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:33:34,881 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:33:34" (1/1) ... [2024-11-13 14:33:34,882 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758d2209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:34, skipping insertion in model container [2024-11-13 14:33:34,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:33:34" (1/1) ... [2024-11-13 14:33:34,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:33:35,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:33:35,087 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:33:35,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:33:35,117 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:33:35,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35 WrapperNode [2024-11-13 14:33:35,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:33:35,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:33:35,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:33:35,120 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:33:35,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (1/1) ... [2024-11-13 14:33:35,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (1/1) ... [2024-11-13 14:33:35,150 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-11-13 14:33:35,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:33:35,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:33:35,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:33:35,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:33:35,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (1/1) ... [2024-11-13 14:33:35,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (1/1) ... [2024-11-13 14:33:35,162 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (1/1) ... [2024-11-13 14:33:35,168 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 14:33:35,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (1/1) ... [2024-11-13 14:33:35,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (1/1) ... [2024-11-13 14:33:35,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (1/1) ... [2024-11-13 14:33:35,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (1/1) ... [2024-11-13 14:33:35,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (1/1) ... [2024-11-13 14:33:35,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (1/1) ... [2024-11-13 14:33:35,178 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:33:35,179 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:33:35,179 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:33:35,179 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:33:35,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (1/1) ... [2024-11-13 14:33:35,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:33:35,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:33:35,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:33:35,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 14:33:35,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:33:35,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:33:35,335 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:33:35,338 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:33:35,463 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-13 14:33:35,463 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:33:35,472 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:33:35,472 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:33:35,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:33:35 BoogieIcfgContainer [2024-11-13 14:33:35,473 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:33:35,474 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 14:33:35,474 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 14:33:35,479 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 14:33:35,480 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:33:35,480 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 02:33:34" (1/3) ... [2024-11-13 14:33:35,481 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b62429b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:33:35, skipping insertion in model container [2024-11-13 14:33:35,481 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:33:35,481 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:35" (2/3) ... [2024-11-13 14:33:35,482 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b62429b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:33:35, skipping insertion in model container [2024-11-13 14:33:35,482 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:33:35,482 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:33:35" (3/3) ... [2024-11-13 14:33:35,483 INFO L333 chiAutomizerObserver]: Analyzing ICFG dijkstra1-both-nt.c [2024-11-13 14:33:35,554 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 14:33:35,554 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 14:33:35,555 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 14:33:35,556 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 14:33:35,556 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 14:33:35,556 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 14:33:35,556 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 14:33:35,556 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 14:33:35,564 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 14:33:35,585 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 14:33:35,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:33:35,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:33:35,592 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 14:33:35,593 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 14:33:35,593 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 14:33:35,593 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 14:33:35,594 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 14:33:35,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:33:35,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:33:35,595 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 14:33:35,595 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 14:33:35,609 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 14:33:35,609 INFO L747 eck$LassoCheckResult]: Loop: 9#L51-1true assume !!(main_~r~0#1 < 2 * main_~p~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 14:33:35,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:35,618 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-13 14:33:35,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:35,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052489174] [2024-11-13 14:33:35,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:35,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:33:35,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:33:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:33:35,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:33:35,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:35,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1388, now seen corresponding path program 1 times [2024-11-13 14:33:35,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:35,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458794366] [2024-11-13 14:33:35,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:35,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:33:35,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:33:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:33:35,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:33:35,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:35,822 INFO L85 PathProgramCache]: Analyzing trace with hash 28693965, now seen corresponding path program 1 times [2024-11-13 14:33:35,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:35,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339202252] [2024-11-13 14:33:35,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:35,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:33:35,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:33:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:33:35,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:33:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:33:36,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:33:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:33:36,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 02:33:36 BoogieIcfgContainer [2024-11-13 14:33:36,215 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 14:33:36,216 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:33:36,216 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:33:36,216 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:33:36,217 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:33:35" (3/4) ... [2024-11-13 14:33:36,219 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 14:33:36,256 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:33:36,256 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:33:36,258 INFO L158 Benchmark]: Toolchain (without parser) took 1387.16ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 74.7MB in the end (delta: 43.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 14:33:36,259 INFO L158 Benchmark]: CDTParser took 1.21ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:33:36,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.63ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 108.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:33:36,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.03ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 107.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:33:36,260 INFO L158 Benchmark]: Boogie Preprocessor took 27.65ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:33:36,261 INFO L158 Benchmark]: RCFGBuilder took 293.80ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 96.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:33:36,261 INFO L158 Benchmark]: BuchiAutomizer took 741.68ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 76.6MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:33:36,261 INFO L158 Benchmark]: Witness Printer took 40.36ms. Allocated memory is still 142.6MB. Free memory was 76.3MB in the beginning and 74.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:33:36,264 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.63ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 108.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.03ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 107.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.65ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 293.80ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 96.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 741.68ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 76.6MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 40.36ms. Allocated memory is still 142.6MB. Free memory was 76.3MB in the beginning and 74.7MB 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 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 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 [p=0, q=1, r=0] Loop: [L41] COND TRUE r < 2 * p + 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 [p=0, q=1, r=0] Loop: [L41] COND TRUE r < 2 * p + 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 14:33:36,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea702100-72f1-4f4a-9884-20f19abbaed0/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)