./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 c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-nla/dijkstra2-both-nt.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.5-?-c7c6ca5-m [2024-11-09 15:22:07,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:22:07,192 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-09 15:22:07,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:22:07,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:22:07,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:22:07,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:22:07,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:22:07,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:22:07,239 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:22:07,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:22:07,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:22:07,240 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:22:07,241 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 15:22:07,241 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 15:22:07,241 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 15:22:07,241 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 15:22:07,241 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 15:22:07,241 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 15:22:07,242 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:22:07,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 15:22:07,242 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:22:07,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:22:07,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:22:07,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:22:07,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 15:22:07,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 15:22:07,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 15:22:07,244 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:22:07,244 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:22:07,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:22:07,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:22:07,244 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 15:22:07,245 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:22:07,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:22:07,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:22:07,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:22:07,245 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:22:07,245 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 15:22:07,246 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e7687da568dfe273ac225f01dbc8df1f76ef15d8b8e5d222cf6fab4c622d621 [2024-11-09 15:22:07,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:22:07,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:22:07,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:22:07,497 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:22:07,500 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:22:07,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-nla/dijkstra2-both-nt.c [2024-11-09 15:22:08,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:22:09,057 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:22:09,057 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/dijkstra2-both-nt.c [2024-11-09 15:22:09,065 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba83c8c94/f9dafd414bdb4445a7f37ae9d972a95b/FLAG508ba84c2 [2024-11-09 15:22:09,475 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba83c8c94/f9dafd414bdb4445a7f37ae9d972a95b [2024-11-09 15:22:09,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:22:09,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:22:09,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:22:09,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:22:09,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:22:09,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34691509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09, skipping insertion in model container [2024-11-09 15:22:09,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,499 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:22:09,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:22:09,695 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:22:09,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:22:09,727 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:22:09,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09 WrapperNode [2024-11-09 15:22:09,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:22:09,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:22:09,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:22:09,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:22:09,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,762 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2024-11-09 15:22:09,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:22:09,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:22:09,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:22:09,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:22:09,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,790 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-09 15:22:09,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,790 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,798 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,800 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:22:09,800 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:22:09,801 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:22:09,801 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:22:09,807 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (1/1) ... [2024-11-09 15:22:09,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:22:09,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:22:09,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:22:09,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-09 15:22:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:22:09,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:22:09,922 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:22:09,924 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:22:10,025 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-09 15:22:10,026 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:22:10,038 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:22:10,038 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 15:22:10,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:22:10 BoogieIcfgContainer [2024-11-09 15:22:10,039 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:22:10,040 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 15:22:10,040 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 15:22:10,043 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 15:22:10,044 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:22:10,045 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 03:22:09" (1/3) ... [2024-11-09 15:22:10,046 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54cbb862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 03:22:10, skipping insertion in model container [2024-11-09 15:22:10,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:22:10,047 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:22:09" (2/3) ... [2024-11-09 15:22:10,048 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54cbb862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 03:22:10, skipping insertion in model container [2024-11-09 15:22:10,048 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:22:10,048 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:22:10" (3/3) ... [2024-11-09 15:22:10,049 INFO L332 chiAutomizerObserver]: Analyzing ICFG dijkstra2-both-nt.c [2024-11-09 15:22:10,112 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 15:22:10,113 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 15:22:10,113 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 15:22:10,113 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 15:22:10,113 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 15:22:10,113 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 15:22:10,113 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 15:22:10,114 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 15:22:10,124 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) [2024-11-09 15:22:10,139 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-09 15:22:10,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:22:10,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:22:10,144 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-09 15:22:10,144 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-09 15:22:10,145 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 15:22:10,145 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) [2024-11-09 15:22:10,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-09 15:22:10,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:22:10,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:22:10,147 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-09 15:22:10,147 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-09 15:22:10,158 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 8#L40true assume main_~q~0#1 > main_~n~0#1; 9#L51-1true [2024-11-09 15:22:10,159 INFO L747 eck$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 [2024-11-09 15:22:10,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:22:10,166 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-09 15:22:10,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:22:10,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769783770] [2024-11-09 15:22:10,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:22:10,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:22:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:22:10,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:22:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:22:10,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:22:10,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:22:10,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1420, now seen corresponding path program 1 times [2024-11-09 15:22:10,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:22:10,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627783536] [2024-11-09 15:22:10,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:22:10,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:22:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 15:22:10,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [593309046] [2024-11-09 15:22:10,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:22:10,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:22:10,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:22:10,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:22:10,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:22:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:22:10,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:22:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:22:10,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:22:10,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:22:10,365 INFO L85 PathProgramCache]: Analyzing trace with hash 28693997, now seen corresponding path program 1 times [2024-11-09 15:22:10,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:22:10,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493225312] [2024-11-09 15:22:10,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:22:10,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:22:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 15:22:10,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994669411] [2024-11-09 15:22:10,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:22:10,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:22:10,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:22:10,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:22:10,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:22:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:22:10,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:22:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:22:10,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:22:22,936 WARN L286 SmtUtils]: Spent 12.51s 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) [2024-11-09 15:22:34,979 WARN L286 SmtUtils]: Spent 12.01s 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) [2024-11-09 15:22:48,384 WARN L286 SmtUtils]: Spent 13.40s 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) [2024-11-09 15:23:00,514 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-11-09 15:23:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:23:00,522 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:23:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:23:00,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 03:23:00 BoogieIcfgContainer [2024-11-09 15:23:00,552 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 15:23:00,552 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:23:00,552 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:23:00,553 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:23:00,553 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:22:10" (3/4) ... [2024-11-09 15:23:00,555 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-09 15:23:00,586 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:23:00,586 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:23:00,587 INFO L158 Benchmark]: Toolchain (without parser) took 51108.11ms. Allocated memory is still 184.5MB. Free memory was 125.4MB in the beginning and 65.4MB in the end (delta: 60.0MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-09 15:23:00,587 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 184.5MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:23:00,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.67ms. Allocated memory is still 184.5MB. Free memory was 125.4MB in the beginning and 114.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 15:23:00,588 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.87ms. Allocated memory is still 184.5MB. Free memory was 113.6MB in the beginning and 112.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:23:00,588 INFO L158 Benchmark]: Boogie Preprocessor took 37.27ms. Allocated memory is still 184.5MB. Free memory was 112.4MB in the beginning and 110.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:23:00,588 INFO L158 Benchmark]: RCFGBuilder took 238.43ms. Allocated memory is still 184.5MB. Free memory was 110.8MB in the beginning and 101.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 15:23:00,589 INFO L158 Benchmark]: BuchiAutomizer took 50512.26ms. Allocated memory is still 184.5MB. Free memory was 100.7MB in the beginning and 67.1MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-09 15:23:00,589 INFO L158 Benchmark]: Witness Printer took 33.51ms. Allocated memory is still 184.5MB. Free memory was 67.1MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:23:00,591 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 184.5MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.67ms. Allocated memory is still 184.5MB. Free memory was 125.4MB in the beginning and 114.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.87ms. Allocated memory is still 184.5MB. Free memory was 113.6MB in the beginning and 112.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.27ms. Allocated memory is still 184.5MB. Free memory was 112.4MB in the beginning and 110.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 238.43ms. Allocated memory is still 184.5MB. Free memory was 110.8MB in the beginning and 101.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 50512.26ms. Allocated memory is still 184.5MB. Free memory was 100.7MB in the beginning and 67.1MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 33.51ms. Allocated memory is still 184.5MB. Free memory was 67.1MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 50.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 50.3s. 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! [2024-11-09 15:23:00,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 15:23:00,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 15:23:01,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)