./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 023d838f 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-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:35:37,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:35:37,240 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-10 22:35:37,249 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:35:37,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:35:37,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 22:35:37,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:35:37,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:35:37,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:35:37,282 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:35:37,283 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:35:37,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:35:37,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:35:37,287 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:35:37,287 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 22:35:37,287 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 22:35:37,287 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 22:35:37,288 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 22:35:37,288 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 22:35:37,288 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 22:35:37,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:35:37,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 22:35:37,290 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:35:37,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:35:37,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:35:37,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:35:37,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 22:35:37,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 22:35:37,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 22:35:37,292 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:35:37,292 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:35:37,292 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:35:37,293 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:35:37,293 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 22:35:37,293 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:35:37,294 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:35:37,294 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:35:37,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:35:37,295 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:35:37,295 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 22:35:37,295 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e7687da568dfe273ac225f01dbc8df1f76ef15d8b8e5d222cf6fab4c622d621 [2024-11-10 22:35:37,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:35:37,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:35:37,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:35:37,637 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:35:37,638 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:35:37,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-nla/dijkstra2-both-nt.c [2024-11-10 22:35:39,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:35:39,220 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:35:39,221 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/dijkstra2-both-nt.c [2024-11-10 22:35:39,230 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f374fbcd3/5551de1663ba4d848f3ce2c94657d10b/FLAG13a3b0192 [2024-11-10 22:35:39,243 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f374fbcd3/5551de1663ba4d848f3ce2c94657d10b [2024-11-10 22:35:39,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:35:39,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:35:39,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:35:39,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:35:39,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:35:39,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263abad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39, skipping insertion in model container [2024-11-10 22:35:39,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,276 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:35:39,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:35:39,435 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:35:39,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:35:39,467 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:35:39,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39 WrapperNode [2024-11-10 22:35:39,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:35:39,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:35:39,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:35:39,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:35:39,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,494 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-11-10 22:35:39,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:35:39,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:35:39,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:35:39,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:35:39,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,504 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,509 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-10 22:35:39,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,511 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:35:39,514 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:35:39,515 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:35:39,515 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:35:39,515 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (1/1) ... [2024-11-10 22:35:39,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:35:39,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:35:39,545 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) [2024-11-10 22:35:39,547 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 [2024-11-10 22:35:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:35:39,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:35:39,626 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:35:39,628 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:35:39,723 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-10 22:35:39,723 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:35:39,733 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:35:39,733 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:35:39,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:35:39 BoogieIcfgContainer [2024-11-10 22:35:39,734 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:35:39,735 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 22:35:39,735 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 22:35:39,739 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 22:35:39,740 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:35:39,740 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 10:35:39" (1/3) ... [2024-11-10 22:35:39,759 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@150aca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:35:39, skipping insertion in model container [2024-11-10 22:35:39,759 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:35:39,759 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:35:39" (2/3) ... [2024-11-10 22:35:39,760 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@150aca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:35:39, skipping insertion in model container [2024-11-10 22:35:39,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:35:39,760 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:35:39" (3/3) ... [2024-11-10 22:35:39,763 INFO L332 chiAutomizerObserver]: Analyzing ICFG dijkstra2-both-nt.c [2024-11-10 22:35:39,834 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 22:35:39,834 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 22:35:39,834 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 22:35:39,834 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 22:35:39,834 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 22:35:39,834 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 22:35:39,834 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 22:35:39,835 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 22:35:39,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2024-11-10 22:35:39,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-10 22:35:39,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:35:39,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:35:39,852 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-10 22:35:39,852 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-10 22:35:39,853 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 22:35:39,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2024-11-10 22:35:39,854 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-10 22:35:39,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:35:39,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:35:39,854 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-10 22:35:39,854 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-10 22:35:39,861 INFO L745 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 5#ULTIMATE.init_returnLabel#1true assume true;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; 9#L40true assume main_~q~0#1 > main_~n~0#1; 3#L41true [2024-11-10 22:35:39,861 INFO L747 eck$LassoCheckResult]: Loop: 3#L41true assume true; 8#L41-1true 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); 6#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); 3#L41true [2024-11-10 22:35:39,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:35:39,866 INFO L85 PathProgramCache]: Analyzing trace with hash 43659, now seen corresponding path program 1 times [2024-11-10 22:35:39,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:35:39,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517822495] [2024-11-10 22:35:39,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:35:39,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:35:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:35:39,943 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:35:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:35:39,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:35:39,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:35:39,967 INFO L85 PathProgramCache]: Analyzing trace with hash 38694, now seen corresponding path program 1 times [2024-11-10 22:35:39,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:35:39,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856234606] [2024-11-10 22:35:39,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:35:39,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:35:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 22:35:40,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519822094] [2024-11-10 22:35:40,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:35:40,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:35:40,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:35:40,007 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) [2024-11-10 22:35:40,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:35:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:35:40,080 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:35:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:35:40,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:35:40,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:35:40,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1300654172, now seen corresponding path program 1 times [2024-11-10 22:35:40,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:35:40,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768676288] [2024-11-10 22:35:40,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:35:40,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:35:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 22:35:40,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1667038639] [2024-11-10 22:35:40,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:35:40,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:35:40,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:35:40,109 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) [2024-11-10 22:35:40,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:35:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:35:40,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:35:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:35:40,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:35:54,493 WARN L286 SmtUtils]: Spent 14.33s 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) [2024-11-10 22:36:06,553 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) [2024-11-10 22:36:19,903 WARN L286 SmtUtils]: Spent 13.34s 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) [2024-11-10 22:36:32,912 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) [2024-11-10 22:36:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:36:32,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:36:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:36:32,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 10:36:32 BoogieIcfgContainer [2024-11-10 22:36:32,947 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 22:36:32,948 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:36:32,948 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:36:32,949 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:36:32,949 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:35:39" (3/4) ... [2024-11-10 22:36:32,951 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-10 22:36:32,989 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:36:32,989 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:36:32,992 INFO L158 Benchmark]: Toolchain (without parser) took 53744.78ms. Allocated memory is still 161.5MB. Free memory was 84.8MB in the beginning and 97.2MB in the end (delta: -12.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:36:32,992 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 161.5MB. Free memory is still 131.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:36:32,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.38ms. Allocated memory is still 161.5MB. Free memory was 84.4MB in the beginning and 73.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 22:36:32,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.95ms. Allocated memory is still 161.5MB. Free memory was 73.0MB in the beginning and 71.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:36:32,994 INFO L158 Benchmark]: Boogie Preprocessor took 18.71ms. Allocated memory is still 161.5MB. Free memory was 71.8MB in the beginning and 70.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:36:32,994 INFO L158 Benchmark]: IcfgBuilder took 219.81ms. Allocated memory is still 161.5MB. Free memory was 70.4MB in the beginning and 59.2MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 22:36:32,995 INFO L158 Benchmark]: BuchiAutomizer took 53212.52ms. Allocated memory is still 161.5MB. Free memory was 59.2MB in the beginning and 98.5MB in the end (delta: -39.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:36:32,998 INFO L158 Benchmark]: Witness Printer took 40.76ms. Allocated memory is still 161.5MB. Free memory was 98.5MB in the beginning and 97.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:36:33,000 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 161.5MB. Free memory is still 131.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.38ms. Allocated memory is still 161.5MB. Free memory was 84.4MB in the beginning and 73.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.95ms. Allocated memory is still 161.5MB. Free memory was 73.0MB in the beginning and 71.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.71ms. Allocated memory is still 161.5MB. Free memory was 71.8MB in the beginning and 70.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 219.81ms. Allocated memory is still 161.5MB. Free memory was 70.4MB in the beginning and 59.2MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 53212.52ms. Allocated memory is still 161.5MB. Free memory was 59.2MB in the beginning and 98.5MB in the end (delta: -39.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 40.76ms. Allocated memory is still 161.5MB. Free memory was 98.5MB in the beginning and 97.2MB in the end (delta: 1.3MB). 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 53.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 53.0s. 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! [2024-11-10 22:36:33,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:36:33,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:36:33,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)