./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/dijkstra1-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 07a5e6dd5643b3fa45a0834b073ae31072ea61ed37e28ad858159ff6ad70dce7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:12:19,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:12:19,378 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-20 22:12:19,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:12:19,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:12:19,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:12:19,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:12:19,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:12:19,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:12:19,422 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:12:19,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:12:19,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:12:19,423 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:12:19,423 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-20 22:12:19,423 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-20 22:12:19,424 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-20 22:12:19,424 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-20 22:12:19,424 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-20 22:12:19,424 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-20 22:12:19,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:12:19,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-20 22:12:19,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 22:12:19,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:12:19,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 22:12:19,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:12:19,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-20 22:12:19,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-20 22:12:19,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-20 22:12:19,431 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:12:19,431 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:12:19,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 22:12:19,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:12:19,432 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-20 22:12:19,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:12:19,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:12:19,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:12:19,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:12:19,435 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:12:19,436 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-20 22:12:19,436 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07a5e6dd5643b3fa45a0834b073ae31072ea61ed37e28ad858159ff6ad70dce7 [2024-11-20 22:12:19,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:12:19,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:12:19,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:12:19,728 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:12:19,729 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:12:19,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c [2024-11-20 22:12:21,253 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:12:21,458 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:12:21,459 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/dijkstra1-both-nt.c [2024-11-20 22:12:21,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b43da5d5/80480b508c9b499ca7497bba96c42a60/FLAG04cba93ae [2024-11-20 22:12:21,847 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b43da5d5/80480b508c9b499ca7497bba96c42a60 [2024-11-20 22:12:21,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:12:21,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:12:21,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:12:21,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:12:21,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:12:21,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:12:21" (1/1) ... [2024-11-20 22:12:21,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d53082b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:21, skipping insertion in model container [2024-11-20 22:12:21,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:12:21" (1/1) ... [2024-11-20 22:12:21,885 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:12:22,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:12:22,063 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:12:22,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:12:22,098 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:12:22,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22 WrapperNode [2024-11-20 22:12:22,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:12:22,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:12:22,100 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:12:22,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:12:22,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (1/1) ... [2024-11-20 22:12:22,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (1/1) ... [2024-11-20 22:12:22,131 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2024-11-20 22:12:22,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:12:22,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:12:22,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:12:22,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:12:22,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (1/1) ... [2024-11-20 22:12:22,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (1/1) ... [2024-11-20 22:12:22,144 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (1/1) ... [2024-11-20 22:12:22,154 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-20 22:12:22,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (1/1) ... [2024-11-20 22:12:22,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (1/1) ... [2024-11-20 22:12:22,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (1/1) ... [2024-11-20 22:12:22,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (1/1) ... [2024-11-20 22:12:22,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (1/1) ... [2024-11-20 22:12:22,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (1/1) ... [2024-11-20 22:12:22,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:12:22,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:12:22,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:12:22,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:12:22,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (1/1) ... [2024-11-20 22:12:22,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:22,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:22,210 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) [2024-11-20 22:12:22,215 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 [2024-11-20 22:12:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:12:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:12:22,320 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:12:22,322 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:12:22,438 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-20 22:12:22,438 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:12:22,452 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:12:22,453 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 22:12:22,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:12:22 BoogieIcfgContainer [2024-11-20 22:12:22,457 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:12:22,458 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-20 22:12:22,458 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-20 22:12:22,463 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-20 22:12:22,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:12:22,464 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:12:21" (1/3) ... [2024-11-20 22:12:22,465 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d4acdee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:12:22, skipping insertion in model container [2024-11-20 22:12:22,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:12:22,467 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:22" (2/3) ... [2024-11-20 22:12:22,467 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d4acdee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:12:22, skipping insertion in model container [2024-11-20 22:12:22,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:12:22,468 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:12:22" (3/3) ... [2024-11-20 22:12:22,474 INFO L332 chiAutomizerObserver]: Analyzing ICFG dijkstra1-both-nt.c [2024-11-20 22:12:22,539 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-20 22:12:22,540 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-20 22:12:22,540 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-20 22:12:22,540 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-20 22:12:22,540 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-20 22:12:22,540 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-20 22:12:22,540 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-20 22:12:22,541 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-20 22:12:22,545 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) [2024-11-20 22:12:22,560 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-20 22:12:22,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:12:22,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:12:22,566 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-20 22:12:22,566 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-20 22:12:22,566 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-20 22:12:22,567 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) [2024-11-20 22:12:22,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-20 22:12:22,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:12:22,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:12:22,568 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-20 22:12:22,568 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-20 22:12:22,576 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 8#L40true assume main_~q~0#1 > main_~n~0#1; 9#L51-1true [2024-11-20 22:12:22,576 INFO L747 eck$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 [2024-11-20 22:12:22,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:22,581 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-20 22:12:22,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:12:22,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159382280] [2024-11-20 22:12:22,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:12:22,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:12:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:22,670 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:12:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:22,703 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:12:22,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:22,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1420, now seen corresponding path program 1 times [2024-11-20 22:12:22,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:12:22,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798290766] [2024-11-20 22:12:22,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:12:22,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:12:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:22,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:12:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:22,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:12:22,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:22,759 INFO L85 PathProgramCache]: Analyzing trace with hash 28693997, now seen corresponding path program 1 times [2024-11-20 22:12:22,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:12:22,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413188001] [2024-11-20 22:12:22,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:12:22,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:12:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:22,794 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:12:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:22,818 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:12:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:23,066 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:12:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:23,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:12:23 BoogieIcfgContainer [2024-11-20 22:12:23,113 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-20 22:12:23,114 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:12:23,117 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:12:23,118 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:12:23,118 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:12:22" (3/4) ... [2024-11-20 22:12:23,121 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-20 22:12:23,151 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 22:12:23,151 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:12:23,153 INFO L158 Benchmark]: Toolchain (without parser) took 1301.47ms. Allocated memory is still 186.6MB. Free memory was 116.8MB in the beginning and 153.0MB in the end (delta: -36.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:12:23,153 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:12:23,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.54ms. Allocated memory is still 186.6MB. Free memory was 116.8MB in the beginning and 105.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-20 22:12:23,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.93ms. Allocated memory is still 186.6MB. Free memory was 105.4MB in the beginning and 103.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:12:23,157 INFO L158 Benchmark]: Boogie Preprocessor took 38.72ms. Allocated memory is still 186.6MB. Free memory was 103.7MB in the beginning and 102.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:12:23,158 INFO L158 Benchmark]: RCFGBuilder took 285.39ms. Allocated memory is still 186.6MB. Free memory was 102.1MB in the beginning and 91.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-20 22:12:23,159 INFO L158 Benchmark]: BuchiAutomizer took 655.72ms. Allocated memory is still 186.6MB. Free memory was 91.6MB in the beginning and 155.1MB in the end (delta: -63.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:12:23,160 INFO L158 Benchmark]: Witness Printer took 37.25ms. Allocated memory is still 186.6MB. Free memory was 155.1MB in the beginning and 154.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:12:23,166 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.54ms. Allocated memory is still 186.6MB. Free memory was 116.8MB in the beginning and 105.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.93ms. Allocated memory is still 186.6MB. Free memory was 105.4MB in the beginning and 103.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.72ms. Allocated memory is still 186.6MB. Free memory was 103.7MB in the beginning and 102.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.39ms. Allocated memory is still 186.6MB. Free memory was 102.1MB in the beginning and 91.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 655.72ms. Allocated memory is still 186.6MB. Free memory was 91.6MB in the beginning and 155.1MB in the end (delta: -63.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.25ms. Allocated memory is still 186.6MB. Free memory was 155.1MB in the beginning and 154.0MB in the end (delta: 1.0MB). 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 0.5s 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! [2024-11-20 22:12:23,186 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)