./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/not-03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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-bwb/not-03.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 285cff35709023846a1bd954129c82df7d866d184fde57b9e9aa336ce7a9f9b8 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:17:50,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:17:50,679 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-09 15:17:50,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:17:50,686 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:17:50,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:17:50,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:17:50,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:17:50,714 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:17:50,715 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:17:50,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:17:50,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:17:50,716 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:17:50,718 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 15:17:50,718 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 15:17:50,718 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 15:17:50,719 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 15:17:50,720 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 15:17:50,721 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 15:17:50,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:17:50,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 15:17:50,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:17:50,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:17:50,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 15:17:50,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 15:17:50,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 15:17:50,724 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:17:50,724 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:17:50,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:17:50,724 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 15:17:50,725 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:17:50,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:17:50,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:17:50,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:17:50,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:17:50,727 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 15:17:50,727 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 285cff35709023846a1bd954129c82df7d866d184fde57b9e9aa336ce7a9f9b8 [2024-11-09 15:17:50,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:17:51,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:17:51,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:17:51,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:17:51,035 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:17:51,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/not-03.c [2024-11-09 15:17:52,439 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:17:52,661 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:17:52,661 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/not-03.c [2024-11-09 15:17:52,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4e67ddc7/27a8a359e8fc4055984b7db6dd985f07/FLAG9ea7474d2 [2024-11-09 15:17:53,029 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4e67ddc7/27a8a359e8fc4055984b7db6dd985f07 [2024-11-09 15:17:53,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:17:53,033 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:17:53,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:17:53,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:17:53,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:17:53,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4410b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53, skipping insertion in model container [2024-11-09 15:17:53,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,057 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:17:53,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:17:53,232 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:17:53,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:17:53,261 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:17:53,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53 WrapperNode [2024-11-09 15:17:53,262 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:17:53,263 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:17:53,263 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:17:53,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:17:53,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,295 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-11-09 15:17:53,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:17:53,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:17:53,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:17:53,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:17:53,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,312 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,318 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-09 15:17:53,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,321 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:17:53,331 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:17:53,331 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:17:53,331 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:17:53,332 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (1/1) ... [2024-11-09 15:17:53,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:53,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:53,375 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 15:17:53,379 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 15:17:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:17:53,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:17:53,494 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:17:53,497 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:17:53,564 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-09 15:17:53,564 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:17:53,578 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:17:53,579 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 15:17:53,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:17:53 BoogieIcfgContainer [2024-11-09 15:17:53,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:17:53,580 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 15:17:53,581 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 15:17:53,585 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 15:17:53,586 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:17:53,586 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 03:17:53" (1/3) ... [2024-11-09 15:17:53,587 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e2dd2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 03:17:53, skipping insertion in model container [2024-11-09 15:17:53,587 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:17:53,587 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:53" (2/3) ... [2024-11-09 15:17:53,588 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e2dd2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 03:17:53, skipping insertion in model container [2024-11-09 15:17:53,588 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:17:53,588 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:17:53" (3/3) ... [2024-11-09 15:17:53,589 INFO L332 chiAutomizerObserver]: Analyzing ICFG not-03.c [2024-11-09 15:17:53,647 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 15:17:53,647 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 15:17:53,647 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 15:17:53,647 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 15:17:53,648 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 15:17:53,648 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 15:17:53,648 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 15:17:53,649 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 15:17:53,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 15:17:53,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-09 15:17:53,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:17:53,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:17:53,676 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-09 15:17:53,676 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-09 15:17:53,677 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 15:17:53,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 15:17:53,678 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-09 15:17:53,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:17:53,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:17:53,679 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-09 15:17:53,679 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-09 15:17:53,686 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L18-2true [2024-11-09 15:17:53,688 INFO L747 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3#L18true assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 6#L18-2true [2024-11-09 15:17:53,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:53,696 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-09 15:17:53,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:53,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273084952] [2024-11-09 15:17:53,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:53,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:53,783 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:53,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:53,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:53,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-11-09 15:17:53,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:53,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877108456] [2024-11-09 15:17:53,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:53,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:53,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:53,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:53,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:53,824 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-11-09 15:17:53,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:53,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054659840] [2024-11-09 15:17:53,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:53,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:53,831 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:53,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:53,955 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:17:53,955 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:17:53,956 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:17:53,956 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:17:53,956 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:17:53,956 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:53,956 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:17:53,956 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:17:53,956 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-03.c_Iteration1_Loop [2024-11-09 15:17:53,957 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:17:53,957 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:17:53,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:54,027 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:17:54,028 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:17:54,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:54,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:54,031 INFO L229 MonitoredProcess]: Starting monitored process 2 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 15:17:54,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-09 15:17:54,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:54,033 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:54,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-09 15:17:54,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:54,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:54,061 INFO L229 MonitoredProcess]: Starting monitored process 3 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 15:17:54,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-09 15:17:54,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:17:54,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:54,101 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:17:54,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-09 15:17:54,107 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:17:54,107 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:17:54,107 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:17:54,107 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:17:54,107 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:17:54,107 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:54,107 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:17:54,108 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:17:54,108 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-03.c_Iteration1_Loop [2024-11-09 15:17:54,108 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:17:54,108 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:17:54,109 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:54,155 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:17:54,160 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:17:54,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:54,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:54,163 INFO L229 MonitoredProcess]: Starting monitored process 4 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 15:17:54,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-09 15:17:54,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 15:17:54,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:17:54,183 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:17:54,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:17:54,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:17:54,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:17:54,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:17:54,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:17:54,194 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:17:54,200 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-09 15:17:54,200 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-09 15:17:54,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:54,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:54,205 INFO L229 MonitoredProcess]: Starting monitored process 5 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 15:17:54,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-09 15:17:54,207 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:17:54,207 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:17:54,208 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:17:54,208 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-09 15:17:54,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-09 15:17:54,231 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:17:54,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:17:54,272 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:17:54,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:17:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:17:54,291 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:17:54,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:17:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:17:54,346 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-09 15:17:54,348 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 15:17:54,398 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 18 states and 25 transitions. Complement of second has 6 states. [2024-11-09 15:17:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-09 15:17:54,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 15:17:54,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2024-11-09 15:17:54,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-09 15:17:54,413 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:17:54,413 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-09 15:17:54,413 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:17:54,413 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-09 15:17:54,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:17:54,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 25 transitions. [2024-11-09 15:17:54,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-09 15:17:54,421 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 9 states and 12 transitions. [2024-11-09 15:17:54,423 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-09 15:17:54,423 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-09 15:17:54,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2024-11-09 15:17:54,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:17:54,424 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-11-09 15:17:54,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2024-11-09 15:17:54,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-11-09 15:17:54,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 15:17:54,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-11-09 15:17:54,477 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-09 15:17:54,478 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-09 15:17:54,479 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 15:17:54,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2024-11-09 15:17:54,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-09 15:17:54,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:17:54,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:17:54,484 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-09 15:17:54,484 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-09 15:17:54,484 INFO L745 eck$LassoCheckResult]: Stem: 67#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 68#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 69#L18-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 62#L18 [2024-11-09 15:17:54,485 INFO L747 eck$LassoCheckResult]: Loop: 62#L18 assume main_~x~0#1 > main_~y~0#1;main_~y~0#1 := -1 - main_~x~0#1; 63#L18-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 62#L18 [2024-11-09 15:17:54,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:54,485 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-09 15:17:54,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:54,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192122111] [2024-11-09 15:17:54,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:54,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:54,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:54,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-09 15:17:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:54,507 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:54,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:54,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2024-11-09 15:17:54,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:54,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911612241] [2024-11-09 15:17:54,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:54,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:17:54,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:17:54,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:17:54,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911612241] [2024-11-09 15:17:54,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911612241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:17:54,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:17:54,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:17:54,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696569486] [2024-11-09 15:17:54,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:17:54,604 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 15:17:54,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:17:54,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:17:54,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:17:54,608 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 15:17:54,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 15:17:54,617 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2024-11-09 15:17:54,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2024-11-09 15:17:54,618 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-09 15:17:54,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2024-11-09 15:17:54,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-09 15:17:54,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-09 15:17:54,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-09 15:17:54,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 15:17:54,618 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 15:17:54,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 15:17:54,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:17:54,619 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 15:17:54,619 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-09 15:17:54,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-09 15:17:54,620 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-09 15:17:54,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-09 15:17:54,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 03:17:54 BoogieIcfgContainer [2024-11-09 15:17:54,627 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 15:17:54,627 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:17:54,627 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:17:54,628 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:17:54,628 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:17:53" (3/4) ... [2024-11-09 15:17:54,630 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 15:17:54,631 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:17:54,631 INFO L158 Benchmark]: Toolchain (without parser) took 1598.89ms. Allocated memory is still 192.9MB. Free memory was 164.3MB in the beginning and 156.6MB in the end (delta: 7.7MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-11-09 15:17:54,632 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 144.7MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:17:54,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.92ms. Allocated memory is still 192.9MB. Free memory was 164.3MB in the beginning and 153.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 15:17:54,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.22ms. Allocated memory is still 192.9MB. Free memory was 153.1MB in the beginning and 152.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:17:54,633 INFO L158 Benchmark]: Boogie Preprocessor took 33.05ms. Allocated memory is still 192.9MB. Free memory was 152.1MB in the beginning and 151.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:17:54,634 INFO L158 Benchmark]: RCFGBuilder took 248.87ms. Allocated memory is still 192.9MB. Free memory was 151.0MB in the beginning and 140.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 15:17:54,634 INFO L158 Benchmark]: BuchiAutomizer took 1046.13ms. Allocated memory is still 192.9MB. Free memory was 140.5MB in the beginning and 156.6MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:17:54,634 INFO L158 Benchmark]: Witness Printer took 3.73ms. Allocated memory is still 192.9MB. Free memory is still 156.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:17:54,637 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 144.7MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.92ms. Allocated memory is still 192.9MB. Free memory was 164.3MB in the beginning and 153.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.22ms. Allocated memory is still 192.9MB. Free memory was 153.1MB in the beginning and 152.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.05ms. Allocated memory is still 192.9MB. Free memory was 152.1MB in the beginning and 151.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 248.87ms. Allocated memory is still 192.9MB. Free memory was 151.0MB in the beginning and 140.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1046.13ms. Allocated memory is still 192.9MB. Free memory was 140.5MB in the beginning and 156.6MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.73ms. Allocated memory is still 192.9MB. Free memory is still 156.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 7 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 46ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-09 15:17:54,666 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 Result: TRUE