./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4a390ef5 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-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.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 086de8df2449d866ff611c83674a9697b7d09f2a2b1c5c922e46b0c1131a7d5c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:48:27,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:48:27,891 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-24 23:48:27,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:48:27,896 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:48:27,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:48:27,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:48:27,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:48:27,933 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:48:27,934 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:48:27,934 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:48:27,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:48:27,935 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:48:27,936 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-24 23:48:27,938 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-24 23:48:27,938 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-24 23:48:27,938 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-24 23:48:27,939 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-24 23:48:27,939 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-24 23:48:27,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:48:27,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-24 23:48:27,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:48:27,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:48:27,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-24 23:48:27,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-24 23:48:27,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-24 23:48:27,944 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:48:27,944 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:48:27,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:48:27,945 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-24 23:48:27,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:48:27,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:48:27,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:48:27,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:48:27,946 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:48:27,946 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-24 23:48:27,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 086de8df2449d866ff611c83674a9697b7d09f2a2b1c5c922e46b0c1131a7d5c [2024-10-24 23:48:28,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:48:28,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:48:28,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:48:28,234 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:48:28,235 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:48:28,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2024-10-24 23:48:29,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:48:29,910 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:48:29,911 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2024-10-24 23:48:29,917 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f664bb8c9/97b938ac533b48fda20b24d26cd26d3a/FLAGeec01ae00 [2024-10-24 23:48:29,929 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f664bb8c9/97b938ac533b48fda20b24d26cd26d3a [2024-10-24 23:48:29,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:48:29,932 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:48:29,934 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:48:29,934 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:48:29,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:48:29,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:48:29" (1/1) ... [2024-10-24 23:48:29,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4775e019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:29, skipping insertion in model container [2024-10-24 23:48:29,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:48:29" (1/1) ... [2024-10-24 23:48:29,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:48:30,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:48:30,108 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:48:30,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:48:30,128 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:48:30,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30 WrapperNode [2024-10-24 23:48:30,129 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:48:30,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:48:30,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:48:30,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:48:30,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (1/1) ... [2024-10-24 23:48:30,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (1/1) ... [2024-10-24 23:48:30,155 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-10-24 23:48:30,155 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:48:30,156 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:48:30,156 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:48:30,156 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:48:30,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (1/1) ... [2024-10-24 23:48:30,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (1/1) ... [2024-10-24 23:48:30,166 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (1/1) ... [2024-10-24 23:48:30,171 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-24 23:48:30,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (1/1) ... [2024-10-24 23:48:30,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (1/1) ... [2024-10-24 23:48:30,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (1/1) ... [2024-10-24 23:48:30,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (1/1) ... [2024-10-24 23:48:30,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (1/1) ... [2024-10-24 23:48:30,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (1/1) ... [2024-10-24 23:48:30,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:48:30,179 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:48:30,179 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:48:30,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:48:30,180 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (1/1) ... [2024-10-24 23:48:30,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:30,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:30,224 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) [2024-10-24 23:48:30,226 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 [2024-10-24 23:48:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:48:30,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:48:30,348 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:48:30,351 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:48:30,421 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-24 23:48:30,421 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:48:30,437 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:48:30,440 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 23:48:30,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:48:30 BoogieIcfgContainer [2024-10-24 23:48:30,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:48:30,442 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-24 23:48:30,442 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-24 23:48:30,447 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-24 23:48:30,447 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-24 23:48:30,448 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 24.10 11:48:29" (1/3) ... [2024-10-24 23:48:30,449 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75339626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.10 11:48:30, skipping insertion in model container [2024-10-24 23:48:30,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-24 23:48:30,449 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:30" (2/3) ... [2024-10-24 23:48:30,450 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75339626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.10 11:48:30, skipping insertion in model container [2024-10-24 23:48:30,450 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-24 23:48:30,451 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:48:30" (3/3) ... [2024-10-24 23:48:30,452 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2024-10-24 23:48:30,511 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-24 23:48:30,512 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-24 23:48:30,512 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-24 23:48:30,512 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-24 23:48:30,512 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-24 23:48:30,513 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-24 23:48:30,513 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-24 23:48:30,513 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-24 23:48:30,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2024-10-24 23:48:30,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-24 23:48:30,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:48:30,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:48:30,538 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-24 23:48:30,538 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-24 23:48:30,539 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-24 23:48:30,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2024-10-24 23:48:30,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-24 23:48:30,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:48:30,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:48:30,541 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-24 23:48:30,541 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-24 23:48:30,548 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L17true assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0; 7#L21-2true [2024-10-24 23:48:30,548 INFO L747 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!(main_~v1~0#1 > 0); 5#L21true assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1; 7#L21-2true [2024-10-24 23:48:30,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:48:30,559 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-10-24 23:48:30,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:48:30,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8705639] [2024-10-24 23:48:30,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:48:30,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:48:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:48:30,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:48:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:48:30,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:48:30,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:48:30,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2024-10-24 23:48:30,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:48:30,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102379336] [2024-10-24 23:48:30,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:48:30,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:48:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:48:30,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:48:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:48:30,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:48:30,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:48:30,671 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2024-10-24 23:48:30,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:48:30,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993580011] [2024-10-24 23:48:30,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:48:30,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:48:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:48:30,681 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:48:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:48:30,689 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:48:30,769 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:48:30,769 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:48:30,769 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:48:30,769 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:48:30,770 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:48:30,770 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:30,770 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:48:30,770 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:48:30,770 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2024-10-24 23:48:30,770 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:48:30,770 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:48:30,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:30,792 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:30,796 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:30,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:30,906 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:48:30,907 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:48:30,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:30,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:30,912 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) [2024-10-24 23:48:30,913 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 [2024-10-24 23:48:30,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:48:30,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:48:30,945 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:48:30,946 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:48:30,959 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 [2024-10-24 23:48:30,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:30,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:30,963 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) [2024-10-24 23:48:30,964 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 [2024-10-24 23:48:30,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:48:30,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:48:30,986 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:48:30,987 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:48:30,998 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 [2024-10-24 23:48:30,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:30,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:31,000 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) [2024-10-24 23:48:31,001 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 [2024-10-24 23:48:31,003 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:48:31,003 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:48:31,029 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 [2024-10-24 23:48:31,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:31,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:31,031 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) [2024-10-24 23:48:31,032 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 [2024-10-24 23:48:31,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:48:31,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:48:31,142 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-24 23:48:31,146 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 [2024-10-24 23:48:31,147 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:48:31,147 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:48:31,147 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:48:31,148 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:48:31,148 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-24 23:48:31,148 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:31,148 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:48:31,148 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:48:31,148 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2024-10-24 23:48:31,148 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:48:31,148 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:48:31,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:31,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:31,171 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:31,177 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:31,258 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:48:31,263 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-24 23:48:31,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:31,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:31,266 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2024-10-24 23:48:31,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-24 23:48:31,270 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 [2024-10-24 23:48:31,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:48:31,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:48:31,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:48:31,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:48:31,291 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-24 23:48:31,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-24 23:48:31,302 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:48:31,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-24 23:48:31,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:31,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:31,324 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2024-10-24 23:48:31,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-24 23:48:31,327 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 [2024-10-24 23:48:31,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:48:31,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:48:31,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:48:31,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:48:31,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:48:31,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:48:31,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:48:31,352 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-24 23:48:31,357 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-10-24 23:48:31,357 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-24 23:48:31,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:31,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:31,381 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2024-10-24 23:48:31,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-24 23:48:31,383 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-24 23:48:31,383 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-24 23:48:31,383 INFO L474 LassoAnalysis]: Proved termination. [2024-10-24 23:48:31,384 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~v2~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2024-10-24 23:48:31,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-24 23:48:31,398 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-24 23:48:31,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:48:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:48:31,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:48:31,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:48:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:48:31,484 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:48:31,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:48:31,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:48:31,529 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-24 23:48:31,531 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-24 23:48:31,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 25 states and 33 transitions. Complement of second has 6 states. [2024-10-24 23:48:31,576 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 [2024-10-24 23:48:31,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-24 23:48:31,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2024-10-24 23:48:31,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2024-10-24 23:48:31,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:48:31,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 2 letters. [2024-10-24 23:48:31,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:48:31,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2024-10-24 23:48:31,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:48:31,588 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2024-10-24 23:48:31,591 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-24 23:48:31,595 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 9 states and 12 transitions. [2024-10-24 23:48:31,597 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-24 23:48:31,597 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-10-24 23:48:31,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2024-10-24 23:48:31,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:48:31,598 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-10-24 23:48:31,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2024-10-24 23:48:31,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-10-24 23:48:31,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2024-10-24 23:48:31,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2024-10-24 23:48:31,623 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-10-24 23:48:31,623 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-10-24 23:48:31,624 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-24 23:48:31,624 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2024-10-24 23:48:31,625 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-24 23:48:31,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:48:31,625 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:48:31,626 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-24 23:48:31,626 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-24 23:48:31,626 INFO L745 eck$LassoCheckResult]: Stem: 78#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 79#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_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 72#L17 assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0; 73#L21-2 assume !!(main_~v1~0#1 > 0); 74#L21 assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0; 75#L21-2 [2024-10-24 23:48:31,626 INFO L747 eck$LassoCheckResult]: Loop: 75#L21-2 assume !!(main_~v1~0#1 > 0); 80#L21 assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1; 75#L21-2 [2024-10-24 23:48:31,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:48:31,628 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2024-10-24 23:48:31,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:48:31,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229382195] [2024-10-24 23:48:31,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:48:31,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:48:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:48:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:48:31,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:48:31,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229382195] [2024-10-24 23:48:31,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229382195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:48:31,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:48:31,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:48:31,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342702515] [2024-10-24 23:48:31,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:48:31,724 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-24 23:48:31,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:48:31,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2024-10-24 23:48:31,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:48:31,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225330342] [2024-10-24 23:48:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:48:31,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:48:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:48:31,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:48:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:48:31,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:48:31,782 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:48:31,782 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:48:31,782 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:48:31,783 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:48:31,783 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:48:31,783 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:31,783 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:48:31,783 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:48:31,783 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration2_Loop [2024-10-24 23:48:31,783 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:48:31,783 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:48:31,786 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:31,792 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:31,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:31,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:31,868 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:48:31,869 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:48:31,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:31,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:31,872 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2024-10-24 23:48:31,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-24 23:48:31,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:48:31,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:48:31,897 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:48:31,897 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:48:31,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-24 23:48:31,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:31,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:31,915 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2024-10-24 23:48:31,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-24 23:48:31,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:48:31,918 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:48:31,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-24 23:48:31,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:31,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:31,946 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2024-10-24 23:48:31,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-24 23:48:31,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:48:31,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:48:32,069 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-24 23:48:32,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-24 23:48:32,075 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:48:32,075 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:48:32,075 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:48:32,075 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:48:32,075 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-24 23:48:32,075 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:32,075 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:48:32,075 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:48:32,075 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration2_Loop [2024-10-24 23:48:32,076 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:48:32,076 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:48:32,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:32,082 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:32,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:32,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:32,157 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:48:32,158 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-24 23:48:32,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:32,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:32,161 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2024-10-24 23:48:32,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-24 23:48:32,163 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 [2024-10-24 23:48:32,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:48:32,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:48:32,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:48:32,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:48:32,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-24 23:48:32,178 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-24 23:48:32,184 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:48:32,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-24 23:48:32,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:32,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:32,202 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2024-10-24 23:48:32,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-24 23:48:32,205 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 [2024-10-24 23:48:32,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:48:32,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:48:32,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:48:32,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:48:32,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:48:32,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:48:32,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:48:32,224 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-24 23:48:32,232 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-10-24 23:48:32,232 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-24 23:48:32,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:32,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:32,237 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2024-10-24 23:48:32,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-24 23:48:32,239 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-24 23:48:32,239 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-24 23:48:32,240 INFO L474 LassoAnalysis]: Proved termination. [2024-10-24 23:48:32,240 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~v2~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2024-10-24 23:48:32,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-24 23:48:32,256 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-24 23:48:32,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:48:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:48:32,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:48:32,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:48:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:48:32,305 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:48:32,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:48:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:48:32,311 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-24 23:48:32,311 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-10-24 23:48:32,322 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 13 states and 18 transitions. Complement of second has 5 states. [2024-10-24 23:48:32,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-24 23:48:32,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-10-24 23:48:32,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-10-24 23:48:32,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2024-10-24 23:48:32,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:48:32,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2024-10-24 23:48:32,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:48:32,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2024-10-24 23:48:32,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:48:32,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2024-10-24 23:48:32,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-24 23:48:32,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2024-10-24 23:48:32,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-24 23:48:32,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-24 23:48:32,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2024-10-24 23:48:32,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:48:32,330 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2024-10-24 23:48:32,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2024-10-24 23:48:32,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-10-24 23:48:32,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2024-10-24 23:48:32,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2024-10-24 23:48:32,332 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2024-10-24 23:48:32,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:48:32,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 23:48:32,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 23:48:32,337 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-24 23:48:32,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:48:32,347 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2024-10-24 23:48:32,347 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2024-10-24 23:48:32,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-24 23:48:32,348 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 14 states and 18 transitions. [2024-10-24 23:48:32,348 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-24 23:48:32,348 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-24 23:48:32,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2024-10-24 23:48:32,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:48:32,349 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2024-10-24 23:48:32,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2024-10-24 23:48:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-10-24 23:48:32,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 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) [2024-10-24 23:48:32,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2024-10-24 23:48:32,352 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-10-24 23:48:32,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:48:32,354 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-10-24 23:48:32,355 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-24 23:48:32,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2024-10-24 23:48:32,356 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-24 23:48:32,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:48:32,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:48:32,357 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1] [2024-10-24 23:48:32,357 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-24 23:48:32,358 INFO L745 eck$LassoCheckResult]: Stem: 167#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 168#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_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 161#L17 assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0; 162#L21-2 assume !!(main_~v1~0#1 > 0); 169#L21 assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1; 173#L21-2 assume !!(main_~v1~0#1 > 0); 172#L21 assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0; 170#L21-2 assume !!(main_~v1~0#1 > 0); 163#L21 assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0; 164#L21-2 [2024-10-24 23:48:32,358 INFO L747 eck$LassoCheckResult]: Loop: 164#L21-2 assume !!(main_~v1~0#1 > 0); 171#L21 assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1; 164#L21-2 [2024-10-24 23:48:32,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:48:32,358 INFO L85 PathProgramCache]: Analyzing trace with hash -446365265, now seen corresponding path program 1 times [2024-10-24 23:48:32,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:48:32,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713593410] [2024-10-24 23:48:32,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:48:32,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:48:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:48:32,424 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:48:32,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:48:32,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713593410] [2024-10-24 23:48:32,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713593410] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:48:32,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100547233] [2024-10-24 23:48:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:48:32,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:48:32,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:32,427 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:48:32,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-24 23:48:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:48:32,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 23:48:32,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:48:32,485 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:48:32,486 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:48:32,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100547233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:48:32,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:48:32,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-24 23:48:32,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224546495] [2024-10-24 23:48:32,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:48:32,487 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-24 23:48:32,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:48:32,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 3 times [2024-10-24 23:48:32,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:48:32,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204186580] [2024-10-24 23:48:32,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:48:32,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:48:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:48:32,492 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:48:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:48:32,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:48:32,525 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:48:32,525 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:48:32,525 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:48:32,525 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:48:32,526 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:48:32,526 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:32,526 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:48:32,526 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:48:32,526 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Loop [2024-10-24 23:48:32,526 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:48:32,526 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:48:32,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:32,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:32,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:32,539 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:32,591 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:48:32,591 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:48:32,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:32,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:32,594 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2024-10-24 23:48:32,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-24 23:48:32,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:48:32,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:48:32,618 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:48:32,618 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:48:32,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-24 23:48:32,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:32,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:32,630 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2024-10-24 23:48:32,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-24 23:48:32,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:48:32,632 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:48:32,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-24 23:48:32,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:32,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:32,655 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2024-10-24 23:48:32,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-24 23:48:32,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:48:32,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:48:32,684 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-24 23:48:32,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-24 23:48:32,689 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:48:32,689 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:48:32,689 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:48:32,690 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:48:32,690 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-24 23:48:32,690 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:32,690 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:48:32,690 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:48:32,690 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Loop [2024-10-24 23:48:32,690 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:48:32,690 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:48:32,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:32,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:32,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:32,712 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:48:32,759 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:48:32,759 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-24 23:48:32,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:32,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:32,761 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2024-10-24 23:48:32,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-24 23:48:32,765 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 [2024-10-24 23:48:32,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:48:32,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:48:32,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:48:32,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:48:32,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:48:32,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:48:32,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:48:32,784 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-24 23:48:32,789 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-24 23:48:32,789 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-24 23:48:32,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:48:32,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:48:32,792 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2024-10-24 23:48:32,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-24 23:48:32,795 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-24 23:48:32,795 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-24 23:48:32,795 INFO L474 LassoAnalysis]: Proved termination. [2024-10-24 23:48:32,796 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v1~0#1) = 1*ULTIMATE.start_main_~v1~0#1 Supporting invariants [] [2024-10-24 23:48:32,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-24 23:48:32,809 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-24 23:48:32,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:48:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:48:32,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:48:32,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:48:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:48:32,844 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:48:32,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:48:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:48:32,857 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 [2024-10-24 23:48:32,858 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-10-24 23:48:32,872 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 19 states and 27 transitions. Complement of second has 4 states. [2024-10-24 23:48:32,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-24 23:48:32,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-10-24 23:48:32,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-10-24 23:48:32,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2024-10-24 23:48:32,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:48:32,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 11 letters. Loop has 2 letters. [2024-10-24 23:48:32,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:48:32,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-24 23:48:32,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:48:32,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 27 transitions. [2024-10-24 23:48:32,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-24 23:48:32,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 18 states and 25 transitions. [2024-10-24 23:48:32,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-24 23:48:32,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-24 23:48:32,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2024-10-24 23:48:32,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:48:32,882 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2024-10-24 23:48:32,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2024-10-24 23:48:32,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2024-10-24 23:48:32,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.4375) internal successors, (23), 15 states have internal predecessors, (23), 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) [2024-10-24 23:48:32,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2024-10-24 23:48:32,883 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 23 transitions. [2024-10-24 23:48:32,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:48:32,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:48:32,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:48:32,886 INFO L87 Difference]: Start difference. First operand 16 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-24 23:48:32,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:48:32,896 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2024-10-24 23:48:32,896 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2024-10-24 23:48:32,897 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-24 23:48:32,897 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2024-10-24 23:48:32,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-24 23:48:32,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-24 23:48:32,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-24 23:48:32,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-24 23:48:32,898 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 23:48:32,898 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 23:48:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:48:32,899 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 23:48:32,899 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-24 23:48:32,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-24 23:48:32,899 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-24 23:48:32,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-24 23:48:32,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 24.10 11:48:32 BoogieIcfgContainer [2024-10-24 23:48:32,907 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-24 23:48:32,908 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 23:48:32,908 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 23:48:32,908 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 23:48:32,909 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:48:30" (3/4) ... [2024-10-24 23:48:32,910 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 23:48:32,911 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 23:48:32,912 INFO L158 Benchmark]: Toolchain (without parser) took 2979.49ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 111.4MB in the beginning and 91.6MB in the end (delta: 19.8MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2024-10-24 23:48:32,912 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:48:32,912 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.37ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 99.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 23:48:32,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.59ms. Allocated memory is still 167.8MB. Free memory was 99.9MB in the beginning and 98.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:48:32,913 INFO L158 Benchmark]: Boogie Preprocessor took 22.88ms. Allocated memory is still 167.8MB. Free memory was 98.7MB in the beginning and 97.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:48:32,914 INFO L158 Benchmark]: RCFGBuilder took 262.07ms. Allocated memory is still 167.8MB. Free memory was 97.2MB in the beginning and 88.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-24 23:48:32,914 INFO L158 Benchmark]: BuchiAutomizer took 2464.98ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 87.9MB in the beginning and 91.6MB in the end (delta: -3.7MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2024-10-24 23:48:32,915 INFO L158 Benchmark]: Witness Printer took 3.53ms. Allocated memory is still 216.0MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:48:32,917 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.37ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 99.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.59ms. Allocated memory is still 167.8MB. Free memory was 99.9MB in the beginning and 98.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.88ms. Allocated memory is still 167.8MB. Free memory was 98.7MB in the beginning and 97.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 262.07ms. Allocated memory is still 167.8MB. Free memory was 97.2MB in the beginning and 88.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2464.98ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 87.9MB in the beginning and 91.6MB in the end (delta: -3.7MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * Witness Printer took 3.53ms. Allocated memory is still 216.0MB. Free memory is still 91.6MB. 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 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) -1 * v2) + m) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * v2) + m) and consists of 3 locations. One deterministic module has affine ranking function v1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 34 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-24 23:48:32,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-24 23:48:33,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-24 23:48:33,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-24 23:48:33,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-24 23:48:33,751 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