./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-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:12:50,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:12:50,612 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-12 00:12:50,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:12:50,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:12:50,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:12:50,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:12:50,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:12:50,642 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:12:50,642 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:12:50,643 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:12:50,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:12:50,643 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:12:50,643 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-12 00:12:50,644 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-12 00:12:50,644 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-12 00:12:50,644 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-12 00:12:50,645 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-12 00:12:50,645 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-12 00:12:50,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:12:50,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-12 00:12:50,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:12:50,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:12:50,647 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-12 00:12:50,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-12 00:12:50,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-12 00:12:50,647 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:12:50,648 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:12:50,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:12:50,648 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-12 00:12:50,648 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:12:50,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:12:50,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:12:50,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:12:50,650 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:12:50,650 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-12 00:12:50,652 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2024-10-12 00:12:50,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:12:50,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:12:50,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:12:50,899 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:12:50,899 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:12:50,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-10-12 00:12:52,293 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:12:52,454 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:12:52,455 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-10-12 00:12:52,461 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9b93ad7ac/2c39b75f0eca402f97740291c712f3aa/FLAG70ca8a7b6 [2024-10-12 00:12:52,471 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9b93ad7ac/2c39b75f0eca402f97740291c712f3aa [2024-10-12 00:12:52,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:12:52,475 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:12:52,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:12:52,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:12:52,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:12:52,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@649f53dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52, skipping insertion in model container [2024-10-12 00:12:52,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:12:52,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:12:52,657 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:12:52,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:12:52,681 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:12:52,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52 WrapperNode [2024-10-12 00:12:52,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:12:52,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:12:52,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:12:52,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:12:52,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,706 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2024-10-12 00:12:52,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:12:52,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:12:52,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:12:52,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:12:52,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,724 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-12 00:12:52,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,730 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:12:52,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:12:52,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:12:52,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:12:52,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (1/1) ... [2024-10-12 00:12:52,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:52,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:52,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:52,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-12 00:12:52,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:12:52,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:12:52,876 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:12:52,878 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:12:52,938 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-10-12 00:12:52,939 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:12:52,953 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:12:52,954 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 00:12:52,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:12:52 BoogieIcfgContainer [2024-10-12 00:12:52,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:12:52,955 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-12 00:12:52,955 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-12 00:12:52,959 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-12 00:12:52,960 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:12:52,960 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 12:12:52" (1/3) ... [2024-10-12 00:12:52,961 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77782f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:12:52, skipping insertion in model container [2024-10-12 00:12:52,961 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:12:52,961 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:12:52" (2/3) ... [2024-10-12 00:12:52,961 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77782f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:12:52, skipping insertion in model container [2024-10-12 00:12:52,961 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:12:52,961 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:12:52" (3/3) ... [2024-10-12 00:12:52,963 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-10-12 00:12:53,023 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-12 00:12:53,023 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-12 00:12:53,023 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-12 00:12:53,024 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-12 00:12:53,024 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-12 00:12:53,024 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-12 00:12:53,024 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-12 00:12:53,024 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-12 00:12:53,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) 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) [2024-10-12 00:12:53,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-12 00:12:53,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:12:53,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:12:53,047 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-12 00:12:53,047 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:12:53,048 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-12 00:12:53,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) 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) [2024-10-12 00:12:53,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-12 00:12:53,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:12:53,049 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:12:53,049 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-12 00:12:53,050 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:12:53,055 INFO L745 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 7#L18-2true [2024-10-12 00:12:53,056 INFO L747 eck$LassoCheckResult]: Loop: 7#L18-2true assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 12#L19true assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 2#L19-2true main_~y~0#1 := main_~y~0#1 - 1; 7#L18-2true [2024-10-12 00:12:53,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:53,062 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-12 00:12:53,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:53,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385711916] [2024-10-12 00:12:53,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:53,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:53,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:53,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:53,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:53,191 INFO L85 PathProgramCache]: Analyzing trace with hash 41516, now seen corresponding path program 1 times [2024-10-12 00:12:53,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:53,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252137880] [2024-10-12 00:12:53,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:53,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:53,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:53,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:53,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:53,218 INFO L85 PathProgramCache]: Analyzing trace with hash 28700458, now seen corresponding path program 1 times [2024-10-12 00:12:53,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:53,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722182356] [2024-10-12 00:12:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:53,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:53,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:53,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:53,313 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:53,313 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:53,313 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:53,313 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:53,314 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:12:53,314 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,314 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:53,314 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:53,314 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2024-10-12 00:12:53,314 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:53,314 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:53,326 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:53,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:53,338 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:53,341 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:53,343 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:53,400 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:53,400 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:12:53,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:53,403 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:53,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-12 00:12:53,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:53,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:53,427 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:53,428 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: [] [2024-10-12 00:12:53,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:53,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:53,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:53,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-12 00:12:53,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:53,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:53,466 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:53,466 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: [] [2024-10-12 00:12:53,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:53,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:53,479 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:53,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-12 00:12:53,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:53,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:53,503 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:53,504 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:12:53,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:53,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:53,517 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:53,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-12 00:12:53,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:53,528 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:53,541 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:53,541 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:12:53,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:53,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:53,560 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:53,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-12 00:12:53,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:53,565 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:53,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-12 00:12:53,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:53,597 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:53,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:12:53,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-12 00:12:53,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:53,631 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:12:53,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:53,637 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:53,637 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:53,637 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:53,637 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:53,638 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:12:53,638 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,639 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:53,639 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:53,640 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2024-10-12 00:12:53,640 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:53,640 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:53,642 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:53,646 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:53,649 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:53,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:53,660 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:53,706 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:53,711 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:12:53,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:53,714 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:53,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-12 00:12:53,717 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 [2024-10-12 00:12:53,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:53,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:53,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:53,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:53,732 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:12:53,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:12:53,737 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:53,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-12 00:12:53,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:53,750 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:53,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-12 00:12:53,753 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 [2024-10-12 00:12:53,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:53,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:53,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:53,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:53,766 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:12:53,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:12:53,775 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:53,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-12 00:12:53,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:53,788 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:53,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-12 00:12:53,791 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 [2024-10-12 00:12:53,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:53,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:53,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:53,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:53,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:53,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:53,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:53,804 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:53,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-12 00:12:53,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:53,817 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:53,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-12 00:12:53,819 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 [2024-10-12 00:12:53,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:53,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:53,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:53,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:53,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:53,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:53,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:53,832 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:53,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-12 00:12:53,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:53,845 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:53,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-12 00:12:53,847 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 [2024-10-12 00:12:53,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:53,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:53,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:53,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:53,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:53,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:53,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:53,861 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:12:53,864 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:12:53,864 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:12:53,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:53,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:53,885 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:53,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-12 00:12:53,887 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:12:53,887 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:12:53,888 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:12:53,888 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2024-10-12 00:12:53,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-12 00:12:53,902 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:12:53,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:53,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:12:53,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:53,941 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:12:53,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:54,003 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 [2024-10-12 00:12:54,005 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) 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) 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) [2024-10-12 00:12:54,077 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) 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). 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 39 states and 60 transitions. Complement of second has 6 states. [2024-10-12 00:12:54,083 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 [2024-10-12 00:12:54,091 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) [2024-10-12 00:12:54,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2024-10-12 00:12:54,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 2 letters. Loop has 3 letters. [2024-10-12 00:12:54,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:54,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 5 letters. Loop has 3 letters. [2024-10-12 00:12:54,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:54,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 2 letters. Loop has 6 letters. [2024-10-12 00:12:54,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:54,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 60 transitions. [2024-10-12 00:12:54,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-12 00:12:54,099 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 21 states and 30 transitions. [2024-10-12 00:12:54,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-12 00:12:54,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-12 00:12:54,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2024-10-12 00:12:54,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:12:54,100 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2024-10-12 00:12:54,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2024-10-12 00:12:54,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-10-12 00:12:54,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 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) [2024-10-12 00:12:54,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2024-10-12 00:12:54,151 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2024-10-12 00:12:54,151 INFO L425 stractBuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2024-10-12 00:12:54,151 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-12 00:12:54,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2024-10-12 00:12:54,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-12 00:12:54,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:12:54,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:12:54,152 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:12:54,152 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:12:54,152 INFO L745 eck$LassoCheckResult]: Stem: 106#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 107#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_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 95#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 97#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 98#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 99#L20-1 assume !main_#t~short3#1; 102#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 103#L20-5 [2024-10-12 00:12:54,152 INFO L747 eck$LassoCheckResult]: Loop: 103#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 110#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 111#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 103#L20-5 [2024-10-12 00:12:54,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:54,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1810663475, now seen corresponding path program 1 times [2024-10-12 00:12:54,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:54,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335345233] [2024-10-12 00:12:54,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:54,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:54,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-12 00:12:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:54,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:12:54,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335345233] [2024-10-12 00:12:54,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335345233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:12:54,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:12:54,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:12:54,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385073987] [2024-10-12 00:12:54,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:12:54,247 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-12 00:12:54,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:54,249 INFO L85 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 1 times [2024-10-12 00:12:54,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:54,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725829374] [2024-10-12 00:12:54,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:54,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:54,260 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:54,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:54,334 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:54,335 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:54,335 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:54,335 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:54,335 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:12:54,335 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:54,335 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:54,335 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:54,335 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2024-10-12 00:12:54,336 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:54,336 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:54,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:54,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:54,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:54,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:54,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:54,398 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:54,398 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:12:54,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:54,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:54,400 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:54,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-12 00:12:54,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:54,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:54,420 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:54,421 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: [] [2024-10-12 00:12:54,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-12 00:12:54,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:54,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:54,435 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:54,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-12 00:12:54,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:54,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:54,455 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:54,456 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:12:54,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-12 00:12:54,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:54,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:54,470 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:54,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-12 00:12:54,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:54,484 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:54,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:54,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:54,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:54,513 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:54,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-12 00:12:54,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:12:54,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:54,639 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:12:54,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-12 00:12:54,645 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:54,645 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:54,646 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:54,646 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:54,646 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:12:54,646 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:54,646 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:54,646 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:54,646 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2024-10-12 00:12:54,646 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:54,646 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:54,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:54,659 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:54,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:54,666 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:54,671 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:54,707 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:54,707 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:12:54,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:54,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:54,709 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:54,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-12 00:12:54,712 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 [2024-10-12 00:12:54,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:54,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:54,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:54,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:54,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:12:54,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:12:54,729 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:54,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-12 00:12:54,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:54,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:54,751 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:54,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-12 00:12:54,755 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 [2024-10-12 00:12:54,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:54,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:54,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:54,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:54,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:54,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:54,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:54,772 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:12:54,780 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:12:54,780 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:12:54,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:54,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:54,783 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:54,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-12 00:12:54,789 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:12:54,792 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:12:54,792 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:12:54,792 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [] [2024-10-12 00:12:54,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-12 00:12:54,816 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:12:54,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:54,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:12:54,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:54,876 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:12:54,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:54,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:54,984 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:12:54,985 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:55,033 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 63 transitions. Complement of second has 10 states. [2024-10-12 00:12:55,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:12:55,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:55,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2024-10-12 00:12:55,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-12 00:12:55,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:55,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-12 00:12:55,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:55,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2024-10-12 00:12:55,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:55,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 63 transitions. [2024-10-12 00:12:55,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-12 00:12:55,040 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 33 states and 46 transitions. [2024-10-12 00:12:55,040 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-10-12 00:12:55,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-10-12 00:12:55,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 46 transitions. [2024-10-12 00:12:55,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:12:55,041 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 46 transitions. [2024-10-12 00:12:55,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 46 transitions. [2024-10-12 00:12:55,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2024-10-12 00:12:55,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 26 states have internal predecessors, (40), 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) [2024-10-12 00:12:55,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2024-10-12 00:12:55,043 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 40 transitions. [2024-10-12 00:12:55,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:12:55,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:12:55,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:12:55,047 INFO L87 Difference]: Start difference. First operand 27 states and 40 transitions. Second operand has 3 states, 2 states have (on average 3.5) 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) [2024-10-12 00:12:55,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:12:55,061 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2024-10-12 00:12:55,062 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2024-10-12 00:12:55,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-10-12 00:12:55,064 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 30 states and 40 transitions. [2024-10-12 00:12:55,064 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-10-12 00:12:55,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-10-12 00:12:55,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2024-10-12 00:12:55,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:12:55,064 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 40 transitions. [2024-10-12 00:12:55,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2024-10-12 00:12:55,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2024-10-12 00:12:55,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 26 states have internal predecessors, (37), 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) [2024-10-12 00:12:55,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2024-10-12 00:12:55,066 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-10-12 00:12:55,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:12:55,067 INFO L425 stractBuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-10-12 00:12:55,067 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-12 00:12:55,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 37 transitions. [2024-10-12 00:12:55,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-10-12 00:12:55,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:12:55,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:12:55,070 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:12:55,070 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:12:55,070 INFO L745 eck$LassoCheckResult]: Stem: 287#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 288#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_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 276#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 278#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 292#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 297#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 284#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 285#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 282#L20-1 assume !main_#t~short3#1; 289#L20-3 [2024-10-12 00:12:55,070 INFO L747 eck$LassoCheckResult]: Loop: 289#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 294#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 272#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 273#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 296#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 279#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 280#L20-1 assume !main_#t~short3#1; 289#L20-3 [2024-10-12 00:12:55,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:55,071 INFO L85 PathProgramCache]: Analyzing trace with hash 585785626, now seen corresponding path program 1 times [2024-10-12 00:12:55,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:55,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936577971] [2024-10-12 00:12:55,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:55,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:55,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:55,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:55,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:55,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1831936327, now seen corresponding path program 1 times [2024-10-12 00:12:55,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:55,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168311583] [2024-10-12 00:12:55,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:55,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:55,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:55,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:55,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:55,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2046492146, now seen corresponding path program 1 times [2024-10-12 00:12:55,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:55,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012136584] [2024-10-12 00:12:55,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:55,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:55,255 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:55,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:12:55,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012136584] [2024-10-12 00:12:55,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012136584] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:12:55,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833568511] [2024-10-12 00:12:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:55,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:12:55,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:55,258 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:12:55,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-12 00:12:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:55,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 00:12:55,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:55,394 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:55,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:12:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:55,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833568511] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:12:55,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:12:55,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-10-12 00:12:55,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210211528] [2024-10-12 00:12:55,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:12:55,543 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:55,543 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:55,543 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:55,543 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:55,544 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:12:55,544 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:55,544 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:55,544 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:55,544 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2024-10-12 00:12:55,544 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:55,544 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:55,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,551 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,561 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,563 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,565 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,627 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:55,627 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:12:55,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:55,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:55,629 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:55,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-12 00:12:55,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:55,632 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:55,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:55,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:55,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:55,665 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:55,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-12 00:12:55,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:12:55,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:55,744 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:12:55,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-10-12 00:12:55,749 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:55,750 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:55,750 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:55,750 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:55,750 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:12:55,750 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:55,750 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:55,750 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:55,750 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2024-10-12 00:12:55,750 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:55,750 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:55,751 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,762 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,769 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,776 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:55,824 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:55,824 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:12:55,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:55,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:55,826 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:55,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-12 00:12:55,827 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 [2024-10-12 00:12:55,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:55,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:55,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:55,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:55,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:55,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:55,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:55,840 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:12:55,843 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:12:55,844 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-12 00:12:55,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:55,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:55,845 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:55,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-12 00:12:55,847 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:12:55,847 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:12:55,847 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:12:55,847 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-12 00:12:55,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-10-12 00:12:55,859 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:12:55,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:55,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:12:55,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:55,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:12:55,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:55,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:55,914 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:12:55,914 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 37 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:55,937 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 37 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 92 states and 128 transitions. Complement of second has 6 states. [2024-10-12 00:12:55,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-12 00:12:55,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:55,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2024-10-12 00:12:55,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 7 letters. [2024-10-12 00:12:55,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:55,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 16 letters. Loop has 7 letters. [2024-10-12 00:12:55,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:55,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 14 letters. [2024-10-12 00:12:55,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:55,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 128 transitions. [2024-10-12 00:12:55,945 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2024-10-12 00:12:55,946 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 68 states and 93 transitions. [2024-10-12 00:12:55,946 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-10-12 00:12:55,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-10-12 00:12:55,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2024-10-12 00:12:55,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:12:55,947 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 93 transitions. [2024-10-12 00:12:55,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2024-10-12 00:12:55,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2024-10-12 00:12:55,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 57 states have internal predecessors, (80), 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) [2024-10-12 00:12:55,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2024-10-12 00:12:55,951 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 80 transitions. [2024-10-12 00:12:55,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:12:55,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-12 00:12:55,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-10-12 00:12:55,952 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2024-10-12 00:12:56,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:12:56,231 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2024-10-12 00:12:56,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 143 transitions. [2024-10-12 00:12:56,234 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 38 [2024-10-12 00:12:56,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 97 states and 122 transitions. [2024-10-12 00:12:56,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2024-10-12 00:12:56,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2024-10-12 00:12:56,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 122 transitions. [2024-10-12 00:12:56,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:12:56,235 INFO L218 hiAutomatonCegarLoop]: Abstraction has 97 states and 122 transitions. [2024-10-12 00:12:56,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 122 transitions. [2024-10-12 00:12:56,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 78. [2024-10-12 00:12:56,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 77 states have internal predecessors, (102), 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) [2024-10-12 00:12:56,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 102 transitions. [2024-10-12 00:12:56,243 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 102 transitions. [2024-10-12 00:12:56,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-12 00:12:56,244 INFO L425 stractBuchiCegarLoop]: Abstraction has 78 states and 102 transitions. [2024-10-12 00:12:56,244 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-12 00:12:56,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 102 transitions. [2024-10-12 00:12:56,245 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2024-10-12 00:12:56,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:12:56,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:12:56,245 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-10-12 00:12:56,245 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:12:56,245 INFO L745 eck$LassoCheckResult]: Stem: 786#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 787#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 791#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 792#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 793#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 847#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 846#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 845#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 788#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 783#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 784#L20-6 [2024-10-12 00:12:56,245 INFO L747 eck$LassoCheckResult]: Loop: 784#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 796#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 842#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 841#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 840#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 839#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 837#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 784#L20-6 [2024-10-12 00:12:56,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:56,245 INFO L85 PathProgramCache]: Analyzing trace with hash 979485188, now seen corresponding path program 1 times [2024-10-12 00:12:56,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:56,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042809364] [2024-10-12 00:12:56,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:56,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:56,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:56,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:56,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:56,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1343300367, now seen corresponding path program 1 times [2024-10-12 00:12:56,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:56,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509968928] [2024-10-12 00:12:56,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:56,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:56,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:56,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:56,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:56,268 INFO L85 PathProgramCache]: Analyzing trace with hash 303194510, now seen corresponding path program 1 times [2024-10-12 00:12:56,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:56,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118063734] [2024-10-12 00:12:56,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:56,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:56,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:56,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:56,343 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:56,344 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:56,344 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:56,344 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:56,344 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:12:56,344 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:56,344 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:56,344 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:56,344 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2024-10-12 00:12:56,344 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:56,344 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:56,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,350 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:56,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:56,514 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:56,514 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:12:56,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:56,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:56,516 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:56,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-12 00:12:56,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:56,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:56,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:56,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:56,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:56,562 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:56,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-12 00:12:56,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:12:56,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:56,676 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:12:56,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-10-12 00:12:56,683 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:56,683 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:56,683 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:56,683 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:56,683 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:12:56,683 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:56,683 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:56,683 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:56,683 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2024-10-12 00:12:56,683 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:56,683 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:56,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,710 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:56,779 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:56,779 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:12:56,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:56,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:56,782 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:56,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-12 00:12:56,786 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 [2024-10-12 00:12:56,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:56,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:56,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:56,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:56,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:56,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:56,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:56,804 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:56,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:56,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:56,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:56,822 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:56,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-12 00:12:56,824 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 [2024-10-12 00:12:56,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:56,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:56,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:56,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:56,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:56,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:56,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:56,840 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:12:56,842 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-12 00:12:56,842 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:12:56,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:56,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:56,843 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:56,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-12 00:12:56,846 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:12:56,846 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:12:56,846 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:12:56,846 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-10-12 00:12:56,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:56,862 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:12:56,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:56,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:12:56,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:56,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:12:56,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:56,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:56,937 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:12:56,937 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states and 102 transitions. cyclomatic complexity: 32 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:56,962 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states and 102 transitions. cyclomatic complexity: 32. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 180 states and 242 transitions. Complement of second has 7 states. [2024-10-12 00:12:56,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-12 00:12:56,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:56,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-10-12 00:12:56,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 7 letters. [2024-10-12 00:12:56,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:56,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 7 letters. [2024-10-12 00:12:56,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:56,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 14 letters. [2024-10-12 00:12:56,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:56,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 242 transitions. [2024-10-12 00:12:56,966 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2024-10-12 00:12:56,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 148 states and 194 transitions. [2024-10-12 00:12:56,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2024-10-12 00:12:56,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2024-10-12 00:12:56,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 194 transitions. [2024-10-12 00:12:56,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:12:56,968 INFO L218 hiAutomatonCegarLoop]: Abstraction has 148 states and 194 transitions. [2024-10-12 00:12:56,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 194 transitions. [2024-10-12 00:12:56,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 135. [2024-10-12 00:12:56,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 135 states have (on average 1.3407407407407408) internal successors, (181), 134 states have internal predecessors, (181), 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) [2024-10-12 00:12:56,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 181 transitions. [2024-10-12 00:12:56,980 INFO L240 hiAutomatonCegarLoop]: Abstraction has 135 states and 181 transitions. [2024-10-12 00:12:56,980 INFO L425 stractBuchiCegarLoop]: Abstraction has 135 states and 181 transitions. [2024-10-12 00:12:56,980 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-12 00:12:56,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 181 transitions. [2024-10-12 00:12:56,981 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2024-10-12 00:12:56,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:12:56,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:12:56,981 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-12 00:12:56,982 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:12:56,982 INFO L745 eck$LassoCheckResult]: Stem: 1118#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1119#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_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 1126#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 1154#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1157#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1159#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1158#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 1156#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 1155#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1152#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 1122#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1123#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1183#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1182#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 1180#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1181#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1219#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 1203#L20-6 [2024-10-12 00:12:56,982 INFO L747 eck$LassoCheckResult]: Loop: 1203#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 1213#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1216#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 1212#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1210#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1207#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1202#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 1203#L20-6 [2024-10-12 00:12:56,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:56,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1428366776, now seen corresponding path program 2 times [2024-10-12 00:12:56,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:56,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346296256] [2024-10-12 00:12:56,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:56,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:57,028 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-12 00:12:57,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:12:57,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346296256] [2024-10-12 00:12:57,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346296256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:12:57,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:12:57,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:12:57,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316032577] [2024-10-12 00:12:57,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:12:57,029 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-12 00:12:57,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:57,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1343300367, now seen corresponding path program 2 times [2024-10-12 00:12:57,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:57,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496449310] [2024-10-12 00:12:57,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:57,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:57,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:57,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:57,088 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:57,088 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:57,088 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:57,088 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:57,089 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:12:57,089 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,089 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:57,089 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:57,089 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2024-10-12 00:12:57,089 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:57,089 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:57,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,094 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,102 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,147 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:57,147 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:12:57,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:57,154 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:57,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-12 00:12:57,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:57,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:57,167 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:57,167 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_7=0} Honda state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:12:57,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-10-12 00:12:57,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:57,186 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:57,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-12 00:12:57,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:57,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:57,203 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:57,203 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:12:57,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:57,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:57,217 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:57,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-12 00:12:57,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:57,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:57,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:57,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:57,245 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:57,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-12 00:12:57,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:12:57,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:57,328 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:12:57,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:57,335 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:57,335 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:57,335 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:57,335 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:57,335 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:12:57,335 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,335 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:57,335 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:57,335 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2024-10-12 00:12:57,335 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:57,335 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:57,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,338 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,341 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,347 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,350 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,388 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:57,388 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:12:57,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:57,389 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:57,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-12 00:12:57,397 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 [2024-10-12 00:12:57,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:57,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:57,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:57,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:57,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:57,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:57,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:57,409 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:57,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-10-12 00:12:57,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:57,424 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:57,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-12 00:12:57,426 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 [2024-10-12 00:12:57,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:57,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:57,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:57,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:57,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:57,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:57,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:57,438 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:57,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:57,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:57,449 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:57,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-12 00:12:57,452 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 [2024-10-12 00:12:57,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:57,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:57,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:57,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:57,463 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:12:57,463 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:12:57,465 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:57,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:57,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:57,477 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:57,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-12 00:12:57,478 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 [2024-10-12 00:12:57,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:57,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:57,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:57,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:57,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:57,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:57,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:57,490 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:57,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-10-12 00:12:57,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:57,502 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:57,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-12 00:12:57,503 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 [2024-10-12 00:12:57,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:57,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:57,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:57,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:57,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:57,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:57,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:57,517 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:12:57,522 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:12:57,522 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-12 00:12:57,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:57,524 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:57,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-12 00:12:57,527 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:12:57,527 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:12:57,527 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:12:57,527 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-10-12 00:12:57,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-10-12 00:12:57,542 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:12:57,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:57,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:12:57,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:57,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:12:57,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:57,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:57,642 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:12:57,642 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2024-10-12 00:12:57,668 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 203 states and 269 transitions. Complement of second has 7 states. [2024-10-12 00:12:57,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-12 00:12:57,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2024-10-12 00:12:57,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-10-12 00:12:57,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 7 letters. [2024-10-12 00:12:57,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:57,669 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:12:57,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:57,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:12:57,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:57,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:12:57,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:57,735 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:12:57,736 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2024-10-12 00:12:57,757 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 315 states and 418 transitions. Complement of second has 9 states. [2024-10-12 00:12:57,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:12:57,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2024-10-12 00:12:57,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2024-10-12 00:12:57,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 17 letters. Loop has 7 letters. [2024-10-12 00:12:57,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:57,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 24 letters. Loop has 7 letters. [2024-10-12 00:12:57,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:57,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 17 letters. Loop has 14 letters. [2024-10-12 00:12:57,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:57,761 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 315 states and 418 transitions. [2024-10-12 00:12:57,766 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 48 [2024-10-12 00:12:57,768 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 315 states to 281 states and 370 transitions. [2024-10-12 00:12:57,768 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 90 [2024-10-12 00:12:57,768 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2024-10-12 00:12:57,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 281 states and 370 transitions. [2024-10-12 00:12:57,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:12:57,768 INFO L218 hiAutomatonCegarLoop]: Abstraction has 281 states and 370 transitions. [2024-10-12 00:12:57,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states and 370 transitions. [2024-10-12 00:12:57,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 204. [2024-10-12 00:12:57,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 204 states have (on average 1.3676470588235294) internal successors, (279), 203 states have internal predecessors, (279), 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) [2024-10-12 00:12:57,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 279 transitions. [2024-10-12 00:12:57,783 INFO L240 hiAutomatonCegarLoop]: Abstraction has 204 states and 279 transitions. [2024-10-12 00:12:57,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:12:57,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:12:57,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:12:57,784 INFO L87 Difference]: Start difference. First operand 204 states and 279 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:57,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:12:57,797 INFO L93 Difference]: Finished difference Result 184 states and 250 transitions. [2024-10-12 00:12:57,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 250 transitions. [2024-10-12 00:12:57,798 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 43 [2024-10-12 00:12:57,799 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 175 states and 241 transitions. [2024-10-12 00:12:57,799 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 61 [2024-10-12 00:12:57,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 61 [2024-10-12 00:12:57,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 241 transitions. [2024-10-12 00:12:57,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:12:57,799 INFO L218 hiAutomatonCegarLoop]: Abstraction has 175 states and 241 transitions. [2024-10-12 00:12:57,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 241 transitions. [2024-10-12 00:12:57,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-10-12 00:12:57,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 175 states have (on average 1.3771428571428572) internal successors, (241), 174 states have internal predecessors, (241), 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) [2024-10-12 00:12:57,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 241 transitions. [2024-10-12 00:12:57,810 INFO L240 hiAutomatonCegarLoop]: Abstraction has 175 states and 241 transitions. [2024-10-12 00:12:57,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:12:57,814 INFO L425 stractBuchiCegarLoop]: Abstraction has 175 states and 241 transitions. [2024-10-12 00:12:57,814 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-12 00:12:57,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 241 transitions. [2024-10-12 00:12:57,815 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 43 [2024-10-12 00:12:57,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:12:57,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:12:57,816 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-12 00:12:57,816 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-10-12 00:12:57,816 INFO L745 eck$LassoCheckResult]: Stem: 2340#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2341#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_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 2347#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2345#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2346#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2379#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2378#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 2376#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2370#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2371#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 2348#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 2349#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2467#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2465#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2464#L20-5 [2024-10-12 00:12:57,816 INFO L747 eck$LassoCheckResult]: Loop: 2464#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2463#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2461#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 2451#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2448#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2449#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 2358#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 2359#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2468#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2466#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2464#L20-5 [2024-10-12 00:12:57,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:57,816 INFO L85 PathProgramCache]: Analyzing trace with hash -805755733, now seen corresponding path program 3 times [2024-10-12 00:12:57,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:57,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823276024] [2024-10-12 00:12:57,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:57,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:57,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:57,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:57,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:57,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1260880250, now seen corresponding path program 1 times [2024-10-12 00:12:57,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:57,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594096369] [2024-10-12 00:12:57,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:57,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:57,841 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:57,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:57,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:57,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1433184592, now seen corresponding path program 4 times [2024-10-12 00:12:57,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:57,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27178023] [2024-10-12 00:12:57,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:57,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:57,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:57,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:57,942 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:57,942 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:57,942 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:57,942 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:57,942 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:12:57,942 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:57,942 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:57,942 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:57,942 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2024-10-12 00:12:57,942 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:57,942 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:57,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,948 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,958 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:57,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,005 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:58,005 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:12:58,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:58,009 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:58,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-12 00:12:58,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:58,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:58,033 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:58,033 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:12:58,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:58,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:58,048 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:58,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-12 00:12:58,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:58,052 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:58,072 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:58,072 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:12:58,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:58,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:58,085 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:58,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-12 00:12:58,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:58,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:58,100 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:58,100 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_9=0} Honda state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:12:58,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-10-12 00:12:58,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:58,116 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:58,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-10-12 00:12:58,120 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:58,120 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:58,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:58,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:58,147 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:58,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-10-12 00:12:58,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:12:58,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:58,224 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:12:58,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:58,229 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:58,229 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:58,229 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:58,229 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:58,229 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:12:58,230 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,230 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:58,230 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:58,230 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2024-10-12 00:12:58,230 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:58,230 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:58,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,254 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,255 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,329 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:58,330 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:12:58,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:58,332 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:58,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-10-12 00:12:58,335 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 [2024-10-12 00:12:58,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:58,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:58,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:58,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:58,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:58,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:58,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:58,354 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:58,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:58,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:58,371 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:58,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-10-12 00:12:58,372 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 [2024-10-12 00:12:58,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:58,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:58,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:58,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:58,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:58,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:58,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:58,387 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:58,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:58,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:58,403 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:58,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-10-12 00:12:58,405 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 [2024-10-12 00:12:58,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:58,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:58,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:58,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:58,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:12:58,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:12:58,421 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:12:58,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:58,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:58,442 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:58,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-10-12 00:12:58,444 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 [2024-10-12 00:12:58,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:58,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:58,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:58,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:58,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:58,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:58,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:58,467 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:12:58,469 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:12:58,469 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-12 00:12:58,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:58,471 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:58,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-10-12 00:12:58,473 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:12:58,473 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:12:58,473 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:12:58,473 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-12 00:12:58,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:58,489 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:12:58,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:58,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:12:58,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:58,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:12:58,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:58,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-12 00:12:58,577 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:12:58,578 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 175 states and 241 transitions. cyclomatic complexity: 85 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-10-12 00:12:58,594 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 175 states and 241 transitions. cyclomatic complexity: 85. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 440 states and 607 transitions. Complement of second has 6 states. [2024-10-12 00:12:58,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-12 00:12:58,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-10-12 00:12:58,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-10-12 00:12:58,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 14 letters. Loop has 10 letters. [2024-10-12 00:12:58,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:58,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 24 letters. Loop has 10 letters. [2024-10-12 00:12:58,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:58,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 14 letters. Loop has 20 letters. [2024-10-12 00:12:58,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:58,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 440 states and 607 transitions. [2024-10-12 00:12:58,608 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2024-10-12 00:12:58,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 440 states to 266 states and 367 transitions. [2024-10-12 00:12:58,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2024-10-12 00:12:58,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2024-10-12 00:12:58,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 266 states and 367 transitions. [2024-10-12 00:12:58,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:12:58,613 INFO L218 hiAutomatonCegarLoop]: Abstraction has 266 states and 367 transitions. [2024-10-12 00:12:58,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states and 367 transitions. [2024-10-12 00:12:58,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 120. [2024-10-12 00:12:58,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.4) internal successors, (168), 119 states have internal predecessors, (168), 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) [2024-10-12 00:12:58,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2024-10-12 00:12:58,625 INFO L240 hiAutomatonCegarLoop]: Abstraction has 120 states and 168 transitions. [2024-10-12 00:12:58,625 INFO L425 stractBuchiCegarLoop]: Abstraction has 120 states and 168 transitions. [2024-10-12 00:12:58,625 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-12 00:12:58,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 168 transitions. [2024-10-12 00:12:58,625 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-12 00:12:58,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:12:58,625 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:12:58,626 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-12 00:12:58,626 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:12:58,626 INFO L745 eck$LassoCheckResult]: Stem: 3049#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3050#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 3054#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3059#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 3041#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3042#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3079#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 3080#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3069#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3070#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 3089#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 3090#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 3153#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3151#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 3046#L20-5 [2024-10-12 00:12:58,626 INFO L747 eck$LassoCheckResult]: Loop: 3046#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3051#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3045#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 3046#L20-5 [2024-10-12 00:12:58,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:58,628 INFO L85 PathProgramCache]: Analyzing trace with hash -805755733, now seen corresponding path program 5 times [2024-10-12 00:12:58,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:58,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445577094] [2024-10-12 00:12:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:58,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:58,638 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:58,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:58,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:58,647 INFO L85 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 2 times [2024-10-12 00:12:58,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:58,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737919202] [2024-10-12 00:12:58,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:58,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:58,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:58,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:58,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:58,660 INFO L85 PathProgramCache]: Analyzing trace with hash 303194512, now seen corresponding path program 6 times [2024-10-12 00:12:58,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:58,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618728885] [2024-10-12 00:12:58,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:58,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:58,670 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:58,677 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:58,718 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:58,718 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:58,718 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:58,722 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:58,722 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:12:58,722 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,722 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:58,722 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:58,722 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2024-10-12 00:12:58,722 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:58,722 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:58,723 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,733 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,735 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,775 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:58,775 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:12:58,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:58,779 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:58,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-10-12 00:12:58,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:58,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:58,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:58,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:58,822 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:58,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-10-12 00:12:58,824 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:12:58,824 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:58,940 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:12:58,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-10-12 00:12:58,945 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:58,945 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:58,945 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:58,945 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:58,945 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:12:58,945 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:58,945 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:58,945 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:58,945 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2024-10-12 00:12:58,945 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:58,945 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:58,946 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:58,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:59,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-10-12 00:12:59,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-10-12 00:12:59,046 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:59,046 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:12:59,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:59,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:59,047 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:59,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-10-12 00:12:59,050 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 [2024-10-12 00:12:59,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:59,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:12:59,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:12:59,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:12:59,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:12:59,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:12:59,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:12:59,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:12:59,062 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:12:59,064 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:12:59,064 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:12:59,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:59,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:59,066 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:59,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-10-12 00:12:59,067 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:12:59,067 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:12:59,067 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:12:59,067 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [] [2024-10-12 00:12:59,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:59,078 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:12:59,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:59,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:12:59,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:59,107 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:12:59,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:59,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:59,138 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:12:59,138 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 120 states and 168 transitions. cyclomatic complexity: 60 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:59,161 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 120 states and 168 transitions. cyclomatic complexity: 60. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 152 states and 205 transitions. Complement of second has 9 states. [2024-10-12 00:12:59,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:12:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:59,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2024-10-12 00:12:59,162 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 14 letters. Loop has 3 letters. [2024-10-12 00:12:59,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:59,163 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:12:59,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:59,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:12:59,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:59,190 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:12:59,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:59,222 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:12:59,222 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 120 states and 168 transitions. cyclomatic complexity: 60 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:59,243 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 120 states and 168 transitions. cyclomatic complexity: 60. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 152 states and 205 transitions. Complement of second has 9 states. [2024-10-12 00:12:59,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:12:59,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2024-10-12 00:12:59,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 14 letters. Loop has 3 letters. [2024-10-12 00:12:59,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:59,244 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:12:59,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:59,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:12:59,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:59,272 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:12:59,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:59,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:12:59,303 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:12:59,303 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 120 states and 168 transitions. cyclomatic complexity: 60 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:59,327 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 120 states and 168 transitions. cyclomatic complexity: 60. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 224 states and 284 transitions. Complement of second has 8 states. [2024-10-12 00:12:59,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:12:59,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:12:59,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2024-10-12 00:12:59,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 14 letters. Loop has 3 letters. [2024-10-12 00:12:59,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:59,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 17 letters. Loop has 3 letters. [2024-10-12 00:12:59,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:59,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 14 letters. Loop has 6 letters. [2024-10-12 00:12:59,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:12:59,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 224 states and 284 transitions. [2024-10-12 00:12:59,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:12:59,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 224 states to 146 states and 187 transitions. [2024-10-12 00:12:59,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-12 00:12:59,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-12 00:12:59,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 187 transitions. [2024-10-12 00:12:59,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:12:59,335 INFO L218 hiAutomatonCegarLoop]: Abstraction has 146 states and 187 transitions. [2024-10-12 00:12:59,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states and 187 transitions. [2024-10-12 00:12:59,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 107. [2024-10-12 00:12:59,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.3364485981308412) internal successors, (143), 106 states have internal predecessors, (143), 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) [2024-10-12 00:12:59,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 143 transitions. [2024-10-12 00:12:59,337 INFO L240 hiAutomatonCegarLoop]: Abstraction has 107 states and 143 transitions. [2024-10-12 00:12:59,337 INFO L425 stractBuchiCegarLoop]: Abstraction has 107 states and 143 transitions. [2024-10-12 00:12:59,337 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-12 00:12:59,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 143 transitions. [2024-10-12 00:12:59,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:12:59,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:12:59,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:12:59,338 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1] [2024-10-12 00:12:59,338 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:12:59,342 INFO L745 eck$LassoCheckResult]: Stem: 3899#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3900#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_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 3905#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3902#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 3892#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3893#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3925#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 3926#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3919#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3929#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 3928#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 3888#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 3889#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3891#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 3989#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3988#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3897#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 3898#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3992#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3961#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 3962#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 3910#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 3911#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3990#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 3886#L19-2 [2024-10-12 00:12:59,342 INFO L747 eck$LassoCheckResult]: Loop: 3886#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 3887#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3890#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 3886#L19-2 [2024-10-12 00:12:59,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:59,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1433184570, now seen corresponding path program 1 times [2024-10-12 00:12:59,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:59,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802429084] [2024-10-12 00:12:59,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:59,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:59,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:59,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:59,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:59,363 INFO L85 PathProgramCache]: Analyzing trace with hash 66686, now seen corresponding path program 2 times [2024-10-12 00:12:59,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:59,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630499993] [2024-10-12 00:12:59,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:59,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:59,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:12:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:12:59,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:12:59,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:12:59,369 INFO L85 PathProgramCache]: Analyzing trace with hash 268401561, now seen corresponding path program 2 times [2024-10-12 00:12:59,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:12:59,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198031627] [2024-10-12 00:12:59,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:12:59,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:12:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:12:59,463 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 00:12:59,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:12:59,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198031627] [2024-10-12 00:12:59,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198031627] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:12:59,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507106504] [2024-10-12 00:12:59,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 00:12:59,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:12:59,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:59,467 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:12:59,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-10-12 00:12:59,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-12 00:12:59,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 00:12:59,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 00:12:59,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:12:59,562 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 00:12:59,562 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:12:59,643 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 00:12:59,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507106504] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:12:59,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:12:59,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-10-12 00:12:59,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926698028] [2024-10-12 00:12:59,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:12:59,666 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:59,667 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:59,667 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:59,667 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:59,667 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:12:59,667 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:59,667 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:59,667 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:59,667 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration8_Loop [2024-10-12 00:12:59,667 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:59,667 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:59,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:59,670 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:59,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:59,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:59,683 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:59,710 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:12:59,710 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:12:59,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:59,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:59,712 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:59,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-10-12 00:12:59,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:59,714 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:59,734 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:59,735 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:12:59,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2024-10-12 00:12:59,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:59,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:59,750 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:59,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-10-12 00:12:59,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:59,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:59,806 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:59,806 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:12:59,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-10-12 00:12:59,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:59,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:59,821 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:59,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-10-12 00:12:59,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:59,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:59,836 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:59,836 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:12:59,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-10-12 00:12:59,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:59,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:59,850 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:59,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-10-12 00:12:59,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:59,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:59,873 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:12:59,873 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:12:59,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:59,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:59,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:59,886 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:59,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-10-12 00:12:59,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:12:59,887 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:59,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2024-10-12 00:12:59,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:59,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:12:59,917 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:12:59,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-10-12 00:12:59,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:12:59,920 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:12:59,977 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:12:59,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2024-10-12 00:12:59,981 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:12:59,981 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:12:59,981 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:12:59,981 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:12:59,981 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:12:59,981 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:12:59,981 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:12:59,981 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:12:59,982 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration8_Loop [2024-10-12 00:12:59,982 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:12:59,982 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:12:59,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:59,986 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:59,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:59,990 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:12:59,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:00,038 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:13:00,038 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:13:00,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:00,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:00,040 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:00,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-10-12 00:13:00,042 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 [2024-10-12 00:13:00,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:13:00,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:13:00,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:13:00,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:13:00,067 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:13:00,067 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:13:00,073 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:13:00,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:00,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:00,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:00,095 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:00,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-10-12 00:13:00,101 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 [2024-10-12 00:13:00,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:13:00,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:13:00,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:13:00,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:13:00,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:13:00,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:13:00,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:13:00,124 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:13:00,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:00,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:00,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:00,149 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:00,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-10-12 00:13:00,153 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 [2024-10-12 00:13:00,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:13:00,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:13:00,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:13:00,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:13:00,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:13:00,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:13:00,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:13:00,177 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:13:00,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2024-10-12 00:13:00,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:00,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:00,204 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:00,209 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 [2024-10-12 00:13:00,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-10-12 00:13:00,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:13:00,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:13:00,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:13:00,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:13:00,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:13:00,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:13:00,227 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:13:00,232 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:13:00,234 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-12 00:13:00,234 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:13:00,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:00,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:00,240 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:00,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-10-12 00:13:00,242 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:13:00,242 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:13:00,242 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:13:00,242 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-10-12 00:13:00,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:00,263 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:13:00,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:13:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:00,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:13:00,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:00,336 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:13:00,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:00,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:13:00,362 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:13:00,365 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 107 states and 143 transitions. cyclomatic complexity: 46 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:13:00,385 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 107 states and 143 transitions. cyclomatic complexity: 46. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 335 states and 456 transitions. Complement of second has 7 states. [2024-10-12 00:13:00,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-12 00:13:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:13:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-10-12 00:13:00,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 24 letters. Loop has 3 letters. [2024-10-12 00:13:00,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:13:00,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 27 letters. Loop has 3 letters. [2024-10-12 00:13:00,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:13:00,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 24 letters. Loop has 6 letters. [2024-10-12 00:13:00,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:13:00,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 335 states and 456 transitions. [2024-10-12 00:13:00,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:13:00,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 335 states to 266 states and 350 transitions. [2024-10-12 00:13:00,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-12 00:13:00,392 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-12 00:13:00,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 266 states and 350 transitions. [2024-10-12 00:13:00,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:13:00,392 INFO L218 hiAutomatonCegarLoop]: Abstraction has 266 states and 350 transitions. [2024-10-12 00:13:00,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states and 350 transitions. [2024-10-12 00:13:00,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 204. [2024-10-12 00:13:00,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 204 states have (on average 1.3284313725490196) internal successors, (271), 203 states have internal predecessors, (271), 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) [2024-10-12 00:13:00,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 271 transitions. [2024-10-12 00:13:00,399 INFO L240 hiAutomatonCegarLoop]: Abstraction has 204 states and 271 transitions. [2024-10-12 00:13:00,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:13:00,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:13:00,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:13:00,403 INFO L87 Difference]: Start difference. First operand 204 states and 271 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-10-12 00:13:00,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:13:00,424 INFO L93 Difference]: Finished difference Result 187 states and 240 transitions. [2024-10-12 00:13:00,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 187 states and 240 transitions. [2024-10-12 00:13:00,425 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:13:00,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 187 states to 156 states and 206 transitions. [2024-10-12 00:13:00,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-12 00:13:00,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-12 00:13:00,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 206 transitions. [2024-10-12 00:13:00,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:13:00,427 INFO L218 hiAutomatonCegarLoop]: Abstraction has 156 states and 206 transitions. [2024-10-12 00:13:00,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states and 206 transitions. [2024-10-12 00:13:00,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 149. [2024-10-12 00:13:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.3355704697986577) internal successors, (199), 148 states have internal predecessors, (199), 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) [2024-10-12 00:13:00,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 199 transitions. [2024-10-12 00:13:00,433 INFO L240 hiAutomatonCegarLoop]: Abstraction has 149 states and 199 transitions. [2024-10-12 00:13:00,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 00:13:00,433 INFO L425 stractBuchiCegarLoop]: Abstraction has 149 states and 199 transitions. [2024-10-12 00:13:00,433 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-12 00:13:00,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 199 transitions. [2024-10-12 00:13:00,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:13:00,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:13:00,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:13:00,435 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1] [2024-10-12 00:13:00,435 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:13:00,435 INFO L745 eck$LassoCheckResult]: Stem: 4995#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4996#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_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 5003#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 4999#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 4989#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 4990#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 5062#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 5061#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 4997#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 4998#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 5125#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 4992#L20-1 assume !main_#t~short3#1; 5130#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 5128#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 5108#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 5107#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 5105#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 5007#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 5116#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 5114#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 5008#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 5112#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 5066#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 5067#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 5019#L20-1 assume !main_#t~short3#1; 5015#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 5016#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 5011#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 5012#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 5006#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 4983#L19-2 [2024-10-12 00:13:00,438 INFO L747 eck$LassoCheckResult]: Loop: 4983#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 4984#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 4987#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 4983#L19-2 [2024-10-12 00:13:00,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:13:00,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1144782292, now seen corresponding path program 1 times [2024-10-12 00:13:00,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:13:00,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020834117] [2024-10-12 00:13:00,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:13:00,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:13:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 39 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 00:13:00,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:13:00,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020834117] [2024-10-12 00:13:00,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020834117] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:13:00,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125428987] [2024-10-12 00:13:00,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:13:00,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:13:00,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:00,549 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:13:00,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-10-12 00:13:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:00,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 00:13:00,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:00,663 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 00:13:00,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:13:00,721 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 39 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 00:13:00,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125428987] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:13:00,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:13:00,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2024-10-12 00:13:00,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212418076] [2024-10-12 00:13:00,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:13:00,721 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-12 00:13:00,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:13:00,722 INFO L85 PathProgramCache]: Analyzing trace with hash 66686, now seen corresponding path program 3 times [2024-10-12 00:13:00,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:13:00,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598443390] [2024-10-12 00:13:00,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:13:00,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:13:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:13:00,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:13:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:13:00,736 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:13:00,756 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:13:00,756 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:13:00,756 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:13:00,756 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:13:00,756 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:13:00,756 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:00,756 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:13:00,756 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:13:00,757 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration9_Loop [2024-10-12 00:13:00,757 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:13:00,757 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:13:00,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:00,759 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:00,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:00,768 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:00,773 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:00,806 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:13:00,807 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:13:00,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:00,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:00,812 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:00,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-10-12 00:13:00,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:13:00,817 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:13:00,849 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:13:00,850 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:13:00,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2024-10-12 00:13:00,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:00,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:00,872 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:00,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-10-12 00:13:00,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:13:00,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:13:00,896 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:13:00,897 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:13:00,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:00,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:00,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:00,913 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:00,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-10-12 00:13:00,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:13:00,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:13:00,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:00,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:00,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:00,938 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:00,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-10-12 00:13:00,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:13:00,939 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:13:00,997 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:13:01,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:01,002 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:13:01,002 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:13:01,002 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:13:01,002 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:13:01,002 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:13:01,002 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:01,002 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:13:01,002 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:13:01,002 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration9_Loop [2024-10-12 00:13:01,002 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:13:01,002 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:13:01,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,029 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:01,041 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:01,082 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:13:01,082 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:13:01,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:01,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:01,088 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:01,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-10-12 00:13:01,090 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 [2024-10-12 00:13:01,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:13:01,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:13:01,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:13:01,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:13:01,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:13:01,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:13:01,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:13:01,109 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:13:01,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:01,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:01,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:01,121 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:01,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-10-12 00:13:01,122 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 [2024-10-12 00:13:01,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:13:01,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:13:01,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:13:01,133 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:13:01,134 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:13:01,134 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:13:01,137 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:13:01,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:01,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:01,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:01,149 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:01,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-10-12 00:13:01,151 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 [2024-10-12 00:13:01,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:13:01,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:13:01,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:13:01,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:13:01,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:13:01,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:13:01,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:13:01,163 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:13:01,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:01,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:01,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:01,175 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:01,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-10-12 00:13:01,176 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 [2024-10-12 00:13:01,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:13:01,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:13:01,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:13:01,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:13:01,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:13:01,187 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:13:01,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:13:01,189 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:13:01,190 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-12 00:13:01,190 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:13:01,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:01,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:01,192 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:01,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-10-12 00:13:01,193 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:13:01,193 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:13:01,193 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:13:01,194 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-10-12 00:13:01,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:01,205 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:13:01,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:13:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:01,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:13:01,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:01,279 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:13:01,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:01,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:13:01,302 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:13:01,302 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 149 states and 199 transitions. cyclomatic complexity: 65 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-10-12 00:13:01,327 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 149 states and 199 transitions. cyclomatic complexity: 65. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 197 states and 258 transitions. Complement of second has 7 states. [2024-10-12 00:13:01,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-12 00:13:01,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-10-12 00:13:01,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-10-12 00:13:01,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 30 letters. Loop has 3 letters. [2024-10-12 00:13:01,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:13:01,328 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:13:01,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:13:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:01,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:13:01,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:01,405 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:13:01,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:01,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:13:01,432 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:13:01,432 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 149 states and 199 transitions. cyclomatic complexity: 65 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-10-12 00:13:01,468 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 149 states and 199 transitions. cyclomatic complexity: 65. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 271 states and 353 transitions. Complement of second has 9 states. [2024-10-12 00:13:01,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:13:01,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-10-12 00:13:01,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2024-10-12 00:13:01,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 30 letters. Loop has 3 letters. [2024-10-12 00:13:01,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:13:01,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 33 letters. Loop has 3 letters. [2024-10-12 00:13:01,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:13:01,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 30 letters. Loop has 6 letters. [2024-10-12 00:13:01,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:13:01,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 271 states and 353 transitions. [2024-10-12 00:13:01,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:13:01,476 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 271 states to 263 states and 339 transitions. [2024-10-12 00:13:01,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-12 00:13:01,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-12 00:13:01,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 263 states and 339 transitions. [2024-10-12 00:13:01,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:13:01,480 INFO L218 hiAutomatonCegarLoop]: Abstraction has 263 states and 339 transitions. [2024-10-12 00:13:01,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states and 339 transitions. [2024-10-12 00:13:01,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 227. [2024-10-12 00:13:01,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 227 states have (on average 1.3127753303964758) internal successors, (298), 226 states have internal predecessors, (298), 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) [2024-10-12 00:13:01,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 298 transitions. [2024-10-12 00:13:01,488 INFO L240 hiAutomatonCegarLoop]: Abstraction has 227 states and 298 transitions. [2024-10-12 00:13:01,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:13:01,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 00:13:01,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-12 00:13:01,489 INFO L87 Difference]: Start difference. First operand 227 states and 298 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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) [2024-10-12 00:13:01,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:13:01,575 INFO L93 Difference]: Finished difference Result 328 states and 406 transitions. [2024-10-12 00:13:01,575 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 328 states and 406 transitions. [2024-10-12 00:13:01,576 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:13:01,581 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 328 states to 328 states and 406 transitions. [2024-10-12 00:13:01,581 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-12 00:13:01,581 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-12 00:13:01,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 328 states and 406 transitions. [2024-10-12 00:13:01,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:13:01,582 INFO L218 hiAutomatonCegarLoop]: Abstraction has 328 states and 406 transitions. [2024-10-12 00:13:01,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states and 406 transitions. [2024-10-12 00:13:01,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 226. [2024-10-12 00:13:01,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 226 states have (on average 1.2654867256637168) internal successors, (286), 225 states have internal predecessors, (286), 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) [2024-10-12 00:13:01,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 286 transitions. [2024-10-12 00:13:01,590 INFO L240 hiAutomatonCegarLoop]: Abstraction has 226 states and 286 transitions. [2024-10-12 00:13:01,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 00:13:01,591 INFO L425 stractBuchiCegarLoop]: Abstraction has 226 states and 286 transitions. [2024-10-12 00:13:01,591 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-10-12 00:13:01,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 226 states and 286 transitions. [2024-10-12 00:13:01,592 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:13:01,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:13:01,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:13:01,597 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 4, 4, 3, 2, 2, 2, 2, 1, 1] [2024-10-12 00:13:01,597 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:13:01,597 INFO L745 eck$LassoCheckResult]: Stem: 6589#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 6590#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_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 6578#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 6579#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 6582#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 6583#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 6707#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 6708#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 6760#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 6761#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 6759#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 6757#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 6758#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 6735#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 6659#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 6656#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 6651#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 6652#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 6644#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 6623#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 6624#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 6666#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 6665#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 6663#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 6608#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 6609#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 6607#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 6605#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 6603#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 6602#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 6601#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 6599#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 6600#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 6574#L19-2 [2024-10-12 00:13:01,598 INFO L747 eck$LassoCheckResult]: Loop: 6574#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 6575#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 6591#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 6574#L19-2 [2024-10-12 00:13:01,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:13:01,599 INFO L85 PathProgramCache]: Analyzing trace with hash -409371555, now seen corresponding path program 3 times [2024-10-12 00:13:01,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:13:01,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526605755] [2024-10-12 00:13:01,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:13:01,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:13:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:13:01,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:13:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:13:01,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:13:01,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:13:01,620 INFO L85 PathProgramCache]: Analyzing trace with hash 66686, now seen corresponding path program 4 times [2024-10-12 00:13:01,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:13:01,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734534557] [2024-10-12 00:13:01,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:13:01,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:13:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:13:01,626 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:13:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:13:01,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:13:01,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:13:01,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2119162530, now seen corresponding path program 4 times [2024-10-12 00:13:01,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:13:01,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624250225] [2024-10-12 00:13:01,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:13:01,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:13:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:13:01,641 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:13:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:13:01,654 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:13:01,677 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:13:01,680 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:13:01,680 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:13:01,680 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:13:01,680 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:13:01,680 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:01,680 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:13:01,680 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:13:01,680 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration10_Loop [2024-10-12 00:13:01,680 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:13:01,681 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:13:01,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,690 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,737 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:13:01,737 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:13:01,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:01,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:01,741 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:01,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2024-10-12 00:13:01,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:13:01,743 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:13:01,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2024-10-12 00:13:01,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:01,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:01,789 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:01,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2024-10-12 00:13:01,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:13:01,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:13:01,897 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:13:01,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:01,901 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:13:01,902 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:13:01,902 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:13:01,902 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:13:01,902 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:13:01,902 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:01,902 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:13:01,902 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:13:01,902 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration10_Loop [2024-10-12 00:13:01,902 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:13:01,902 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:13:01,905 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,910 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,911 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,915 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:13:01,940 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:13:01,941 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:13:01,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:01,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:01,942 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:01,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2024-10-12 00:13:01,944 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 [2024-10-12 00:13:01,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:13:01,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:13:01,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:13:01,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:13:01,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:13:01,956 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:13:01,956 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:13:01,957 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:13:01,960 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:13:01,961 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-12 00:13:01,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:13:01,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:13:01,962 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:13:01,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2024-10-12 00:13:01,964 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:13:01,964 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:13:01,964 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:13:01,964 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-10-12 00:13:01,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:01,974 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:13:01,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:13:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:01,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:13:01,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:02,028 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:13:02,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:02,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:13:02,051 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:13:02,051 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 226 states and 286 transitions. cyclomatic complexity: 80 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:13:02,074 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 226 states and 286 transitions. cyclomatic complexity: 80. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 299 states and 376 transitions. Complement of second has 7 states. [2024-10-12 00:13:02,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-12 00:13:02,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:13:02,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2024-10-12 00:13:02,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 33 letters. Loop has 3 letters. [2024-10-12 00:13:02,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:13:02,077 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:13:02,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:13:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:02,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:13:02,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:02,157 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:13:02,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:02,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:13:02,183 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:13:02,184 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 226 states and 286 transitions. cyclomatic complexity: 80 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:13:02,212 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 226 states and 286 transitions. cyclomatic complexity: 80. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 352 states and 435 transitions. Complement of second has 9 states. [2024-10-12 00:13:02,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:13:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:13:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2024-10-12 00:13:02,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 33 letters. Loop has 3 letters. [2024-10-12 00:13:02,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:13:02,213 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:13:02,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:13:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:02,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:13:02,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:13:02,288 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:13:02,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:13:02,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:13:02,310 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:13:02,310 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 226 states and 286 transitions. cyclomatic complexity: 80 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:13:02,331 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 226 states and 286 transitions. cyclomatic complexity: 80. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 380 states and 487 transitions. Complement of second has 8 states. [2024-10-12 00:13:02,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-12 00:13:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:13:02,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-10-12 00:13:02,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 33 letters. Loop has 3 letters. [2024-10-12 00:13:02,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:13:02,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 36 letters. Loop has 3 letters. [2024-10-12 00:13:02,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:13:02,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 33 letters. Loop has 6 letters. [2024-10-12 00:13:02,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:13:02,335 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 380 states and 487 transitions. [2024-10-12 00:13:02,337 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:13:02,337 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 380 states to 0 states and 0 transitions. [2024-10-12 00:13:02,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-12 00:13:02,337 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-12 00:13:02,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-12 00:13:02,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:13:02,337 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:13:02,337 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:13:02,337 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:13:02,337 INFO L332 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-10-12 00:13:02,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-12 00:13:02,338 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:13:02,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-12 00:13:02,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 12:13:02 BoogieIcfgContainer [2024-10-12 00:13:02,356 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-12 00:13:02,357 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:13:02,357 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:13:02,357 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:13:02,357 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:12:52" (3/4) ... [2024-10-12 00:13:02,359 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 00:13:02,360 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:13:02,363 INFO L158 Benchmark]: Toolchain (without parser) took 9888.98ms. Allocated memory was 163.6MB in the beginning and 320.9MB in the end (delta: 157.3MB). Free memory was 89.8MB in the beginning and 188.9MB in the end (delta: -99.1MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2024-10-12 00:13:02,364 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 163.6MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:13:02,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.91ms. Allocated memory is still 163.6MB. Free memory was 89.8MB in the beginning and 78.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 00:13:02,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.81ms. Allocated memory is still 163.6MB. Free memory was 78.7MB in the beginning and 77.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:13:02,364 INFO L158 Benchmark]: Boogie Preprocessor took 24.96ms. Allocated memory is still 163.6MB. Free memory was 77.5MB in the beginning and 76.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:13:02,364 INFO L158 Benchmark]: RCFGBuilder took 221.28ms. Allocated memory is still 163.6MB. Free memory was 76.0MB in the beginning and 66.5MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-12 00:13:02,364 INFO L158 Benchmark]: BuchiAutomizer took 9401.13ms. Allocated memory was 163.6MB in the beginning and 320.9MB in the end (delta: 157.3MB). Free memory was 66.2MB in the beginning and 190.0MB in the end (delta: -123.8MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2024-10-12 00:13:02,364 INFO L158 Benchmark]: Witness Printer took 6.34ms. Allocated memory is still 320.9MB. Free memory was 190.0MB in the beginning and 188.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:13:02,366 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 163.6MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.91ms. Allocated memory is still 163.6MB. Free memory was 89.8MB in the beginning and 78.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.81ms. Allocated memory is still 163.6MB. Free memory was 78.7MB in the beginning and 77.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.96ms. Allocated memory is still 163.6MB. Free memory was 77.5MB in the beginning and 76.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 221.28ms. Allocated memory is still 163.6MB. Free memory was 76.0MB in the beginning and 66.5MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 9401.13ms. Allocated memory was 163.6MB in the beginning and 320.9MB in the end (delta: 157.3MB). Free memory was 66.2MB in the beginning and 190.0MB in the end (delta: -123.8MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. * Witness Printer took 6.34ms. Allocated memory is still 320.9MB. Free memory was 190.0MB in the beginning and 188.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 15 terminating modules (5 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (((long) 2 * y) + 1) and consists of 4 locations. One deterministic module has affine ranking function ((((long) 2 * m) + ((long) -2 * y)) + 1) and consists of 6 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function ((((long) 2 * m) + ((long) -2 * y)) + 1) and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 5 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.3s and 11 iterations. TraceHistogramMax:6. Analysis of lassos took 6.7s. Construction of modules took 0.3s. Büchi inclusion checks took 2.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 14. Automata minimization 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 520 StatesRemovedByMinimization, 12 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 [6, 2, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 420 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 404 mSDsluCounter, 523 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 243 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 412 IncrementalHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 280 mSDtfsCounter, 412 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT2 SILN0 SILU0 SILI0 SILT3 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax182 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-12 00:13:02,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2024-10-12 00:13:02,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2024-10-12 00:13:02,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:02,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-10-12 00:13:03,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-12 00:13:03,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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