./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB --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 0.3.0-dev-d790fec [2024-11-28 05:22:31,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:22:31,850 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 05:22:31,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:22:31,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:22:31,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:22:31,900 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:22:31,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:22:31,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:22:31,900 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:22:31,901 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:22:31,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:22:31,901 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:22:31,902 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 05:22:31,902 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 05:22:31,902 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 05:22:31,902 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 05:22:31,903 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 05:22:31,903 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 05:22:31,903 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:22:31,903 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 05:22:31,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:22:31,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:22:31,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 05:22:31,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 05:22:31,904 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 05:22:31,904 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:22:31,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:22:31,904 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 05:22:31,904 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:22:31,904 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:22:31,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:22:31,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:22:31,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:22:31,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 05:22:31,907 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 05:22:31,907 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB 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 [2024-11-28 05:22:32,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:22:32,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:22:32,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:22:32,249 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:22:32,249 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:22:32,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-11-28 05:22:35,297 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/data/0bdf6e0dd/1a6c75785acb43fb8a53d5b63bc031ac/FLAG3c445b1a8 [2024-11-28 05:22:35,613 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:22:35,617 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-11-28 05:22:35,637 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/data/0bdf6e0dd/1a6c75785acb43fb8a53d5b63bc031ac/FLAG3c445b1a8 [2024-11-28 05:22:35,666 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/data/0bdf6e0dd/1a6c75785acb43fb8a53d5b63bc031ac [2024-11-28 05:22:35,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:22:35,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:22:35,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:22:35,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:22:35,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:22:35,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e34b7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35, skipping insertion in model container [2024-11-28 05:22:35,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,710 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:22:35,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:22:35,880 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:22:35,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:22:35,909 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:22:35,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35 WrapperNode [2024-11-28 05:22:35,910 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:22:35,911 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:22:35,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:22:35,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:22:35,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,949 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2024-11-28 05:22:35,950 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:22:35,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:22:35,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:22:35,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:22:35,960 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,969 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 05:22:35,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,969 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,971 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,972 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:22:35,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:22:35,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:22:35,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:22:35,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (1/1) ... [2024-11-28 05:22:35,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:36,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:36,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:36,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 05:22:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:22:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:22:36,161 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:22:36,163 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:22:36,272 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-28 05:22:36,274 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:22:36,284 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:22:36,284 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:22:36,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:22:36 BoogieIcfgContainer [2024-11-28 05:22:36,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:22:36,287 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 05:22:36,287 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 05:22:36,294 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 05:22:36,295 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:22:36,295 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 05:22:35" (1/3) ... [2024-11-28 05:22:36,296 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ef1ec60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 05:22:36, skipping insertion in model container [2024-11-28 05:22:36,297 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:22:36,297 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:35" (2/3) ... [2024-11-28 05:22:36,298 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ef1ec60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 05:22:36, skipping insertion in model container [2024-11-28 05:22:36,298 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:22:36,298 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:22:36" (3/3) ... [2024-11-28 05:22:36,299 INFO L363 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-11-28 05:22:36,383 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 05:22:36,384 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 05:22:36,384 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 05:22:36,384 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 05:22:36,384 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 05:22:36,385 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 05:22:36,385 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 05:22:36,385 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 05:22:36,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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) [2024-11-28 05:22:36,410 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-28 05:22:36,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:22:36,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:22:36,417 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:22:36,417 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 05:22:36,418 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 05:22:36,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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) [2024-11-28 05:22:36,421 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-28 05:22:36,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:22:36,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:22:36,424 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:22:36,424 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 05:22:36,432 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1;" [2024-11-28 05:22:36,433 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0;" "havoc main_#t~nondet1#1;" "assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1;" "main_~y~0#1 := main_~y~0#1 - 1;" [2024-11-28 05:22:36,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:36,442 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 05:22:36,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:36,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027860948] [2024-11-28 05:22:36,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:36,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:36,546 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:22:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:36,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:22:36,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:36,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1174599, now seen corresponding path program 1 times [2024-11-28 05:22:36,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:36,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443908944] [2024-11-28 05:22:36,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:36,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:36,594 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:22:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:36,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:22:36,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:36,607 INFO L85 PathProgramCache]: Analyzing trace with hash 889601801, now seen corresponding path program 1 times [2024-11-28 05:22:36,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:36,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267458467] [2024-11-28 05:22:36,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:36,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:36,618 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:22:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:36,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:22:36,724 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:22:36,725 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:22:36,725 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:22:36,725 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:22:36,725 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:22:36,727 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:36,727 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:22:36,727 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:22:36,728 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2024-11-28 05:22:36,728 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:22:36,729 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:22:36,746 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:36,762 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:36,774 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:36,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:36,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:36,897 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:22:36,897 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:22:36,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:36,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:36,905 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:36,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-28 05:22:36,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:36,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:36,937 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:22:36,937 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: [] [2024-11-28 05:22:36,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-28 05:22:36,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:36,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:36,950 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:36,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 05:22:36,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:36,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:36,979 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:22:36,979 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: [] [2024-11-28 05:22:36,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-28 05:22:36,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:36,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:36,991 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:36,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 05:22:36,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:36,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:37,020 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:22:37,020 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: [] [2024-11-28 05:22:37,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:37,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:37,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:37,033 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:37,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:37,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:37,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 05:22:37,059 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:22:37,059 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: [] [2024-11-28 05:22:37,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:37,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:37,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:37,073 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:37,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 05:22:37,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:37,078 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:37,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:37,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:37,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:37,113 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:37,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 05:22:37,119 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:22:37,119 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:37,159 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:22:37,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:37,163 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:22:37,163 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:22:37,163 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:22:37,163 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:22:37,164 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:22:37,164 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:37,164 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:22:37,164 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:22:37,165 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2024-11-28 05:22:37,165 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:22:37,165 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:22:37,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:37,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:37,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:37,189 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:37,196 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:37,278 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:22:37,283 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:22:37,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:37,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:37,286 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:37,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 05:22:37,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:37,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:37,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:37,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:37,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:37,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 05:22:37,315 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 05:22:37,325 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:22:37,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:37,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:37,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:37,337 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:37,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 05:22:37,346 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:37,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:37,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:37,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:37,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:37,364 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 05:22:37,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 05:22:37,371 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:22:37,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-28 05:22:37,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:37,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:37,394 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:37,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 05:22:37,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:37,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:37,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:22:37,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:37,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:37,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:37,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:22:37,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:22:37,418 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:22:37,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:37,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:37,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:37,426 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:37,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-28 05:22:37,429 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:37,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:37,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:22:37,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:37,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:37,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:37,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:22:37,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:22:37,447 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:22:37,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-28 05:22:37,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:37,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:37,460 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:37,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 05:22:37,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:37,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:37,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:22:37,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:37,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:37,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:37,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:22:37,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:22:37,499 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:22:37,503 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 05:22:37,507 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 05:22:37,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:37,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:37,513 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:37,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-28 05:22:37,515 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:22:37,516 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:22:37,516 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:22:37,516 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 [] [2024-11-28 05:22:37,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:37,536 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:22:37,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:37,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:22:37,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:37,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:22:37,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:37,692 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 05:22:37,695 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:37,773 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 47 states and 68 transitions. Complement of second has 6 states. [2024-11-28 05:22:37,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 05:22:37,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:37,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2024-11-28 05:22:37,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-28 05:22:37,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:37,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-28 05:22:37,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:37,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 2 letters. Loop has 8 letters. [2024-11-28 05:22:37,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:37,795 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 68 transitions. [2024-11-28 05:22:37,798 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-28 05:22:37,803 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 26 states and 35 transitions. [2024-11-28 05:22:37,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-28 05:22:37,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-28 05:22:37,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 35 transitions. [2024-11-28 05:22:37,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:22:37,809 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 35 transitions. [2024-11-28 05:22:37,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 35 transitions. [2024-11-28 05:22:37,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2024-11-28 05:22:37,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.36) internal successors, (34), 24 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:37,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2024-11-28 05:22:37,842 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 34 transitions. [2024-11-28 05:22:37,843 INFO L425 stractBuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2024-11-28 05:22:37,843 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 05:22:37,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 34 transitions. [2024-11-28 05:22:37,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-28 05:22:37,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:22:37,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:22:37,846 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:37,846 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 05:22:37,846 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1;" "assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0;" "havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume !main_#t~short3#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" [2024-11-28 05:22:37,846 INFO L749 eck$LassoCheckResult]: Loop: "main_~y~0#1 := 1 + main_~y~0#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" [2024-11-28 05:22:37,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:37,847 INFO L85 PathProgramCache]: Analyzing trace with hash 208134255, now seen corresponding path program 1 times [2024-11-28 05:22:37,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:37,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762819746] [2024-11-28 05:22:37,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:37,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:37,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:22:37,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762819746] [2024-11-28 05:22:37,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762819746] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:22:37,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970104002] [2024-11-28 05:22:37,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:37,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:22:37,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:37,924 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:22:37,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 05:22:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:37,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:22:37,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:37,957 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:22:37,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970104002] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:22:37,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:22:37,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-28 05:22:37,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377084578] [2024-11-28 05:22:37,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:22:37,968 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 05:22:37,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:37,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1895802, now seen corresponding path program 1 times [2024-11-28 05:22:37,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:37,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014993676] [2024-11-28 05:22:37,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:37,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:37,977 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:22:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:37,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:22:38,073 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:22:38,073 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:22:38,073 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:22:38,073 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:22:38,073 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:22:38,074 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:38,074 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:22:38,074 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:22:38,074 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2024-11-28 05:22:38,074 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:22:38,074 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:22:38,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:38,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:38,088 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:38,097 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:38,101 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:38,168 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:22:38,170 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:22:38,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:38,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:38,174 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:38,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 05:22:38,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:38,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:38,200 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:22:38,201 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: [] [2024-11-28 05:22:38,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-28 05:22:38,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:38,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:38,208 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:38,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 05:22:38,211 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:38,211 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:38,233 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:22:38,233 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: [] [2024-11-28 05:22:38,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:38,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:38,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:38,245 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:38,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 05:22:38,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:38,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:38,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:38,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:38,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:38,273 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:38,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-28 05:22:38,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:22:38,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:38,377 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:22:38,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:38,381 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:22:38,381 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:22:38,381 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:22:38,381 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:22:38,381 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:22:38,381 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:38,381 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:22:38,381 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:22:38,381 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2024-11-28 05:22:38,381 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:22:38,381 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:22:38,383 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:38,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:38,396 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:38,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:38,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:38,468 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:22:38,468 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:22:38,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:38,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:38,471 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:38,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-28 05:22:38,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:38,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:38,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:38,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:38,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:38,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 05:22:38,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 05:22:38,500 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:22:38,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-28 05:22:38,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:38,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:38,509 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:38,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-28 05:22:38,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:38,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:38,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:22:38,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:38,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:38,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:38,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:22:38,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:22:38,529 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:22:38,536 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 05:22:38,536 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 05:22:38,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:38,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:38,541 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:38,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-28 05:22:38,543 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:22:38,543 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:22:38,543 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:22:38,543 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2024-11-28 05:22:38,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-28 05:22:38,551 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:22:38,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:38,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:22:38,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:38,621 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:22:38,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:38,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:38,763 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-28 05:22:38,764 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:38,871 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 68 states and 95 transitions. Complement of second has 10 states. [2024-11-28 05:22:38,871 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 [2024-11-28 05:22:38,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:38,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 49 transitions. [2024-11-28 05:22:38,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 49 transitions. Stem has 8 letters. Loop has 4 letters. [2024-11-28 05:22:38,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:38,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 49 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-28 05:22:38,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:38,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 49 transitions. Stem has 8 letters. Loop has 8 letters. [2024-11-28 05:22:38,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:38,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 95 transitions. [2024-11-28 05:22:38,876 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-11-28 05:22:38,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 57 states and 76 transitions. [2024-11-28 05:22:38,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2024-11-28 05:22:38,878 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2024-11-28 05:22:38,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 76 transitions. [2024-11-28 05:22:38,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:22:38,878 INFO L218 hiAutomatonCegarLoop]: Abstraction has 57 states and 76 transitions. [2024-11-28 05:22:38,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 76 transitions. [2024-11-28 05:22:38,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 52. [2024-11-28 05:22:38,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 51 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:38,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2024-11-28 05:22:38,888 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 71 transitions. [2024-11-28 05:22:38,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:22:38,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:22:38,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:22:38,891 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:38,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:38,908 INFO L93 Difference]: Finished difference Result 56 states and 70 transitions. [2024-11-28 05:22:38,908 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 70 transitions. [2024-11-28 05:22:38,910 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2024-11-28 05:22:38,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 54 states and 68 transitions. [2024-11-28 05:22:38,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2024-11-28 05:22:38,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2024-11-28 05:22:38,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 68 transitions. [2024-11-28 05:22:38,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:22:38,913 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 68 transitions. [2024-11-28 05:22:38,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 68 transitions. [2024-11-28 05:22:38,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2024-11-28 05:22:38,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 51 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:38,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2024-11-28 05:22:38,922 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 66 transitions. [2024-11-28 05:22:38,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:22:38,924 INFO L425 stractBuchiCegarLoop]: Abstraction has 52 states and 66 transitions. [2024-11-28 05:22:38,924 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 05:22:38,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 66 transitions. [2024-11-28 05:22:38,925 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2024-11-28 05:22:38,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:22:38,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:22:38,926 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:38,926 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:38,926 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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;" "assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0;" "havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~y~0#1 := 1 + main_~y~0#1;" [2024-11-28 05:22:38,926 INFO L749 eck$LassoCheckResult]: Loop: "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume !main_#t~short3#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0;" "havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~y~0#1 := 1 + main_~y~0#1;" [2024-11-28 05:22:38,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:38,927 INFO L85 PathProgramCache]: Analyzing trace with hash -2137774577, now seen corresponding path program 1 times [2024-11-28 05:22:38,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:38,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955983444] [2024-11-28 05:22:38,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:38,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:38,938 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:22:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:38,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:22:38,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:38,945 INFO L85 PathProgramCache]: Analyzing trace with hash -401257866, now seen corresponding path program 1 times [2024-11-28 05:22:38,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:38,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160269159] [2024-11-28 05:22:38,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:38,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:38,955 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:22:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:38,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:22:38,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:38,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1463104636, now seen corresponding path program 1 times [2024-11-28 05:22:38,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:38,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636911098] [2024-11-28 05:22:38,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:38,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:39,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:22:39,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636911098] [2024-11-28 05:22:39,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636911098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:22:39,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775705773] [2024-11-28 05:22:39,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:39,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:22:39,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:39,185 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:22:39,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 05:22:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:39,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:22:39,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:39,389 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:22:39,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775705773] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:22:39,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:22:39,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-28 05:22:39,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728913497] [2024-11-28 05:22:39,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:22:39,662 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:22:39,663 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:22:39,663 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:22:39,663 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:22:39,663 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:22:39,663 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:39,663 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:22:39,663 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:22:39,663 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2024-11-28 05:22:39,663 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:22:39,663 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:22:39,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,674 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,688 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,776 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:22:39,779 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:22:39,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:39,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:39,785 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:39,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-28 05:22:39,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:39,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:39,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:39,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:39,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:39,812 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:39,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-28 05:22:39,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:22:39,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:39,865 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:22:39,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-28 05:22:39,868 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:22:39,868 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:22:39,868 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:22:39,868 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:22:39,868 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:22:39,868 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:39,869 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:22:39,869 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:22:39,869 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2024-11-28 05:22:39,869 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:22:39,869 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:22:39,870 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,891 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,897 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:39,984 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:22:39,984 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:22:39,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:39,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:39,987 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:39,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-28 05:22:39,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:40,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:40,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:22:40,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:40,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:40,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:40,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:22:40,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:22:40,008 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:22:40,012 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 05:22:40,012 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 05:22:40,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:40,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:40,015 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:40,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-28 05:22:40,019 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:22:40,019 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:22:40,019 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:22:40,019 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-28 05:22:40,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-28 05:22:40,030 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:22:40,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:40,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:22:40,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:40,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:22:40,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:40,172 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 [2024-11-28 05:22:40,173 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 66 transitions. cyclomatic complexity: 18 Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:40,202 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 66 transitions. cyclomatic complexity: 18. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 96 states and 122 transitions. Complement of second has 6 states. [2024-11-28 05:22:40,204 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 [2024-11-28 05:22:40,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:40,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2024-11-28 05:22:40,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 9 letters. Loop has 12 letters. [2024-11-28 05:22:40,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:40,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 21 letters. Loop has 12 letters. [2024-11-28 05:22:40,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:40,207 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 9 letters. Loop has 24 letters. [2024-11-28 05:22:40,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:40,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 122 transitions. [2024-11-28 05:22:40,213 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-28 05:22:40,214 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 69 states and 87 transitions. [2024-11-28 05:22:40,214 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-11-28 05:22:40,214 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-11-28 05:22:40,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 87 transitions. [2024-11-28 05:22:40,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:22:40,215 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 87 transitions. [2024-11-28 05:22:40,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 87 transitions. [2024-11-28 05:22:40,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2024-11-28 05:22:40,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 66 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:40,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 84 transitions. [2024-11-28 05:22:40,224 INFO L240 hiAutomatonCegarLoop]: Abstraction has 67 states and 84 transitions. [2024-11-28 05:22:40,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:22:40,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:22:40,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:22:40,226 INFO L87 Difference]: Start difference. First operand 67 states and 84 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:40,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:40,539 INFO L93 Difference]: Finished difference Result 151 states and 181 transitions. [2024-11-28 05:22:40,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 151 states and 181 transitions. [2024-11-28 05:22:40,543 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2024-11-28 05:22:40,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 151 states to 122 states and 148 transitions. [2024-11-28 05:22:40,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-28 05:22:40,545 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-11-28 05:22:40,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 148 transitions. [2024-11-28 05:22:40,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:22:40,545 INFO L218 hiAutomatonCegarLoop]: Abstraction has 122 states and 148 transitions. [2024-11-28 05:22:40,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states and 148 transitions. [2024-11-28 05:22:40,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 85. [2024-11-28 05:22:40,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 85 states have (on average 1.2470588235294118) internal successors, (106), 84 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 106 transitions. [2024-11-28 05:22:40,552 INFO L240 hiAutomatonCegarLoop]: Abstraction has 85 states and 106 transitions. [2024-11-28 05:22:40,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 05:22:40,553 INFO L425 stractBuchiCegarLoop]: Abstraction has 85 states and 106 transitions. [2024-11-28 05:22:40,553 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 05:22:40,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 106 transitions. [2024-11-28 05:22:40,555 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-28 05:22:40,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:22:40,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:22:40,555 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:40,555 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 05:22:40,556 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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;" "assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0;" "havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~y~0#1 := 1 + main_~y~0#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0;" "havoc main_#t~nondet1#1;" [2024-11-28 05:22:40,556 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0;" "havoc main_#t~nondet1#1;" [2024-11-28 05:22:40,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:40,556 INFO L85 PathProgramCache]: Analyzing trace with hash 136279092, now seen corresponding path program 1 times [2024-11-28 05:22:40,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:40,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925986787] [2024-11-28 05:22:40,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:40,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:40,577 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:22:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:40,593 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:22:40,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:40,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2094279, now seen corresponding path program 2 times [2024-11-28 05:22:40,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:40,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613871906] [2024-11-28 05:22:40,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:40,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:40,601 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:22:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:40,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:22:40,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:40,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1177819002, now seen corresponding path program 1 times [2024-11-28 05:22:40,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:40,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669539598] [2024-11-28 05:22:40,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:40,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:40,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:22:40,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669539598] [2024-11-28 05:22:40,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669539598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:22:40,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752583178] [2024-11-28 05:22:40,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:40,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:22:40,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:40,748 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:22:40,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 05:22:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:40,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:22:40,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:40,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:22:40,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752583178] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:22:40,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:22:40,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-28 05:22:40,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012482673] [2024-11-28 05:22:40,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:22:40,913 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:22:40,913 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:22:40,913 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:22:40,913 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:22:40,913 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:22:40,913 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:40,914 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:22:40,914 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:22:40,914 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2024-11-28 05:22:40,914 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:22:40,914 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:22:40,915 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:40,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:40,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:40,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:40,934 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:40,989 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:22:40,990 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:22:40,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:40,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:40,992 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:40,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-28 05:22:40,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:40,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:41,017 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:22:41,017 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: [] [2024-11-28 05:22:41,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:41,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:41,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:41,030 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:41,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-28 05:22:41,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:41,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:41,059 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:22:41,059 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:22:41,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-28 05:22:41,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:41,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:41,071 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:41,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-28 05:22:41,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:41,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:41,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-28 05:22:41,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:41,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:41,095 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:41,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-28 05:22:41,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:22:41,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:41,147 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:22:41,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-28 05:22:41,150 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:22:41,150 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:22:41,150 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:22:41,150 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:22:41,150 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:22:41,150 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:41,150 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:22:41,150 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:22:41,150 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2024-11-28 05:22:41,150 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:22:41,150 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:22:41,151 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:41,154 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:41,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:41,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:41,168 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:41,218 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:22:41,218 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:22:41,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:41,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:41,221 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:41,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-28 05:22:41,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:41,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:41,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:22:41,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:41,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:41,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:41,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:22:41,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:22:41,240 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:22:41,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-28 05:22:41,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:41,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:41,250 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:41,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-28 05:22:41,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:41,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:41,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:22:41,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:41,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:41,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:41,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:22:41,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:22:41,276 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:22:41,280 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-28 05:22:41,280 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 05:22:41,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:41,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:41,284 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:41,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-28 05:22:41,286 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:22:41,287 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:22:41,287 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:22:41,287 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 [] [2024-11-28 05:22:41,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-28 05:22:41,297 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:22:41,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:41,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:22:41,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:41,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:22:41,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:41,395 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 [2024-11-28 05:22:41,396 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 85 states and 106 transitions. cyclomatic complexity: 28 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:41,424 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 85 states and 106 transitions. cyclomatic complexity: 28. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 102 states and 128 transitions. Complement of second has 7 states. [2024-11-28 05:22:41,426 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 [2024-11-28 05:22:41,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:41,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-28 05:22:41,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-28 05:22:41,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:41,428 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:22:41,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:41,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:22:41,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:41,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:22:41,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:41,530 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 [2024-11-28 05:22:41,530 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 85 states and 106 transitions. cyclomatic complexity: 28 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:41,567 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 85 states and 106 transitions. cyclomatic complexity: 28. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 100 states and 123 transitions. Complement of second has 9 states. [2024-11-28 05:22:41,571 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 [2024-11-28 05:22:41,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:41,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2024-11-28 05:22:41,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-28 05:22:41,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:41,572 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:22:41,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:41,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:22:41,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:41,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:22:41,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:41,665 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 [2024-11-28 05:22:41,666 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 85 states and 106 transitions. cyclomatic complexity: 28 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:41,698 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 85 states and 106 transitions. cyclomatic complexity: 28. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 163 states and 213 transitions. Complement of second has 8 states. [2024-11-28 05:22:41,701 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 [2024-11-28 05:22:41,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:41,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2024-11-28 05:22:41,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-28 05:22:41,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:41,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 20 letters. Loop has 4 letters. [2024-11-28 05:22:41,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:41,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 16 letters. Loop has 8 letters. [2024-11-28 05:22:41,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:41,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 163 states and 213 transitions. [2024-11-28 05:22:41,708 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 05:22:41,709 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 163 states to 126 states and 161 transitions. [2024-11-28 05:22:41,709 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-28 05:22:41,716 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-11-28 05:22:41,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 161 transitions. [2024-11-28 05:22:41,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:22:41,716 INFO L218 hiAutomatonCegarLoop]: Abstraction has 126 states and 161 transitions. [2024-11-28 05:22:41,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 161 transitions. [2024-11-28 05:22:41,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 108. [2024-11-28 05:22:41,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 108 states have (on average 1.3055555555555556) internal successors, (141), 107 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:41,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 141 transitions. [2024-11-28 05:22:41,729 INFO L240 hiAutomatonCegarLoop]: Abstraction has 108 states and 141 transitions. [2024-11-28 05:22:41,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:22:41,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:22:41,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:22:41,730 INFO L87 Difference]: Start difference. First operand 108 states and 141 transitions. 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) [2024-11-28 05:22:41,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:41,762 INFO L93 Difference]: Finished difference Result 118 states and 142 transitions. [2024-11-28 05:22:41,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 142 transitions. [2024-11-28 05:22:41,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 05:22:41,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 100 states and 123 transitions. [2024-11-28 05:22:41,769 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2024-11-28 05:22:41,769 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-11-28 05:22:41,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 100 states and 123 transitions. [2024-11-28 05:22:41,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:22:41,769 INFO L218 hiAutomatonCegarLoop]: Abstraction has 100 states and 123 transitions. [2024-11-28 05:22:41,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states and 123 transitions. [2024-11-28 05:22:41,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 88. [2024-11-28 05:22:41,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 88 states have (on average 1.2613636363636365) internal successors, (111), 87 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:41,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 111 transitions. [2024-11-28 05:22:41,778 INFO L240 hiAutomatonCegarLoop]: Abstraction has 88 states and 111 transitions. [2024-11-28 05:22:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:22:41,779 INFO L425 stractBuchiCegarLoop]: Abstraction has 88 states and 111 transitions. [2024-11-28 05:22:41,779 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 05:22:41,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states and 111 transitions. [2024-11-28 05:22:41,780 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 05:22:41,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:22:41,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:22:41,784 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:41,784 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 05:22:41,784 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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;" "assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0;" "havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~y~0#1 := 1 + main_~y~0#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0;" "havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2024-11-28 05:22:41,785 INFO L749 eck$LassoCheckResult]: Loop: "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~y~0#1 := 1 + main_~y~0#1;" [2024-11-28 05:22:41,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:41,785 INFO L85 PathProgramCache]: Analyzing trace with hash -70315429, now seen corresponding path program 2 times [2024-11-28 05:22:41,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:41,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505206529] [2024-11-28 05:22:41,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:41,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:41,799 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:22:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:41,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:22:41,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:41,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1511592, now seen corresponding path program 2 times [2024-11-28 05:22:41,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:41,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500254155] [2024-11-28 05:22:41,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:41,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:41,817 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:22:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:41,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:22:41,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:41,823 INFO L85 PathProgramCache]: Analyzing trace with hash 2130798082, now seen corresponding path program 3 times [2024-11-28 05:22:41,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:22:41,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34954211] [2024-11-28 05:22:41,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:41,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:41,841 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:22:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:22:41,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:22:41,899 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:22:41,899 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:22:41,899 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:22:41,899 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:22:41,899 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:22:41,899 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:41,900 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:22:41,900 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:22:41,900 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2024-11-28 05:22:41,900 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:22:41,900 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:22:41,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:41,904 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:41,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:41,911 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:41,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:41,963 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:22:41,964 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:22:41,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:41,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:41,966 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:41,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-28 05:22:41,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:41,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:41,990 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:22:41,990 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:22:42,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-28 05:22:42,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:42,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:42,003 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:42,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-28 05:22:42,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:42,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:42,034 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:22:42,034 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:22:42,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-28 05:22:42,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:42,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:42,047 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:42,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-28 05:22:42,052 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:42,052 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:42,076 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:22:42,076 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:22:42,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:42,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:42,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:42,084 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:42,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-28 05:22:42,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:22:42,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:42,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:42,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:42,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:42,108 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:42,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-28 05:22:42,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:22:42,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:22:42,188 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:22:42,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-28 05:22:42,192 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:22:42,192 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:22:42,192 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:22:42,192 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:22:42,192 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:22:42,192 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:42,192 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:22:42,192 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:22:42,192 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2024-11-28 05:22:42,192 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:22:42,192 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:22:42,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:42,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:42,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:42,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:42,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-28 05:22:42,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:22:42,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-28 05:22:42,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-28 05:22:42,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:42,302 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:22:42,302 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:22:42,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:42,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:42,305 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:42,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-28 05:22:42,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:42,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:42,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:22:42,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:42,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:42,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:42,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:22:42,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:22:42,325 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:22:42,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:42,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:42,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:42,337 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:42,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-28 05:22:42,340 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:42,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:42,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:42,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:42,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:42,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 05:22:42,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 05:22:42,358 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:22:42,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:42,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:42,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:42,370 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:42,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-28 05:22:42,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:42,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:42,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:42,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:42,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:42,391 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 05:22:42,391 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 05:22:42,396 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:22:42,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-28 05:22:42,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:42,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:42,408 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:42,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-28 05:22:42,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:22:42,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:22:42,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:22:42,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:22:42,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:22:42,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:22:42,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:22:42,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:22:42,436 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:22:42,440 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 05:22:42,440 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 05:22:42,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:22:42,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:42,442 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:42,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-28 05:22:42,446 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:22:42,447 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:22:42,447 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:22:42,447 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 [] [2024-11-28 05:22:42,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:42,458 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:22:42,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:42,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:22:42,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:42,523 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:22:42,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:42,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:42,617 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 [2024-11-28 05:22:42,617 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 88 states and 111 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:42,674 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 88 states and 111 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 124 states and 152 transitions. Complement of second has 9 states. [2024-11-28 05:22:42,674 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 [2024-11-28 05:22:42,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:42,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2024-11-28 05:22:42,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 17 letters. Loop has 4 letters. [2024-11-28 05:22:42,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:42,676 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:22:42,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:42,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:22:42,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:42,736 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:22:42,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:42,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:42,812 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 [2024-11-28 05:22:42,812 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 88 states and 111 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:42,858 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 88 states and 111 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 124 states and 152 transitions. Complement of second has 9 states. [2024-11-28 05:22:42,858 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 [2024-11-28 05:22:42,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:42,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2024-11-28 05:22:42,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 17 letters. Loop has 4 letters. [2024-11-28 05:22:42,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:42,859 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:22:42,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:42,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:22:42,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:42,920 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:22:42,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:42,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:42,991 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 [2024-11-28 05:22:42,991 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 88 states and 111 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:43,040 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 88 states and 111 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 162 states and 195 transitions. Complement of second has 8 states. [2024-11-28 05:22:43,040 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 [2024-11-28 05:22:43,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:43,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2024-11-28 05:22:43,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 17 letters. Loop has 4 letters. [2024-11-28 05:22:43,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:43,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 21 letters. Loop has 4 letters. [2024-11-28 05:22:43,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:43,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 17 letters. Loop has 8 letters. [2024-11-28 05:22:43,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:22:43,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 162 states and 195 transitions. [2024-11-28 05:22:43,044 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 05:22:43,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 162 states to 0 states and 0 transitions. [2024-11-28 05:22:43,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 05:22:43,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 05:22:43,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 05:22:43,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 05:22:43,045 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:22:43,045 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:22:43,045 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:22:43,045 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-28 05:22:43,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-28 05:22:43,045 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 05:22:43,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-28 05:22:43,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 05:22:43 BoogieIcfgContainer [2024-11-28 05:22:43,054 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 05:22:43,055 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:22:43,055 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:22:43,055 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:22:43,056 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:22:36" (3/4) ... [2024-11-28 05:22:43,058 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 05:22:43,059 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:22:43,060 INFO L158 Benchmark]: Toolchain (without parser) took 7384.35ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 119.6MB in the beginning and 329.9MB in the end (delta: -210.3MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2024-11-28 05:22:43,060 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 80.7MB in the end (delta: 216.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:22:43,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.95ms. Allocated memory is still 142.6MB. Free memory was 119.4MB in the beginning and 109.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:22:43,061 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.20ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 108.7MB in the end (delta: 781.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:22:43,061 INFO L158 Benchmark]: Boogie Preprocessor took 34.26ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 107.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:22:43,061 INFO L158 Benchmark]: RCFGBuilder took 300.74ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 98.3MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:22:43,062 INFO L158 Benchmark]: BuchiAutomizer took 6767.24ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 98.1MB in the beginning and 330.0MB in the end (delta: -231.9MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2024-11-28 05:22:43,062 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 419.4MB. Free memory was 330.0MB in the beginning and 329.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:22:43,063 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 80.7MB in the end (delta: 216.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.95ms. Allocated memory is still 142.6MB. Free memory was 119.4MB in the beginning and 109.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.20ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 108.7MB in the end (delta: 781.6kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.26ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 107.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 300.74ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 98.3MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6767.24ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 98.1MB in the beginning and 330.0MB in the end (delta: -231.9MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 419.4MB. Free memory was 330.0MB in the beginning and 329.9MB in the end (delta: 84.0kB). 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 8 terminating modules (3 trivial, 3 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) -1 * y) + m) and consists of 6 locations. One deterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function ((((long) 2 * m) + ((long) -2 * y)) + 1) and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.6s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 4.3s. Construction of modules took 0.2s. Büchi inclusion checks took 1.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 7. Automata minimization 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 77 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 235 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 337 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 174 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 220 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 163 mSDtfsCounter, 220 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax192 hnf100 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf93 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-28 05:22:43,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:43,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:43,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 05:22:43,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 05:22:43,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4358ecd-dc54-4710-96c8-9f629ce1a883/bin/uautomizer-verify-aQ6SnzHsRB/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