./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_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/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_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1 --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 [2024-12-02 11:39:18,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:39:18,873 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-12-02 11:39:18,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:39:18,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:39:18,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:39:18,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:39:18,901 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:39:18,901 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:39:18,901 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:39:18,901 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:39:18,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:39:18,902 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:39:18,902 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 11:39:18,902 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 11:39:18,902 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 11:39:18,902 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 11:39:18,902 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 11:39:18,902 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 11:39:18,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:39:18,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 11:39:18,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:39:18,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:39:18,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 11:39:18,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 11:39:18,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 11:39:18,903 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 11:39:18,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:39:18,903 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 11:39:18,903 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:39:18,903 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:39:18,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:39:18,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:39:18,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:39:18,904 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 11:39:18,904 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 11:39:18,904 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_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 11:39:19,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:39:19,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:39:19,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:39:19,141 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:39:19,142 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:39:19,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-12-02 11:39:21,801 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/data/f7cc5279c/99ba862bafe54348a96e7189ee4d07c4/FLAGa5edcba18 [2024-12-02 11:39:22,000 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:39:22,000 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-12-02 11:39:22,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/data/f7cc5279c/99ba862bafe54348a96e7189ee4d07c4/FLAGa5edcba18 [2024-12-02 11:39:22,020 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/data/f7cc5279c/99ba862bafe54348a96e7189ee4d07c4 [2024-12-02 11:39:22,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:39:22,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:39:22,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:39:22,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:39:22,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:39:22,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5386f022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22, skipping insertion in model container [2024-12-02 11:39:22,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:39:22,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:39:22,170 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:39:22,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:39:22,192 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:39:22,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22 WrapperNode [2024-12-02 11:39:22,193 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:39:22,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:39:22,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:39:22,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:39:22,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,215 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2024-12-02 11:39:22,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:39:22,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:39:22,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:39:22,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:39:22,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,224 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,228 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 11:39:22,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,230 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,230 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,234 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:39:22,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:39:22,236 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:39:22,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:39:22,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (1/1) ... [2024-12-02 11:39:22,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:22,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:22,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:22,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 11:39:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:39:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:39:22,340 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:39:22,342 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:39:22,398 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-02 11:39:22,398 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:39:22,406 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:39:22,406 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:39:22,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:39:22 BoogieIcfgContainer [2024-12-02 11:39:22,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:39:22,407 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 11:39:22,407 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 11:39:22,411 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 11:39:22,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 11:39:22,412 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 11:39:22" (1/3) ... [2024-12-02 11:39:22,413 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d10db24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 11:39:22, skipping insertion in model container [2024-12-02 11:39:22,413 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 11:39:22,413 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:22" (2/3) ... [2024-12-02 11:39:22,413 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d10db24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 11:39:22, skipping insertion in model container [2024-12-02 11:39:22,413 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 11:39:22,413 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:39:22" (3/3) ... [2024-12-02 11:39:22,415 INFO L363 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-12-02 11:39:22,460 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 11:39:22,460 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 11:39:22,460 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 11:39:22,461 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 11:39:22,461 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 11:39:22,461 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 11:39:22,461 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 11:39:22,461 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 11:39:22,465 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) [2024-12-02 11:39:22,479 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-12-02 11:39:22,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:39:22,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:39:22,484 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 11:39:22,484 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 11:39:22,484 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 11:39:22,484 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) [2024-12-02 11:39:22,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-12-02 11:39:22,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:39:22,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:39:22,485 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 11:39:22,486 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 11:39:22,492 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1;" [2024-12-02 11:39:22,492 INFO L749 eck$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;" [2024-12-02 11:39:22,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:22,497 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-12-02 11:39:22,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:22,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561715246] [2024-12-02 11:39:22,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:22,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:22,560 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:39:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:22,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:39:22,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:22,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1174599, now seen corresponding path program 1 times [2024-12-02 11:39:22,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:22,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916313219] [2024-12-02 11:39:22,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:22,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:22,584 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:39:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:22,588 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:39:22,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:22,589 INFO L85 PathProgramCache]: Analyzing trace with hash 889601801, now seen corresponding path program 1 times [2024-12-02 11:39:22,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:22,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658168906] [2024-12-02 11:39:22,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:22,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:22,598 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:39:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:22,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:39:22,685 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:39:22,686 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:39:22,686 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:39:22,686 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:39:22,686 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 11:39:22,686 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:22,686 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:39:22,686 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:39:22,687 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2024-12-02 11:39:22,687 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:39:22,687 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:39:22,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:22,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:22,713 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:22,717 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:22,720 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:22,784 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:39:22,785 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 11:39:22,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:22,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:22,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:22,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-12-02 11:39:22,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:22,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:22,813 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:39:22,813 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: [] [2024-12-02 11:39:22,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-12-02 11:39:22,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:22,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:22,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:22,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-12-02 11:39:22,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:22,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:22,842 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:39:22,842 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: [] [2024-12-02 11:39:22,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-12-02 11:39:22,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:22,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:22,849 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:22,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-12-02 11:39:22,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:22,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:22,869 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:39:22,869 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: [] [2024-12-02 11:39:22,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-12-02 11:39:22,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:22,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:22,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:22,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-12-02 11:39:22,878 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:22,878 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:22,890 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:39:22,890 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: [] [2024-12-02 11:39:22,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-12-02 11:39:22,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:22,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:22,897 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:22,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-12-02 11:39:22,899 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:22,899 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:22,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-12-02 11:39:22,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:22,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:22,923 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:22,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-12-02 11:39:22,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 11:39:22,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:22,959 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 11:39:22,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-12-02 11:39:22,963 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:39:22,963 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:39:22,963 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:39:22,963 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:39:22,963 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 11:39:22,963 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:22,963 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:39:22,963 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:39:22,963 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2024-12-02 11:39:22,963 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:39:22,963 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:39:22,965 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:22,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:22,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:22,974 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:22,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:23,021 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:39:23,024 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 11:39:23,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,027 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-12-02 11:39:23,030 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 [2024-12-02 11:39:23,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:23,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:23,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:23,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:23,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 11:39:23,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 11:39:23,054 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:39:23,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-12-02 11:39:23,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,064 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-12-02 11:39:23,067 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 [2024-12-02 11:39:23,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:23,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:23,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:23,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:23,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 11:39:23,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 11:39:23,086 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:39:23,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-12-02 11:39:23,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,094 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-12-02 11:39:23,096 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 [2024-12-02 11:39:23,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:23,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:39:23,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:23,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:23,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:23,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:39:23,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:39:23,110 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:39:23,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-12-02 11:39:23,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,116 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-12-02 11:39:23,119 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 [2024-12-02 11:39:23,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:23,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:39:23,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:23,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:23,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:23,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:39:23,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:39:23,132 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:39:23,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-12-02 11:39:23,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,139 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-12-02 11:39:23,141 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 [2024-12-02 11:39:23,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:23,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:39:23,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:23,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:23,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:23,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:39:23,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:39:23,156 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 11:39:23,159 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 11:39:23,162 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 11:39:23,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,165 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-12-02 11:39:23,166 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 11:39:23,167 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 11:39:23,167 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 11:39:23,167 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 [] [2024-12-02 11:39:23,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-12-02 11:39:23,175 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 11:39:23,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:23,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:39:23,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:23,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:39:23,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:23,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-12-02 11:39:23,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:39:23,287 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 [2024-12-02 11:39:23,288 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) [2024-12-02 11:39:23,337 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. [2024-12-02 11:39:23,338 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 [2024-12-02 11:39:23,342 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) [2024-12-02 11:39:23,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2024-12-02 11:39:23,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 2 letters. Loop has 4 letters. [2024-12-02 11:39:23,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:23,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 6 letters. Loop has 4 letters. [2024-12-02 11:39:23,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:23,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 2 letters. Loop has 8 letters. [2024-12-02 11:39:23,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:23,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 68 transitions. [2024-12-02 11:39:23,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-12-02 11:39:23,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 26 states and 35 transitions. [2024-12-02 11:39:23,354 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-12-02 11:39:23,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-12-02 11:39:23,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 35 transitions. [2024-12-02 11:39:23,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:39:23,355 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 35 transitions. [2024-12-02 11:39:23,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 35 transitions. [2024-12-02 11:39:23,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2024-12-02 11:39:23,372 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) [2024-12-02 11:39:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2024-12-02 11:39:23,374 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 34 transitions. [2024-12-02 11:39:23,374 INFO L425 stractBuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2024-12-02 11:39:23,374 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 11:39:23,374 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 34 transitions. [2024-12-02 11:39:23,375 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-12-02 11:39:23,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:39:23,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:39:23,375 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:39:23,375 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 11:39:23,375 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1;" "assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0;" "havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume !main_#t~short3#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" [2024-12-02 11:39:23,375 INFO L749 eck$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;" [2024-12-02 11:39:23,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:23,376 INFO L85 PathProgramCache]: Analyzing trace with hash 208134255, now seen corresponding path program 1 times [2024-12-02 11:39:23,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:23,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592242953] [2024-12-02 11:39:23,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:23,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:23,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 11:39:23,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592242953] [2024-12-02 11:39:23,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592242953] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:39:23,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205951487] [2024-12-02 11:39:23,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:23,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:39:23,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,411 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 11:39:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:23,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:39:23,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:23,439 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:39:23,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205951487] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:39:23,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:39:23,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-12-02 11:39:23,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292147657] [2024-12-02 11:39:23,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:39:23,445 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 11:39:23,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:23,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1895802, now seen corresponding path program 1 times [2024-12-02 11:39:23,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:23,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542798450] [2024-12-02 11:39:23,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:23,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:23,453 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:39:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:23,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:39:23,499 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:39:23,499 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:39:23,500 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:39:23,500 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:39:23,500 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 11:39:23,500 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,500 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:39:23,500 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:39:23,500 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2024-12-02 11:39:23,500 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:39:23,500 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:39:23,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:23,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:23,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:23,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:23,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:23,561 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:39:23,561 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 11:39:23,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,563 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-12-02 11:39:23,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:23,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:23,589 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:39:23,590 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: [] [2024-12-02 11:39:23,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-12-02 11:39:23,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,599 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-12-02 11:39:23,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:23,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:23,626 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:39:23,626 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: [] [2024-12-02 11:39:23,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-12-02 11:39:23,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,637 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-12-02 11:39:23,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:23,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:23,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-12-02 11:39:23,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,664 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-12-02 11:39:23,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 11:39:23,666 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:23,752 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 11:39:23,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-12-02 11:39:23,755 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:39:23,755 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:39:23,755 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:39:23,755 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:39:23,755 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 11:39:23,755 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,755 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:39:23,755 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:39:23,755 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2024-12-02 11:39:23,755 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:39:23,755 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:39:23,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:23,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:23,765 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:23,768 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:23,770 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:23,808 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:39:23,808 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 11:39:23,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,810 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-12-02 11:39:23,812 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 [2024-12-02 11:39:23,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:23,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:23,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:23,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:23,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 11:39:23,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 11:39:23,829 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:39:23,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-12-02 11:39:23,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,839 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-12-02 11:39:23,842 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 [2024-12-02 11:39:23,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:23,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:39:23,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:23,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:23,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:23,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:39:23,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:39:23,860 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 11:39:23,863 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 11:39:23,863 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 11:39:23,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:23,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:23,865 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:23,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-12-02 11:39:23,867 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 11:39:23,867 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 11:39:23,867 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 11:39:23,867 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 [] [2024-12-02 11:39:23,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-12-02 11:39:23,878 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 11:39:23,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:23,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:39:23,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:23,909 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:39:23,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:23,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:39:23,991 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 [2024-12-02 11:39:23,991 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) [2024-12-02 11:39:24,060 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. [2024-12-02 11:39:24,061 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 [2024-12-02 11:39:24,062 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) [2024-12-02 11:39:24,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 49 transitions. [2024-12-02 11:39:24,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 49 transitions. Stem has 8 letters. Loop has 4 letters. [2024-12-02 11:39:24,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:24,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 49 transitions. Stem has 12 letters. Loop has 4 letters. [2024-12-02 11:39:24,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:24,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 49 transitions. Stem has 8 letters. Loop has 8 letters. [2024-12-02 11:39:24,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:24,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 95 transitions. [2024-12-02 11:39:24,065 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-12-02 11:39:24,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 57 states and 76 transitions. [2024-12-02 11:39:24,066 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2024-12-02 11:39:24,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2024-12-02 11:39:24,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 76 transitions. [2024-12-02 11:39:24,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:39:24,067 INFO L218 hiAutomatonCegarLoop]: Abstraction has 57 states and 76 transitions. [2024-12-02 11:39:24,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 76 transitions. [2024-12-02 11:39:24,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 52. [2024-12-02 11:39:24,070 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) [2024-12-02 11:39:24,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2024-12-02 11:39:24,070 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 71 transitions. [2024-12-02 11:39:24,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 11:39:24,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:39:24,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:24,073 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) [2024-12-02 11:39:24,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:24,086 INFO L93 Difference]: Finished difference Result 56 states and 70 transitions. [2024-12-02 11:39:24,086 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 70 transitions. [2024-12-02 11:39:24,087 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2024-12-02 11:39:24,088 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 54 states and 68 transitions. [2024-12-02 11:39:24,088 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2024-12-02 11:39:24,088 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2024-12-02 11:39:24,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 68 transitions. [2024-12-02 11:39:24,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:39:24,089 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 68 transitions. [2024-12-02 11:39:24,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 68 transitions. [2024-12-02 11:39:24,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2024-12-02 11:39:24,092 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) [2024-12-02 11:39:24,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2024-12-02 11:39:24,093 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 66 transitions. [2024-12-02 11:39:24,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:39:24,095 INFO L425 stractBuchiCegarLoop]: Abstraction has 52 states and 66 transitions. [2024-12-02 11:39:24,095 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 11:39:24,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 66 transitions. [2024-12-02 11:39:24,096 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2024-12-02 11:39:24,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:39:24,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:39:24,096 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:39:24,096 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:39:24,097 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;" [2024-12-02 11:39:24,097 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;" [2024-12-02 11:39:24,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:24,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2137774577, now seen corresponding path program 1 times [2024-12-02 11:39:24,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:24,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903761936] [2024-12-02 11:39:24,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:24,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:24,103 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:39:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:24,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:39:24,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:24,109 INFO L85 PathProgramCache]: Analyzing trace with hash -401257866, now seen corresponding path program 1 times [2024-12-02 11:39:24,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:24,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259552776] [2024-12-02 11:39:24,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:24,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:24,117 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:39:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:24,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:39:24,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:24,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1463104636, now seen corresponding path program 1 times [2024-12-02 11:39:24,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:24,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816418154] [2024-12-02 11:39:24,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:24,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:24,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 11:39:24,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816418154] [2024-12-02 11:39:24,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816418154] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:39:24,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641137754] [2024-12-02 11:39:24,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:24,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:39:24,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:24,279 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:39:24,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-12-02 11:39:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:24,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:39:24,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:24,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-12-02 11:39:24,435 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:39:24,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641137754] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:39:24,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:39:24,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-12-02 11:39:24,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542581910] [2024-12-02 11:39:24,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:39:24,598 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:39:24,598 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:39:24,598 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:39:24,598 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:39:24,598 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 11:39:24,599 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:24,599 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:39:24,599 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:39:24,599 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2024-12-02 11:39:24,599 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:39:24,599 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:39:24,600 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,619 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,624 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,679 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:39:24,679 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 11:39:24,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:24,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:24,682 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:24,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-12-02 11:39:24,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:24,684 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:24,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-12-02 11:39:24,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:24,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:24,702 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:24,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-12-02 11:39:24,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 11:39:24,705 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:24,741 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 11:39:24,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-12-02 11:39:24,744 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:39:24,744 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:39:24,744 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:39:24,744 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:39:24,744 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 11:39:24,744 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:24,744 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:39:24,744 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:39:24,744 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2024-12-02 11:39:24,744 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:39:24,744 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:39:24,745 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,762 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:24,819 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:39:24,819 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 11:39:24,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:24,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:24,820 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:24,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-12-02 11:39:24,823 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 [2024-12-02 11:39:24,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:24,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:39:24,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:24,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:24,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:24,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:39:24,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:39:24,838 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 11:39:24,840 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 11:39:24,840 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 11:39:24,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:24,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:24,842 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:24,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-12-02 11:39:24,845 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 11:39:24,845 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 11:39:24,845 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 11:39:24,845 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 [] [2024-12-02 11:39:24,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-12-02 11:39:24,853 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 11:39:24,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:24,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:39:24,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:24,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:39:24,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:24,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:39:24,938 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 [2024-12-02 11:39:24,938 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) [2024-12-02 11:39:24,961 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. [2024-12-02 11:39:24,961 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 [2024-12-02 11:39:24,962 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) [2024-12-02 11:39:24,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2024-12-02 11:39:24,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 9 letters. Loop has 12 letters. [2024-12-02 11:39:24,963 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:24,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 21 letters. Loop has 12 letters. [2024-12-02 11:39:24,963 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:24,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 9 letters. Loop has 24 letters. [2024-12-02 11:39:24,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:24,964 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 122 transitions. [2024-12-02 11:39:24,965 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-12-02 11:39:24,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 69 states and 87 transitions. [2024-12-02 11:39:24,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-12-02 11:39:24,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-12-02 11:39:24,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 87 transitions. [2024-12-02 11:39:24,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:39:24,966 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 87 transitions. [2024-12-02 11:39:24,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 87 transitions. [2024-12-02 11:39:24,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2024-12-02 11:39:24,969 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) [2024-12-02 11:39:24,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 84 transitions. [2024-12-02 11:39:24,970 INFO L240 hiAutomatonCegarLoop]: Abstraction has 67 states and 84 transitions. [2024-12-02 11:39:24,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 11:39:24,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:39:24,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:39:24,970 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) [2024-12-02 11:39:25,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:25,155 INFO L93 Difference]: Finished difference Result 151 states and 181 transitions. [2024-12-02 11:39:25,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 151 states and 181 transitions. [2024-12-02 11:39:25,157 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2024-12-02 11:39:25,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 151 states to 122 states and 148 transitions. [2024-12-02 11:39:25,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-12-02 11:39:25,159 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-12-02 11:39:25,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 148 transitions. [2024-12-02 11:39:25,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:39:25,159 INFO L218 hiAutomatonCegarLoop]: Abstraction has 122 states and 148 transitions. [2024-12-02 11:39:25,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states and 148 transitions. [2024-12-02 11:39:25,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 85. [2024-12-02 11:39:25,163 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) [2024-12-02 11:39:25,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 106 transitions. [2024-12-02 11:39:25,164 INFO L240 hiAutomatonCegarLoop]: Abstraction has 85 states and 106 transitions. [2024-12-02 11:39:25,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 11:39:25,165 INFO L425 stractBuchiCegarLoop]: Abstraction has 85 states and 106 transitions. [2024-12-02 11:39:25,165 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 11:39:25,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 106 transitions. [2024-12-02 11:39:25,166 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-12-02 11:39:25,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:39:25,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:39:25,166 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:39:25,166 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 11:39:25,167 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;" [2024-12-02 11:39:25,167 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;" [2024-12-02 11:39:25,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:25,167 INFO L85 PathProgramCache]: Analyzing trace with hash 136279092, now seen corresponding path program 1 times [2024-12-02 11:39:25,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:25,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512314202] [2024-12-02 11:39:25,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:25,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:25,175 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:39:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:25,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:39:25,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:25,181 INFO L85 PathProgramCache]: Analyzing trace with hash 2094279, now seen corresponding path program 2 times [2024-12-02 11:39:25,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:25,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071905129] [2024-12-02 11:39:25,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:25,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:25,185 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:39:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:25,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:39:25,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:25,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1177819002, now seen corresponding path program 1 times [2024-12-02 11:39:25,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:25,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693357409] [2024-12-02 11:39:25,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:25,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:25,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 11:39:25,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693357409] [2024-12-02 11:39:25,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693357409] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:39:25,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288874] [2024-12-02 11:39:25,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:25,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:39:25,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:25,244 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:39:25,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-12-02 11:39:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:25,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:39:25,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:25,296 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:39:25,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288874] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:39:25,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:39:25,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-12-02 11:39:25,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264118119] [2024-12-02 11:39:25,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:39:25,350 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:39:25,350 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:39:25,350 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:39:25,350 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:39:25,350 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 11:39:25,350 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:25,351 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:39:25,351 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:39:25,351 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2024-12-02 11:39:25,351 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:39:25,351 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:39:25,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-12-02 11:39:25,417 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:39:25,417 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 11:39:25,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:25,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:25,419 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:25,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-12-02 11:39:25,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:25,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:25,436 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:39:25,436 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: [] [2024-12-02 11:39:25,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-12-02 11:39:25,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:25,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:25,445 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:25,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-12-02 11:39:25,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:25,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:25,465 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:39:25,465 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: [] [2024-12-02 11:39:25,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-12-02 11:39:25,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:25,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:25,472 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:25,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-12-02 11:39:25,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:25,474 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:25,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-12-02 11:39:25,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:25,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:25,492 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:25,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-12-02 11:39:25,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 11:39:25,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:25,541 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 11:39:25,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-12-02 11:39:25,543 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:39:25,543 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:39:25,543 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:39:25,543 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:39:25,543 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 11:39:25,543 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:25,543 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:39:25,544 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:39:25,544 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2024-12-02 11:39:25,544 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:39:25,544 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:39:25,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,547 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,551 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,553 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,583 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:39:25,583 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 11:39:25,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:25,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:25,584 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:25,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-12-02 11:39:25,587 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 [2024-12-02 11:39:25,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:25,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:39:25,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:25,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:25,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:25,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:39:25,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:39:25,599 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:39:25,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-12-02 11:39:25,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:25,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:25,606 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:25,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-12-02 11:39:25,608 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 [2024-12-02 11:39:25,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:25,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:39:25,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:25,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:25,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:25,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:39:25,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:39:25,622 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 11:39:25,624 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-12-02 11:39:25,624 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 11:39:25,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:25,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:25,626 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:25,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-12-02 11:39:25,627 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 11:39:25,628 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 11:39:25,628 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 11:39:25,628 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 [] [2024-12-02 11:39:25,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-12-02 11:39:25,634 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 11:39:25,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:25,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:39:25,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:25,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:39:25,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:25,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:39:25,687 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 [2024-12-02 11:39:25,687 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) [2024-12-02 11:39:25,701 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. [2024-12-02 11:39:25,702 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 [2024-12-02 11:39:25,702 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) [2024-12-02 11:39:25,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-12-02 11:39:25,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2024-12-02 11:39:25,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:25,703 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 11:39:25,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:25,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:39:25,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:25,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:39:25,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:39:25,757 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 [2024-12-02 11:39:25,757 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) [2024-12-02 11:39:25,775 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. [2024-12-02 11:39:25,775 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 [2024-12-02 11:39:25,776 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) [2024-12-02 11:39:25,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2024-12-02 11:39:25,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 16 letters. Loop has 4 letters. [2024-12-02 11:39:25,776 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:25,776 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 11:39:25,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:25,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:39:25,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:25,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:39:25,812 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:25,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:39:25,827 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 [2024-12-02 11:39:25,827 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) [2024-12-02 11:39:25,849 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. [2024-12-02 11:39:25,849 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 [2024-12-02 11:39:25,850 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) [2024-12-02 11:39:25,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2024-12-02 11:39:25,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 16 letters. Loop has 4 letters. [2024-12-02 11:39:25,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:25,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 20 letters. Loop has 4 letters. [2024-12-02 11:39:25,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:25,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 16 letters. Loop has 8 letters. [2024-12-02 11:39:25,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:25,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 163 states and 213 transitions. [2024-12-02 11:39:25,853 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-12-02 11:39:25,855 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 163 states to 126 states and 161 transitions. [2024-12-02 11:39:25,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-12-02 11:39:25,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-12-02 11:39:25,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 161 transitions. [2024-12-02 11:39:25,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:39:25,855 INFO L218 hiAutomatonCegarLoop]: Abstraction has 126 states and 161 transitions. [2024-12-02 11:39:25,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 161 transitions. [2024-12-02 11:39:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 108. [2024-12-02 11:39:25,860 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) [2024-12-02 11:39:25,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 141 transitions. [2024-12-02 11:39:25,860 INFO L240 hiAutomatonCegarLoop]: Abstraction has 108 states and 141 transitions. [2024-12-02 11:39:25,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 11:39:25,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:39:25,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:39:25,861 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) [2024-12-02 11:39:25,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:25,874 INFO L93 Difference]: Finished difference Result 118 states and 142 transitions. [2024-12-02 11:39:25,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 142 transitions. [2024-12-02 11:39:25,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-12-02 11:39:25,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 100 states and 123 transitions. [2024-12-02 11:39:25,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2024-12-02 11:39:25,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-12-02 11:39:25,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 100 states and 123 transitions. [2024-12-02 11:39:25,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 11:39:25,876 INFO L218 hiAutomatonCegarLoop]: Abstraction has 100 states and 123 transitions. [2024-12-02 11:39:25,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states and 123 transitions. [2024-12-02 11:39:25,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 88. [2024-12-02 11:39:25,880 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) [2024-12-02 11:39:25,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 111 transitions. [2024-12-02 11:39:25,881 INFO L240 hiAutomatonCegarLoop]: Abstraction has 88 states and 111 transitions. [2024-12-02 11:39:25,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:39:25,882 INFO L425 stractBuchiCegarLoop]: Abstraction has 88 states and 111 transitions. [2024-12-02 11:39:25,882 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 11:39:25,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states and 111 transitions. [2024-12-02 11:39:25,883 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-12-02 11:39:25,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:39:25,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:39:25,883 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:39:25,883 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 11:39:25,883 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;" [2024-12-02 11:39:25,883 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;" [2024-12-02 11:39:25,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:25,884 INFO L85 PathProgramCache]: Analyzing trace with hash -70315429, now seen corresponding path program 2 times [2024-12-02 11:39:25,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:25,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919262772] [2024-12-02 11:39:25,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:25,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:25,890 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:39:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:25,896 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:39:25,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:25,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1511592, now seen corresponding path program 2 times [2024-12-02 11:39:25,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:25,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237810653] [2024-12-02 11:39:25,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:25,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:25,900 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:39:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:25,902 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:39:25,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:25,903 INFO L85 PathProgramCache]: Analyzing trace with hash 2130798082, now seen corresponding path program 3 times [2024-12-02 11:39:25,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:39:25,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802990487] [2024-12-02 11:39:25,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:25,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:25,910 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:39:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:25,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:39:25,948 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:39:25,948 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:39:25,948 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:39:25,948 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:39:25,948 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 11:39:25,948 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:25,948 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:39:25,948 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:39:25,948 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2024-12-02 11:39:25,948 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:39:25,948 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:39:25,949 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,955 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:25,983 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:39:25,983 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 11:39:25,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:25,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:25,984 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:25,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-12-02 11:39:25,987 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:25,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:25,999 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:39:25,999 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: [] [2024-12-02 11:39:26,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-12-02 11:39:26,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:26,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:26,007 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:26,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-12-02 11:39:26,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:26,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:26,030 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:39:26,030 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: [] [2024-12-02 11:39:26,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-12-02 11:39:26,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:26,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:26,037 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:26,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-12-02 11:39:26,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:26,040 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:26,058 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 11:39:26,058 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: [] [2024-12-02 11:39:26,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-12-02 11:39:26,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:26,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:26,064 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:26,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-12-02 11:39:26,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 11:39:26,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:26,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-12-02 11:39:26,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:26,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:26,085 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:26,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-12-02 11:39:26,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 11:39:26,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 11:39:26,158 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 11:39:26,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-12-02 11:39:26,161 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 11:39:26,161 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 11:39:26,161 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 11:39:26,161 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 11:39:26,161 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 11:39:26,161 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:26,161 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 11:39:26,161 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 11:39:26,161 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2024-12-02 11:39:26,161 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 11:39:26,161 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 11:39:26,162 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:26,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:26,165 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:26,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:26,171 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 11:39:26,196 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 11:39:26,196 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 11:39:26,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:26,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:26,198 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:26,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-12-02 11:39:26,200 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 [2024-12-02 11:39:26,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:26,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:39:26,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:26,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:26,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:26,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:39:26,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:39:26,213 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:39:26,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-12-02 11:39:26,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:26,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:26,219 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:26,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-12-02 11:39:26,221 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 [2024-12-02 11:39:26,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:26,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:26,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:26,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:26,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 11:39:26,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 11:39:26,235 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:39:26,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-12-02 11:39:26,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:26,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:26,242 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:26,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-12-02 11:39:26,244 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 [2024-12-02 11:39:26,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:26,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:26,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:26,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:26,256 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 11:39:26,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 11:39:26,260 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 11:39:26,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-12-02 11:39:26,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:26,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:26,269 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:26,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-12-02 11:39:26,272 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 [2024-12-02 11:39:26,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 11:39:26,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 11:39:26,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 11:39:26,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 11:39:26,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 11:39:26,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 11:39:26,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 11:39:26,285 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 11:39:26,287 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 11:39:26,287 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 11:39:26,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:39:26,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:26,289 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:26,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-12-02 11:39:26,291 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 11:39:26,291 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 11:39:26,291 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 11:39:26,291 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 [] [2024-12-02 11:39:26,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-12-02 11:39:26,297 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 11:39:26,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:26,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:39:26,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:26,334 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:39:26,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:39:26,378 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 [2024-12-02 11:39:26,378 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) [2024-12-02 11:39:26,417 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. [2024-12-02 11:39:26,417 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 [2024-12-02 11:39:26,418 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) [2024-12-02 11:39:26,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2024-12-02 11:39:26,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 17 letters. Loop has 4 letters. [2024-12-02 11:39:26,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:26,418 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 11:39:26,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:26,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:39:26,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:26,457 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:39:26,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:26,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:39:26,501 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 [2024-12-02 11:39:26,501 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) [2024-12-02 11:39:26,537 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. [2024-12-02 11:39:26,538 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 [2024-12-02 11:39:26,538 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) [2024-12-02 11:39:26,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2024-12-02 11:39:26,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 17 letters. Loop has 4 letters. [2024-12-02 11:39:26,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:26,539 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 11:39:26,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-12-02 11:39:26,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:26,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-12-02 11:39:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:26,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:39:26,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:26,574 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:39:26,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:26,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:39:26,615 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 [2024-12-02 11:39:26,615 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) [2024-12-02 11:39:26,648 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. [2024-12-02 11:39:26,648 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 [2024-12-02 11:39:26,649 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) [2024-12-02 11:39:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2024-12-02 11:39:26,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 17 letters. Loop has 4 letters. [2024-12-02 11:39:26,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:26,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 21 letters. Loop has 4 letters. [2024-12-02 11:39:26,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:26,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 17 letters. Loop has 8 letters. [2024-12-02 11:39:26,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 11:39:26,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 162 states and 195 transitions. [2024-12-02 11:39:26,650 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 11:39:26,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 162 states to 0 states and 0 transitions. [2024-12-02 11:39:26,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 11:39:26,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 11:39:26,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 11:39:26,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 11:39:26,651 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 11:39:26,651 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 11:39:26,651 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 11:39:26,651 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-12-02 11:39:26,651 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-12-02 11:39:26,651 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 11:39:26,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-12-02 11:39:26,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 11:39:26 BoogieIcfgContainer [2024-12-02 11:39:26,657 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 11:39:26,658 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:39:26,658 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:39:26,658 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:39:26,658 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:39:22" (3/4) ... [2024-12-02 11:39:26,660 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 11:39:26,660 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:39:26,661 INFO L158 Benchmark]: Toolchain (without parser) took 4637.36ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 96.3MB in the end (delta: 20.1MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-12-02 11:39:26,661 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:39:26,661 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.29ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 106.4MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:39:26,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.68ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.4MB in the end (delta: 973.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:39:26,662 INFO L158 Benchmark]: Boogie Preprocessor took 19.65ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 104.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:39:26,662 INFO L158 Benchmark]: RCFGBuilder took 169.98ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 95.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:39:26,662 INFO L158 Benchmark]: BuchiAutomizer took 4250.72ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 97.3MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:39:26,662 INFO L158 Benchmark]: Witness Printer took 2.65ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 96.3MB in the end (delta: 15.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:39:26,664 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 168.29ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 106.4MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.68ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.4MB in the end (delta: 973.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.65ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 104.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 169.98ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 95.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4250.72ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 97.3MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.65ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 96.3MB in the end (delta: 15.8kB). 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 4.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 7. Automata minimization 0.0s 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, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 337 SdHoareTripleChecker+Invalid, 0.2s 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: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-12-02 11:39:26,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-12-02 11:39:26,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-12-02 11:39:27,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 11:39:27,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe252d-e73f-4348-94fc-a20e716f8dce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE